Terms and Tools Used in MACROeconomics
These are the more important terms you will encounter in your reading or class discussions. Additional terms and definitions can be found in the glossary at the back of the textbook.
The terms below are approximately in the order in which you are likely to encounter them. Notice that many of the terms below describe people’s behavior or imply a theory about behavior. However, a tool is a conceptual creation that enables theories to be applied to various situations. In other words, not all of the terms are names of tools.
Items marked with an asterisk (*) are not stressed in the book, but are important.
Terms are shown as Italic.
Tools are shown in boldface.
____________________
Chapter One
economics -the study of choices people make in a world of limits
*choice- the act of selecting one of many alternative things to do or consume
scarcity- people cannot have everything they want; resources and goods are limited compared to desires.
goods- things people want.
scarce goods- things people want that are limited quantities compared to the desire for them; also called economic goods
resources- things that are used to make goods. Sometimes called factors or inputs. These include land, labor, skills, capital, and natural resources.
*land- the resource of space, especially when used to produce food. Generally, land can usually be used over and over without vanishing.
*labor- the time of people as they work to produce things.
*skills- ability, talents, and training enabling people to produce things.
*capital- a man-made resource, such as machines, tools, and equipment. Capital usually lasts a long time, and can be used without being used up.
*natural resources- resources such as oil, coal, minerals, lumber, and water which can be extracted from nature or produced in time with its help.
*products- goods or services which have been produced. Sometimes called output.
choices in economics -some of the choices that economics deals with are (1) which goods (or outcomes) we will pursue, (2) how will we obtain the goods or outcomes, and (3) who will get each good or benefit from the outcome?
rationing- distribution of scarce goods and resources, either by charging of prices or other means.
costs -things that have to be given up
free good -a good that is not scarce, and therefore a good that has no cost; there is no such thing
conflict -differences in opinions about what should be done or how it is to be accomplished
competition- conflicts and contests to gain control or use of scarce goods and resources. Competition is the natural result of scarcity and thus exists, in some form, whenever people's desires differ.
values- personal feelings about how desirable things or outcomes are
subjective values- different people view things and outcomesdifferently.
rational decision-making -choosing or behaving in the way that best gets a person what he or she wants, given the circumstances
*economic theory- ideas and models that describe the cause and effect relationships that are involved when decisions are made.
*scientific thinking- the approach we will take to economics; we try to predict a decision or its results rather than describe exactly how it is made or judge whether we agree with it.
scientific method -the approach of science; formulate a theory, test it, and revise it until it explains and predicts
model -a simplification or simplified theory
ceteris paribus- examining the effects of one event or circumstance in isolation from everything else by assuming that nothing else is changing. The term is Latin for "everything else being the same."
association- when one event happens at the same time or after another event, but one has not necessarily caused the other.
causation- when one event makes another event happen.
as-if -observing that a person's actions may be the same as they would be if they were doing something they may not be actually doing
normative economics- subjective judgments about what ought to be or what should happen. These cannot be tested or proven scientifically, as they are only opinion.
positive economics- scientific study of things as they are, often involving if-then relationships.
microeconomics- the study of small-scale decisions and their results. These include the production, consumption, and trade decisions made by individuals, households, business firms, and industries. Government regulation of trade, production, and consumption is also studied.
private sector - businesses and individuals
macroeconomics- the study of large scale decisions and their results. These include spending, taxing, production, and wealth transfer decisions by governments and countries. The policy decisions that result in unemployment, inflation, economic growth, and high interest rates are also studied
public sector -government
Chapter Two
utility- the benefit, happiness, or satisfaction expected from a choice or option.
opportunity cost-the highest valued alternative given up; the relevant cost in every decision.
*economic incentives- costs and utilities/benefits associated with an action, choice or opportunity.
response to incentives-people change behavior based on perceived changes in the costs or the benefits of an option.
long run- period of time long enough to permit a decision maker to change anything.
short run- a period of time in which some factors or conditions are fixed and cannot be changed by a decision-maker
marginal thinking-all decisions are made incrementally or a little at a time, examining the incremental or additional changes or effects of a decision.
margin -the part or increment that can be changed in a decision, or that is under a person's comtrol. "Marginal" is used to refer to this chunk that a decision can be made about.
marginal opportunity cost (marginal cost)-the highest valued alternative given up to do a marginal (or incremental) amount of an activity; the margin is often specified. Usually rises as quantity of a particular activity rises.
marginal utility -the benefit (satisfaction) received or anticipated when an additional amount of an activity is undertaken; usually used with marginal opportunity cost. Usually falls as quantity of a particular activity rises, according to the Law of Diminishing Returns.
(law of) diminishing returns- the observation that the benefit of an action tends to fall as it is repeated (in a particular span of time). Also implies that the cost of an action tends to rise as it is repeated.
costly information- information is scarce and thus many decisions are made with limited information; information costs are the costs of obtaining information.
secondary effects- when actions alter the incentives (costs and benefits) involved in making other decisions (or taking other actions); these can include decisions made by other people or decisions made in the future.
economization, economizing -- choosing so as to minimize cost or maximize benefits. Usually, this means choosing the option (or action) that has the lowest opportunity cost from among several options that give the same benefit; might also involve choosing the highest benefit option among those with identical costs.
trade- voluntarily giving up goods to another person in exchange for goods which are more highly valued.
Chapter Three
production possibilities - the combinations of two goods that can be produced with given resources
efficient, efficiency -getting the most possible of whatever you are trying to get; efficient is the adjective, efficiency is the noun
production efficiency - (sometimes also productive or productively efficient) the situation in which the amounts of goods being produced with available resources and abilities is as great as possible. When two or more goods are being considered, this requires that no good can be produced in greater quantity unless the output of some other good is reduced.
production possibilities curve -a graphical representation of the efficient combinations of two goods that are possible to produce at a particular time, given a set of resources (and their current abilities).
shift in production possibilities- movement in the production possibilities curve, indicating a change in the amounts of at least one good that can be produced. The curve will shift to the right, indicating greater production, if more resources are available, new technology enables more production, or if institutional changes (such as changes in the legal system) enable greater production.
comparative advantage -the ability to produce a good at a lower (or the lowest) marginal opportunity cost, when compared with other producers (resources)
law of comparative advantage -the rule that says that production of goods is maximized if each resource or producer is used to make the good that the resource or producer can produce at lowest marginal opportunity cost
specialization- concentration on producing one kind of good or performing one kind of action rather than producing a variety of goods for oneself.
division of labor- separating production into several different tasks, each of which is performed by a different worker. It is similar to specialization, except that one good is made instead of several different goods.
absolute advantage -the ability to produce a greater amount of some good than other producers
Chapter Four
allocative (allocation) efficiency -distributing goods in a way that maximizes total utility; sometimes called distributive or distribution efficiency
invisible hand -the principle that trade will lead a person to provide things that other people want, even though his intention is to acquire some thing that he wants
private property rights-the recognized and enforced ability to trade and use goods and to be protected from persons who might use force or threat to take goods; ownership rights
*incentives provided by property rights- owners of goods and resources will generally take care of things they own, develop and utilize resources they own, conserve valuable resources and goods for future use or sale, and take care that their property is not used in a way that harms others.
transactions costs-costs associated with the action of trade, including information and transportation costs.
middleman- a person who specializes in lowering transactions costs by buying and selling goods or otherwise arranging trades.
money -an item that is commonly used in exchanges, and is desired because of its value in exchanges, even though it is not consumed or used itself
medium of exchange -an item that is received in one exchange only so it can be traded away in another, and is desired only for this function; an item that is in the middle of most or all trades. Using a medium of exchange reduces transactions costs. Money is a medium of exchange.
market -a setting in which people negotiate and exchange with others
Chapter Five
demand-the relationship between the price and quantity demanded of a good, all else being held constant; demand is based on marginal utility.
quantity demanded-the amount of a good that buyers wish to buy at a particular price.
law of demand - the rule that says that the demand relationship is an inverse or negative one (as price rises, quantity demanded falls, all else being held constant)
substitute- good used instead of another
law of diminishing marginal utility- an example of the law of diminishing returns (see Chapter Two), which says that as larger quantities of a good are consumed, the value of an additional or marginal amount will fall. In other words, marginal utility declines as consumption goes up. This is one basis for the law of demand.
elastic demand- when buyers are very response to changes in price, due to the availability of substitutes.
inelastic demand- when buyers do not respond to changes in price, due to lack of substitutes.
market demand curve (schedule)- graphical depiction of demand; graph showing the relationship between prices and the amounts demanded of a good by all individuals in a market area.
opportunity cost of production- the opportunity cost of producing a good or service, including the costs of all resources to make the good or services..
quantity supplied-the amount of a good that sellers wish to sell at a particular price.
*supply-the relationship between the price and quantity supplied of a good, all else being held constant; the relationship between the amount of a good offered for sale by sellers and the price of the good; supply is based on marginal opportunity cost.
law of supply- states that the supply relationship is a direct one (as price of a good gets higher, the amount offered for sale will increase, all else being held constant).
*market- the total of trades and trade negotiations between buyers and sellers in which they express their desires (reflected in supply and demand).
demand and supply equilibrium-the unique price and quantity combination at which the quantity demanded equals the quantity supplied in a market; where the market is headed or will end up. Market forces pushing price up are in balance with those pushing price down. Notice, there is actually no law of supply and demand, but the equality implied by equilibrium is what people mean when they use this expression.
*disequilibrium- the state when a market in not in equilibrium.
*excess supply- a greater quantity supplied than is demanded, indication of price above equilibrium; also called a surplus
*surplus- a greater quantity supplied than is demanded, indication of price above equilibrium; also called excess supply
*excess demand- greater quantity demanded than is supplied, indication of price below equilibrium; also called a shortage
*shortage-a greater quantity demanded than is supplied, indication of price below equilibrium; also called excess demand
Chapter Six
*increase in demand -a change in the relationship between price and quantity demanded so that a greater quantity of the good is demanded, at every possible price, than was true before. This is shown by moving the demand curve rightward. This is different from an increase in quantity demanded, which occurs without the demand curve moving.
*decrease in demand -a change in the relationship between price and quantity demanded so that a smaller quantity of the good is demanded, at every possible price, than was true before. This is shown by moving the demand curve to the left. This is different from an decrease in quantity demanded, which occurs without the demand curve moving.
complement- good used along with another
normal good- good which is purchased in greater quantity as the buyers’ incomes rise.
inferior good- good which is purchased in smaller quantity as the buyers’ incomes rise
*events that increase demand- increases in income (for normal goods), increases in the prices of substitutes (or fewer available substitutes), decreases in the prices of complements (or more available complements), higher expected future prices, more consumers, changes in consumer preferences (through advertising, information, fashions, or environmental factors such as laws and weather).
*events that decrease demand- decreases in income (for normal goods), decreases in the prices of substitutes (or more available substitutes), increases in the prices of complements (or fewer available complements), lower expected future prices, fewer consumers, changes in consumer preferences (through decreased advertising, information, fashions, or environmental factors such as laws and weather).
*increase in supply- a change in the relationship between price and quantity supplied so that a greater quantity of the good is offered for sale, at every possible price, than was true before. This is shown by moving the supply curve rightward. This is different from a change in quantity supplied, which occurs without the supply curve moving.
*decrease in supply- a change in the relationship between price and quantity supplied so that a smaller quantity of the good is offered for sale, at every possible price, than was true before. This is shown by moving the supply curve leftward. This is different from a change in quantity supplied, which occurs without the supply curve moving.
*events that increase supply- decreases in the prices of resources, improvements in technology, conditions favorable to production (such as laws or good weather), reductions in taxes.
*events that decrease supply- increases in the prices of resources, conditions unfavorable to production (such as laws or bad weather), increases in taxes.
Chapter Eight
Gross Domestic Product (GDP) -the market value of all final goods and services produced domestically during the year. GDP includes domestic production by foreigners and excludes foreign production by citizens.
final goods and services- goods and services which are purchased by their ultimate consumers.
intermediate goods- goods purchased for resale or used to produce other goods.
expenditure approach- determining GDP by summing the expenditures on final goods and services.
resource cost-income approach- determining GDP by summing the costs of producing goods and services.
transfer payments- gifts or payments that are not for production of goods and services; transfer payments do not count in GDP.
GDP=C+I+G+(X-M) expresses that GDP is the sum of the spending of consumers, businesses, government and foreigners on domestic current output; used to calculate GDP using the expenditure approach.
*Gross National Product (GNP) -the market value of all final goods and services produced by citizens of a country during the year. GNP excludes domestic production of foreigners and includes foreign production by citizens.
nominal values- values expressed in current dollar amounts. Also called money values.
real values- values that have been adjusted to remove the effects of inflation, or expressed in the prices (money) of another year.
base year- the year used as the source of price information when real values are computed.
inflation rate-the rate of change in prices over time, on an annual basis.
price index- a number which is calculated from the economy’s price and output data, and which will allow estimation of the inflation rate over time. Generally, a price index is constructed by determining the sums of money that would be necessary to purchase the same combination of goods at two different time periods (and at two sets of prices), taking a ratio of these sums, and multiplying by 100. The percentage change in a price index over time can be used as a measure of inflation. By the way, the plural of index is "indices."
Consumer Price Index (CPI)- a price index which is calculated using a combination of items which consumers are likely to buy. This index is one of those most commonly used by government and business to determine inflation at the retail level.
GDP deflator- a price index which is calculated using the goods comprising GDP.
nominal (current) GDP - GDP computed using current year’s prices.
real (constant) GDP- GDP that has been adjusted for inflation by use of a price index or price ratio (ratio of price indices). Real GDP is essentially GDP for one year, as it would be evaluated in some other year's prices (the other year is referred to as the "base year"). Real GDP is also sometimes called ?real output.?

*real value calculation- any nominal or money value can be converted into the equivalent amount of money of some other year. The converted amount is called the real value. To convert an amount from one year (the "nominal year") to another year (the "real year") the formula is

*price ratio -the ratio of price indices, this can also be a ratio of nominal to real GDP
(personal) consumption (C)-household (consumer) spending on goods and services. It is the largest component of GDP expenditure in the United States economy.
(private) investment (I)-business spending on goods and services.
*capital- a man-made resource, such as machines, tools, and equipment. Capital usually lasts a long time, and can be used without being used up.
inventory investment- changes in goods produced but not sold and in resources purchased but not used. These are counted in GDP for the year they are produced.
government spending (G) - purchases by the government of goods and services (consumption and investment); the second largest component of GDP.
exports (X)- goods produced domestically but sold to people in other countries.
imports (M)- goods produced in other countries but purchased domestically.
net exports (X-M)- goods produced domestically but purchased by foreigners minus goods purchased from foreigners.
GDP per capita- GDP of a country divided by the country's population
Chapter Nine
*percentage change or percentage difference- this is not really an economic tool, but it is a mathematical one. It is the change in some variable, divided by the initial value of the variable. Often, it is calculated from one year to the next. It is also known as the "rate of change." The shorthand used in class for this is % followed by a triangle.
growth rate- the percentage change or percentage difference in some variable, such as real GDP; also known as the "rate of change."
inflation rate-the rate of change in prices over time, on an annual basis; the percentage change in the price index from one year to the next.
economic growth rate- the growth rate in real GDP on an annual basis
stagflation- inflation with slow economic growth (or a recession).
business cycle- term used to describe that the economy has ups and downs; a fairly useless term (normatively speaking).
recession- a downturn in the economy; sometimes used to describe a fall in real GDP lasting six months or more.
depression- a prolonged recession.
unanticipated inflation- inflation that was not expected by decision-makers.
anticipated inflation- the level of inflation that is expected by decision-makers.
net monetary debtor- a person who owes more money than he is owed by others. Such a person will gain from an unanticipated inflation.
net monetary creditor- a person who is owed more money by others than she owes to others. Such a person is harmed by an unanticipated inflation.
(nominal) money interest rate-the percentage difference between the amount of money borrowed at one time and the amount repaid at another, on an annual basis.
inflationary premium- component of the money interest rate that compensates a lender for the effects of inflation.
real interest rate- the interest rate in terms of purchasing power, that is, when changes in prices have been accounted for. The real interest rate is approximately the nominal interest rate minus the inflation rate. One way to think of it is as the interest rate in terms of things rather than money.
Chapter Ten
nominal) money interest rate-the percentage difference between the amount of money borrowed at one time and the amount repaid at another, on an annual basis.
inflationary premium- component of the money interest rate that compensates a lender for the effects of inflation.
real interest rate- the interest rate in terms of purchasing power, that is, when changes in prices have been accounted for. The real interest rate is approximately the nominal interest rate minus the inflation rate. One way to think of it is as the interest rate in terms of things rather than money.
bond -a promise to pay a certain amount in the future. The promise might also involve paying interest between the current time and the future big payoff. By selling a bond, a government or business is borrowing money. The interest rate on the loan is determined by the difference between the price the bond sells for (basically, the borrowed money) and the payoff or "face value" of the bond (the repayment of the loan).
*asset- something of value that pays money or provides benefits over time
*security- an asset, such as a bond, often issued by the government
principal -the amount deposited or lent and that will earn interest
present value -the amount that one has now, or its equivalent. This is the same as the principal.
future value -the amount that one will have in the future, based on the principal earning interest
asset value -the present value or expected current price of a piece of real estate, a bond, or other property that might pay its owner money or produce benefits over time. The value of an asset is always inversely related to the interest rate; it represents the present value of the expected net benefits of owning the asset. As an extreme, if we assume the asset will last (virtually) forever, asset value is the annual net income from the asset divided by the interest rate; Asset value = Annual net income/ interest rate
in perpetuity- forever. When an asset will give benefits "in perpetuity," its current value or price is its annual income divided by the interest rate. Otherwise, its value will be less than that amount (but is still inversely related to the interest rate).
(civilian) labor force- persons who are either employed or unemployed (see unemployment); persons who are over 16, free to work, and willing to work (either they are working or looking for work).
unemployed- the situation in which one is either actively looking for work or waiting to start work (such as during a temporary layoff) but does not have a job currently. A person in such a situation is unemployed. Most unemployment is due in some way to information costs, unless there is a price floor of some kind at work.
labor force participation rate- the percentage of the population that is in the labor force.
rate of unemployment - the percentage of persons in the labor force who are unemployed; also called the "unemployment rate."
frictional unemployment- unemployment that is caused by the job search process and the costs involved in getting information on available jobs. One kind of unemployment caused by information costs.
structural unemployment- unemployment caused by changes in the economy which will require some workers to get retrained before they can find a job. The longer it takes the worker to learn that he needs training and how it can be obtained, the longer the worker will be unemployed. This is another kind of unemployment caused by information costs.
cyclical unemployment- unemployment resulting from cycles in the economy affecting the demand for labor; it takes buyers and sellers in the labor market to adjust to new realities concerning wages, especially if the labor market is frequently changing. It simply expresses that changes in demand for labor will make information about the labor markets more difficult to obtain for a while.
full employment- the level of employment that exists when only "natural" unavoidable unemployment exists; employment of all resources that are not frictionally or structurally unemployed.
natural rate of unemployment- the unemployment that, on average, normally exists due to information costs in the economy. The long term average amounts of frictional and structural unemployment make up the natural rate.
*discouraged workers- potential workers who have left the labor force because finding a job is hard for them.
employment/population ratio- the percentage of people in the labor force who have jobs out of those who could be in the labor force (over 16 and not in the military).
potential output- the output of the economy if it is at full employment.
Chapter Eleven
resource markets- also called "factor markets" or "input markets", these are where labor, capital and natural resources are bought and sold; the market for inputs that are used to produce goods and services. Resource markets (and the demand for various resources) are affected by the demand for goods and services.
wage- the price of labor resources. Wages and other resource prices affect the cost of goods and services, and thus their supply.
loanable funds market (money market, capital market) - the market in which borrowing and lending of households, businesses, and governments are coordinated, loans are made, and interest rates are determined. The "buyers" of loans (capital) are borrowers, the ?sellers? are lenders, and the ?price? is the interest rate. Financial institutions, such as banks, serve as middlemen in this market.
interest rate-the percentage difference between the amount of money borrowed at one time and the amount repaid at another, on an annual basis. The interest rate enables comparisons of values in the future to values in the present.
foreign exchange market- market in which money of different countries is bought and sold to enable international trade.
exchange rate- the value (or price) of one country's money in terms of another country's money. Exchange rates determine what the prices of one country's goods will be in other countries.appreciation- a country's currency becoming more valuable (higher value or price) in foreign exchange markets.
depreciation- a country's currency becoming less valuable (lower value or price) in foreign exchange markets.
trade deficit- when imports are greater than exports, so that money is leaving the country to pay for imported goods and services.
trade surplus -when exports are greater than imports, so money is entering the country as other countries pay for goods and services being shipped to them
goods and services market- a combination of all of the markets in which goods and services are traded.
long run -a time period sufficient to enable decision-makers to adjust to market changes.
short run -a time period in which decision-makers have not yet adjusted to market changes.
aggregate demand curve (AD)-the downward-sloping graphical representation of the inverse relationship between the price level and the quantity of goods and services desired by buyers (consumers, businesses, government, and foreigners) from the economy. The relationship is inverse because the purchasing power of money rises as price level decreases, lower price levels tend to lower real interest rates (making it easier to borrow), and lower price levels reduce buyers' tendency to substitute foreign goods for domestic purchases.
real balance effect- the inverse relationship between the price level and the value (purchasing power) of assets held as cash.
aggregate supply curve- the graphical representation of the relationship between the price level and the quantity of goods and services produced in the economy. In the short run, the aggregate supply is thought to be a positive relationship (shown as an upward sloping curve). In the long run, aggregate supply is represented by a vertical line indicating that output does not depend on the price level.
short run aggregate supply (SRAS)- in the short run, the output of the economy is directly related to the price level because, as prices rise, resource costs (based on long-term contracts) will not increase as fast, so profits (and incentives to expand production) will increase.
long run aggregate supply (LRAS)- in the long run, the output of the economy is not related to the price level because, as prices rise, resource costs will eventually increase, removing incentives to expand production as a response to the price level. Output is based on technology and the resources available at full employment.
short run macroeconomic equilibrium -the real GDP and price level at which the short-run aggregate supply and the aggregate demand curve are equal.
long run macroeconomic equilibrium -the real GDP and price level at which the short-run aggregate supply, the long run aggregate supply, and the aggregate demand curve are equal. In long-run equilibrium, resource markets, goods/services markets, and loanable funds markets must all be in equilibrium. This implies that the actual inflation rate is equal to the expected inflation rate, that the prices of goods are equal to their costs of production, and that interest rates reflect the normal long run return on capital investments.
full employment equilibrium -the long run macroeconomic equilibrium, so called because all resources are being used to their full capacity.
natural rate of unemployment- the level of unemployment at full employment equilibrium; some unemployment (frictional unemployment) is considered unavoidable or natural.
anticipated change- a change that is predicted by decision-makers.
unanticipated change- an unexpected change.
unanticipated increase in aggregate demand- a movement of the aggregate demand curve to the right, as would be caused by an increase in domestic buyers' real wealth, a fall in real interest rates, an increase in optimism, an increase in anticipated inflation, higher real incomes of buyers in other countries, or a fall in the exchange rate. (The opposites of these would cause a decrease in aggregate demand, which would move the aggregate demand curve to the left.)
*unanticipated increase in long-run aggregate supply- a movement to the right of the long run aggregate supply curve, as would be caused by an increase in the supply of resources, increases in technology, or institutional changes. (The opposites of these would cause a decrease in long run aggregate supply, which would move the long run aggregate supply curve to the left.)
productivity- the average output of labor divided by the number of worker hours; the amount of product produced per hour worked
*unanticipated increase in short-run aggregate supply- a movement to the right of the short run aggregate supply curve, as would be caused by an decrease in the prices of resources, favorable conditions for production, or temporary institutional changes. (The opposites of these would cause a decrease in short run aggregate supply, which would move the short run aggregate supply curve to the left.)
*self-correcting mechanism-when an economy is not operating full employment, changes in wages, resource prices, and interest rates will eventually restore long run equilibrium without government intervention. Specifically, if output is below full employment, resource prices fall, due to the low resource demand, thus increasing SRAS. Also, if output is below full employment levels, businesses will want to invest less which will result in less borrowing, lowering real interest rates and increasing AD. Opposites of these things will occur if output is above full employment.
permanent income hypothesis- consumption spending by households depends on how households view their long term income. Consumption spending will increase only if households expect income to rise permanently; wealth (a long-term measure of accumulated income) will affect consumption whereas temporary fluctuations in short-term income will not . Thus, the consumption component of aggregate demand is fairly stable (at least as far as the effect of income).
Chapter Twelve
central bank- authority that controls the banking industry and money supply of a country.
money- anything commonly used and generally accepted as final payment of debts. in the United States, money includes bank deposits, travelers' checks, and currency. Credit cards are not money.
liquid asset- anything that can be quickly transformed into purchasing power without loss of value.
medium of exchange- an asset used to buy goods or services. One of the functions of money.
accounting unit- a way of measuring the relative value of goods and services. One of the functions of money.
store of value- a way of preserving value or purchasing power over time. One of the functions of money.
standard of deferred payment- something used to make payments over time. A function of money.
fiat money- money whose principal value to people is that it is accepted in exchanges and issued by some authority; it is not "backed up" by any valuable asset.
currency- money in the form of cash (per money) and coin
money supply- the amount of money available for people to spend. Also called the "stock of money."
M1- one of the main measures of money, M1 consists of currency, demand deposits, interest-earning checkable deposits, and travelers' checks.
transactions accounts- any account from which funds can be drawn to make a payment.
demand deposits- checking account money; money which can be transferred by check, but which does not generally earn interest.
other checkable deposits- money in accounts that earn interest but which are accessed by check writing. Also called "interest-earning checkable deposits."
M2 -consists of M1 plus savings accounts, time deposits (see below), money market mutual funds, and various short-term loans and deposits.
time deposits- savings account balances of less than $100,000, often earning some interest.
banking or depository institutions- businesses that accept deposits and make loans; these include banks, savings and loans, and credit unions. For convenience, we will just call them all "banks."
money market mutual funds- checkable, interest-earning accounts with brokerage houses.
credit- money acquired by borrowing.
Federal Reserve System (Federal Reserve Bank)-the central bank of the United States, it has control over the banking industry and the money supply in the U. S.
"The Fed" -nickname for the Federal Reserve System.
*savings and loan associations- institutions that openly accept deposits, make loans, and pay dividends on deposits made (shares). In most ways, similar to commercial banks, except that depositors are considered "owners."
*credit unions- associations or cooperatives that accept deposits, pay interest or dividends on the deposits, and make loans to members. Sort of like a bank that you join. Usually, you must be an employee or somehow affiliated with a particular employer or occupation to join.
*commercial banks- financial institutions that operate for profit, are owned by stockholders, accept many different kinds of deposits, and make loans of various sorts.
banking system (industry)- commercial banks, savings and loan associations and credit unions taken as a whole. All are controlled by the Federal Reserve.
actual (bank) reserves- vault cash plus bank deposits at the Fed
vault cash- coins and cash held by banks. Vault cash is not money; instead, it is actual reserves.
fractional reserve banking system-a system in which banks keep only a portion of their deposits to back up those deposits.
required reserves- reserves which banks are must have to secure their deposits. They are equal to the demand
deposits in the bank times the required reserve ratio.
required reserve ratio (r)- the fraction of deposits that banks must hold in the form of actual reserves. The ratio is set by the Fed. If the Fed reduces the required reserve ratio, excess reserves will rise, thus enabling banks to lend more, create demand deposits and thus expand the money supply.
excess reserves- the amount by which actual reserves exceed required reserves. Excess reserves can safely be lent out, as they are not legally needed to secure deposits in the bank.
bank expansion- the act by depository institutions of creating money by making new loans.
deposit expansion multiplier- the number used to determine how many dollars will actually be added to the money supply for each one dollar addition to bank reserves. It is inversely related to the required reserve ratio. The expansion multiplier will be reduced if the public increases its holding of cash or if banks voluntarily keep excess reserves rather than maximizing their loans.
potential deposit expansion multiplier (1/ r)- the number used to determine how many dollars might, at most, be added to the money supply for each one dollar addition to bank reserves. It is the inverse of the required reserve ratio.
*potential bank expansion equation -the formula relating additional excess reserves in the banking system to the maximum amount of money that can be eventually generated by banks in the form of new loans. This is in addition to any money directly created when actual reserves are created by the Fed. Specifically, new loans= (new ER)/r , where ER is excess reserves and r is the required reserve ratio.
cash drain or cash (currency) leakage- when the public increases its holding of cash while reducing its bank deposits.
Federal Open Market Committee- a board that sets Fed policy concerning the buying and selling of bonds.
securities -bonds
government securities- government issued bonds and "bills" (short term bonds); sold by the government to borrow money.
open market operations- the most frequently used tool of the Fed, these are purchases or sales of bonds by the Fed. Purchase of bonds by the Fed will raise bank actual reserves and thus increase demand deposit creation and the money supply. Sale of bonds by the Fed will have the opposite effect.
monetary base- the sum of currency in circulation (in the hands of the public) and bank reserves.
discount rate- the interest rate that the Fed charges banks when they borrow reserves. This is the only interest rate that the Fed directly sets. if the Fed lowers the discount rate, it tends to encourage banks to borrow reserves, enabling them to extend more loans, increase demand deposits and thus increase the money supply.
Federal Funds market- a market where banks in need of reserves can borrow them from other banks (who have an excess).
Federal Funds Rate- the interest rate banks charge one another for borrowed reserves. It reflects the discount rate, but need not be the same. As is true of all interest rates, it is determined in a market (the Federal Funds market, to be exact).
U. S. Treasury- the government agency responsible for handling the Federal government's finances, including borrowing money (by selling bonds). It is not part of the Federal Reserve System.
bank run- when people go to their bank to withdraw money due to fear that their deposits are not secure.
Federal Deposit Insurance Corporation (FDIC)- a government corporation established to insure bank deposits and instill confidence in the banking system, preventing bank runs. Unlike a private insurance company, premiums paid by a financial institution to the FDIC do not reflect the risks of insuring the institution, thus producing a moral hazard problem.
moral hazard problem- when a person with insurance behaves recklessly, assuming that the insurance will cover the results of his decisions. In the banking industry, the moral hazard problem results in financial institutions making riskier loans than they otherwise might (or than they would if the premiums on deposit insurance reflected risk). This is why so many banking institutions went bankrupt in the 1980's.
Chapter Thirteen
monetary policy- using the supply of money issued and in circulation to influence GDP, interest rates, inflation and unemployment.
demand for money- the (inverse) relationship between the nominal interest rate and the amount of wealth people want to hold as money assets (rather than other kinds of liquid assets). Graphically, money demand is shown as a downward-sloping curve.
supply of money- the stock or quantity of money in the economy, set by the Fed. Since the amount of money is not dependent on interest rates, a graphical representation of the relationship between nominal interest rates and the quantity of money would be a vertical line at the amount of money set by the Fed.
expansionary monetary policy- an increase in the growth rate of the money supply, usually intended to increase aggregate demand. As the money supply is increased, nominal interest rates will fall to equate the quantity demanded with the higher quantity supplied. As people increase their money holdings, deposits in banks increase (remember also that an increase in bank deposits is part of the process of increasing the money supply- that's the form it takes). As banks lend these new deposits, the supply of loanable funds increases, reducing the real interest rate. The reduction in the real interest rate will increase aggregate demand.
*effects of lower interest rates- Lower interest rates increase aggregate demand by making borrowing more attractive thus increasing spending (for businesses and households). In addition, investors will respond to the lower U.S. interest rates by investing more in other countries, thus lowering the value of the dollar (which also increases aggregate demand). Further, as the interest rate falls, the value of non-money assets increases, thus increasing people's wealth (further increasing aggregate demand).
restrictive monetary policy- reductions in the growth rate of the money supply to restrict the growth of the economy (often to avoid inflation).
quantity theory of money- the theory that increases in the money supply will affect economic variables, such as the price level (and, perhaps, the level of real output). Long term, the theory predicts that the effects of faster money supply growth will be mostly on the price level.
velocity of money- the number of times each dollar in existence changes hands in a year.
Equation of Exchange-the equation relating the money supply to other economic variables. Specifically, MxV=GDP=PxQ where M is the money supply, V is velocity, P is the price level, and Q is real output or real GDP.
In terms of growth rates, [% change in M] + [% change in V] = [% change in P] + [% change in Q]
where [% change in M] is the growth rate of the money supply,
[% change inV] is the growth rate of velocity,
[% change in P] is the inflation rate, and
[ % change in Q] is the growth rate of real GDP or the growth rate of real output.
*quantity equation of money- another name for the equation of exchange
*time and the effects of increasing growth in the money supply- Most of the time, velocity changes is very little (if at all) from one year to another. In the very short run (how long that is depends on the economy), the first effects of an increase in the money supply growth rate will be a decrease in [% change in V]. Very soon, velocity will return to its normal level (% change in V will be zero). With time (perhaps a year or more later), the effects of the increase in the money supply growth rate will be felt on [% change in Q] (growth in real output will rise, and unemployment will fall). Eventually (18 months to three years after the initial change in money growth), the growth in real output will return to zero (or may even become negative), as [% change in P] grows (resulting in inflation).
escalator clause- contract provision that raises wages and salaries to keep up with inflation automatically. Also called COLAs for cost of living adjustments.
*using monetary policy to keep interest rates low- while expansionary monetary policy may reduce interest rates in the short run, eventually higher inflation rates will push interest rates up. Thus, long term reductions in interest rates will not be possible through monetary expansion.
*overall conclusions about monetary policy- The effects of monetary policy on real output and unemployment are temporary. The time it takes for these effects to be felt and to vanish depends on the state of the economy when the monetary policy is begun. Persistent money supply growth will lead, in the long run, to inflation. Money interest rates and inflation are directly related. Since it takes time for monetary policy changes to be felt in the economy, there are time delays (often greater than a year) between a policy and its effects on output and even longer time delays before the effect is seen on inflation.
activist - the view that monetary and fiscal policy can be used to fine tune and stabilize the economy.
nonactivist - the view that the economy would be more stable is the monetary and fiscal policy makers followed consistent policy rules instead of changing policy as conditions change.
Monetarist - theory "school" based on the observation that fluctuations in the money supply are a major cause of changes in GDP and that fast growth of the money supply is a major cause of inflation.
*index of leading indicators- a statistic that tends to predict the direction of the economy. It involves such things as new factory orders, M2, average number of hours worked per week, and stock prices.
recognition lag- the length of time it takes policy makers to realize a policy change is needed.
administrative lag- the time it takes for a policy to be implemented after its need is recognized.
impact lag- the length of time it takes for a policy to have its desired effect after it is implemented.
adaptive expectations-the view that private sector decision makers will base decisions on the past, with the most recent past having the biggest influence on current decisions.
rational expectations-the view that changes in government spending will affect private spending, as those in the private sector anticipate higher or lower future taxes. The implication is that fiscal policy will be largely ineffective.
policy-ineffectiveness theorem- idea that decision makers will anticipate the effects of any policy. In so doing, they will counteract its effects.
consensus view on policy- Regarding policy, economists are in agreement that (1) a monetary policy that has the goal of keeping inflation low will be workable if pursued long-term, (2) increasing aggregate demand to reduce unemployment will not work long-term, (3) large changes in monetary or fiscal policy will greatly disrupt the economy, even if the intentions are noble, and (4) fiscal policy will not work to stabilize the economy
Chapter Fourteen
*government purchases- spending by government on the purchase of goods and services, not including transfer payments.
*transfer payments- payments by the government to individuals, businesses or others which are not due to the purchase of any good or service. Examples include welfare programs, Social Security payments, pension payments, and similar programs.
*government spending-the total spent by the government, including government purchases and transfer payments. This spending must be paid for by tax revenues or borrowing (selling bonds and Treasury notes).
fiscal policy- using government taxing and spending to affect GDP, inflation and unemployment.
balanced (government) budget-a situation in which the government is taking in exactly the same amount of tax revenue as it is spending
(government) budget deficit-a situation in which the government raises less in tax revenues than it spends.
(government) budget surplus-a situation in which the government raises more in tax revenues than it spends.
*national debt or government debt- the sum of the government budget surpluses and deficits; the total owed by the government
discretionary fiscal policy- changes in tax laws or spending programs that affect government purchases or tax revenues.
Keynesian model-the view of the economy as relationships between expenditure and income. These relationships are that consumption depends on income, while income depends on consumption, government spending, and investment. The Keynesian view is that increased government spending will put income in the hands of the public, which would stimulate additional consumption spending by individuals and investment by businesses, thus increasing aggregate demand and GDP. The Keynesian model is responsible for the acceptance on the part of policy makers that the government budget can (and, in the opinion of some, should) be used to influence the economy.
autonomous spending- spending that occurs regardless of income
induced spending- spending (primarily on consumption) that depends on the level of income in the economy.
permanent income hypothesis- consumption spending by households depends on how households view their long term income. Consumption spending will increase only if households expect income to rise permanently; wealth (a long-term measure of accumulated income) will affect consumption whereas temporary fluctuations in short-term income will not . Thus, the consumption component of aggregate demand is fairly stable (at least as far as the effect of income).
expansionary fiscal policy- increase in government spending or reduction in taxes intended to increase the budget deficit and cause the economy to grow.
restrictive fiscal policy- reductions in government spending or increases in taxes to restrict the growth of the economy (often to avoid inflation).
countercyclical policy- a policy that attempts to stabilize the economy by offsetting whatever changes the economy is experiencing naturally.
automatic stabilizers-programs that will increase government spending (or reduce taxes) during recessions and reduce government spending (or increase taxes) during growth periods in the economy, without special action by government officials. They are automatically countercyclical. These programs include unemployment insurance, corporate taxes and the progressive income tax.
crowding out effect- when reductions in private consumer and business spending occur because government deficits raise real interest rates.
new classical economics- the controversial school of thought that markets tend to long run equilibrium without government action. The implication is that fiscal policy will be largely ineffective, due to Ricardian equivalence.
*Ricardian equivalence- the idea that government deficits will not affect the economy, since people will expect higher future taxes due to the government's deficit spending. Government deficits have no effect on aggregate demand or on the interest rate.
*Ricardian equivalence with higher government spending- If a deficit is used to finance higher government spending, people will reduce current consumption just as much as if higher taxes were applied immediately (they do this in order to stabilize their standard of living and to be able to pay the higher taxes they will face in the future). Thus, the government spending will not move the aggregate demand curve. The higher savings of people will prevent the government's borrowing from raising interest rates. In all, the deficit has no effect.
*Ricardian equivalence with a tax cut- If a deficit is used to finance lower taxes, people will maintain their current consumption and save the tax cut money (they do this in order to stabilize their standard of living and to be able to pay the higher taxes they will face in the future). Thus, the tax cut will not move the aggregate demand curve. The higher savings of people will prevent the government's borrowing from raising interest rates. In all, the deficit has no effect.
*marginal tax rate- the additional tax that must be paid divided by additional income (see chap. 6).
supply side economics- economic view that marginal tax rates strongly influence aggregate supply. Lower marginal tax rates move both the long run and the short run aggregate supply curves to the right by increasing the incentives to provide labor and capital to resource markets. The major effects of changing marginal tax rates will be seen in the long run.
Chapter Fifteen
comparative advantage-the ability to produce at lowest opportunity cost; the basis for trade and specialization.
absolute advantage-the ability to produce a greater amount with the same resources
*production possibilities curve (PPC)-a graphical depiction of all of the possible and (productive) efficient combinations of two goods which can be produced by an individual or group. Shows the maximum amounts of two goods that can be produced with a given set of resources and technology. Combinations (amounts) on the curve are efficient. Those below the curve are not.
tariff-a tax on imported goods.
import quota- a restriction on the quantity of goods that can be imported.
voluntary export restrictions (VER)- a sort of self-imposed quota.
dumping- selling a good in a foreign country for a lower price than it is sold domestically.
foreign exchange market- market in which money of different countries is bought and sold to enable international trade.
exchange rate- the price of one country's money in terms of another country's money.
appreciation-becoming more valuable (higher value or price).
depreciation-becoming less valuable (lower value or price).
flexible exchange rates- exchange rates that are determined in a foreign exchange market rather than being set by law. Also called "floating exchange rates."
fixed exchange rate- an exchange rate that is set by laws rather than in the foreign exchange market.
pegged exchange rate- exchange rate that is maintained at a particular level or in a particular range through use of monetary or fiscal policy.
balance of payments- a way to measure imports and exports of goods, services and loans.
current account- the flow of money used to pay for goods and services exchanged internationally.
balance of (merchandise) trade- difference between the value of goods exported and the value of goods imported.
balance on goods and services- difference between the value of goods and services exported and the value of goods and services imported.
balance on current account- overall, the flow of money coming into the country to pay for exports and as returns on foreign investments minus the flow of money going out of the country to pay for imports and as payments to foreign investors.
*current account deficit- on net, money is leaving the country to pay for imported goods and services and investments. Also called a "trade deficit."
*current account surplus -on net, money is entering the country as other countries pay for goods and services being shipped to them. Also called a "trade surplus."
(balance on) capital account- the flow of money lent internationally (and capital purchases); the flow of international credit.
*capital account deficit-money is leaving the country as it is lent internationally.
*capital account surplus -money is entering the country as other countries lend to people or governments in this country.
International Monetary Fund (IMF)- an international bank set up to facilitate trade. It makes loans to central banks of various nations.