Unit 3: Macroeconomics: The Big Picture Chpt. 6: Key Terms Economic aggregates (p.142) – an economic measure that summarizes data across different markets for goods, services, workers, and assets Business cycle (p.144) – the short-run alternation between economic downturns, known as recessions, and economic upturns, known as expansions Depression (p.144) - a very deep and prolonged downturn Recessions (p.144) - a period when aggregate output is below potential output Expansions (p.144) - a period when output and employment are rising; also referred to as a recovery Employment (p.145) – the number of people currently employed for pay in the economy Unemployment (p.145) – the number of people who are actively looking for work but aren’t currently employed (unemployed under six months) Labor force (p.145) - the number of people who are either actively employed for pay or unemployed and actively looking for work; the sum of employment and unemployment Discouraged workers (p.145) - considered anyone who has been unemployed longer than 6 months; defined as - nonworking people who are capable of working but have given up looking for a job because they believe no jobs are available Underemployment (p.146) - the number of people who work during a recession but receive lower wages than they would during an expansion due to fewer number of hours worked, lower-paying jobs, or both Unemployment rate (p.146) – the percentage of the total number of people in the labor force who are unemployed. It is calculated as: unemployment rate = unemployment / (unemployment + employment Aggregate output (p.146) – the economy’s total production of final goods and services for a given time period, usually a year. Real GDP is the numerical measure of aggregate output typically used by economists Stabilization policy (p.148) – policy efforts undertaken to reduce the severity of recessions and to rein in excessively strong expansions. There are two main tools of stabilization policy: monetary policy and fiscal policy Monetary policy (p.148) – a type of stabilization policy that involves changes in the quantity of money in circulation or in the interest rate, or both Fiscal policy (p.148) – a type of stabilization policy that involves the use of changes in taxation, government transfers, or government purchases of goods and services Secular long-run growth (p.149) – the sustained upward trend in aggregate output over several decades; also referred to as long-run growth Nominal (p.151) – refers to a measure or quantity that has not been adjusted for changes in prices over time Real (p.151) – refers to a measure or quantity that has been adjusted for changes in prices over time Aggregate price level (p.151) – the overall price level for final goods and services in the economy Inflation (p.151) - a rising aggregate price level Deflation (p.151) – a failing aggregate price level Price stability (p.152) – a low but positive rate of inflation targeted by most central banks Inflation rate (p.152, 178) – the percent change per year in a price index – typically the consumer price index. The inflation rate is positive when the aggregate price level is raising (inflation) and negative when the aggregate price level is falling (deflation) Closed economy (p.153) – an economy that does not trade goods, services, or assets with other countries Open economy (p.154) – an economy that trades goods, services, and assets with other countries Open-economy macroeconomics (p.154) – the study of those aspects of macroeconomics that are affected by movements of goods, services, and assets across national boundaries Exchange rate (p.154) – the price of one currency in terms of another; determined by the foreign exchange market. The nominal exchange rate is unadjusted for international differences in price levels; the real exchange rate is adjusted of those differences 2 Trade balance (p.154) – the difference between the value of the goods and services a country sells to other countries and the value of the goods and services it buys from other countries Capital flows (p.155) – international movement of financial assets Chpt. 7: Key Terms National income and product accounts (national accounts) (p.160) – an accounting of consumer spending, sales of producers, business investment spending, and other flows of money between different sectors of the economy; also referred to as national accounts. Calculated by the Bureau of economic Analysis Consumer spending (p.160) - household spending on goods and services produced by domestic and foreign firms Stock (p.161) - a share in the ownership of a company held by a shareholder Bond (p.161) – a legal document issued by a corporation or government promising the repayment of a loan, usually with interest Government transfers (p.162) – payments by the government to individuals for which no good or service is provided in return Disposable income (p.162) – income plus government transfers minus taxes; the total amount of household income available to use for consumption and saving Private savings (p.162) – disposable income minus consumer spending; disposable income that is not spent on consumption Financial markets (p.162) – the banking, stock, and bond markets, which channel private savings and foreign lending into investment spending, government borrowing, and foreign borrowing Government borrowing (p.162) – funds borrowed by the government in financial markets Government purchases of goods and services (p.162) – government expenditures on goods and services Exports (p.162) – goods and services sold to residents of other countries Imports (p.162) – goods and services purchased from residents of other countries 3 Investment spending (p.162) – spending on productive physical capital, such as machinery and construction of structures, and on changes to inventories GDP Deflator (p.179) – for a given year, 100 times the ratio of nominal GDP to real GDP in that year Intermediate goods and services (p.163) - goods and services, bought from one firm by another firm that is inputs for production of final goods and services Gross domestic product (GDP) (p.163) – the total value of all final goods and services produced in the economy during a given year Aggregate spending (p.163) – the sum of consumer spending, investment spending, government purchases, and exports minus imports. It is the total spending on domestically produced final goods and services in the economy Value added (p.165) – (of a producer): the value of sales minus the value of input purchases Net exports (p.168) – the differences between the value of exports and the value of imports. A positive value for net exports indicates that a country is a net exporter of goods and services; a negative value indicates that a country is a net importer of goods and services Real GDP (p.170) – the value of final goods services produced in the economy during the year; calculated using a price of a selected base year Nominal GDP (p.170) – the value of all final goods and services produced in the economy during the year, calculated using the prices current in the year in which the output is produced GDP per capita (p.171) – GDP divided by the size of the population; equivalent to the average GDP per person Market basket (p.177) – a hypothetical set of consumer purchases of goods and services, used to measure changes in the overall price level Price index (p.177) - a measure of the overall price level; it measures the cost of purchasing a given market basket in a given year, where that cost is normalized so that it is equal to 100 in the selected base year Consumer Price Index (CPI) (p.178) – a measure of the cost of a market basket intended to represent the consumption of a typical urban American family of four. It is the most commonly used measure of prices in the United States 4 Producer Price Index (PPI) (p.179) – a measure of the cost of a typical basket of goods and services purchased by producers. Because these commodity prices respond quickly to changes in demand, the PPO is often regarded as a leading indicator of changes in the inflation rate Final goods and services (p.163) – goods and services sold to the final, or end, user (Ex. food, gasoline to consumers, medication to patients, etc.) Chpt. 8: Key Terms Rule of 70 (p.189) – a formula that states that the time it takes a variable growing at some annual rate to double is approximately 70 divided by that variable’s annual growth rate Labor productivity (p.191) – output per worker; also referred to as simply productivity; increases in labor productivity are the only source of long-run economic growth Productivity (p.191) - output per worker; aka labor productivity Physical capital (p.192) – human-made physical resources, such as buildings and machines that are used in production Human capital (p.192) – the improvement in labor created by the education and knowledge embodied in the workforce Technology (p.192) - the technical means for the production of goods and services Aggregate production function (p.192) – a hypothetical function that describes how productivity (real GDP per worker) depends on the quantities of physical capital per worker and human capital per worker as well as the state of technology. It has the general form: Y /L = f(K/L, H/L, T) Diminishing returns to physical capital (p.193) – property of an aggregate production function whereby each successive increase in the amount of physical capital, holding amount of human capital and the state of technology fixed, leads to a smaller increase in productivity Growth accounting (p.195) – an estimation of the contribution to economic growth of each of the major factors (physical and human capital, labor, and technology) in the aggregate production function. Most growth accounting finds that increases in total factor productivity are central to a country’s economic growth. 5 Total factor productivity (p.196) – the total amount of output that can be achieved with a given amount of the factor inputs physical capital, human capital, and labor. Increases in total factor productivity are central to economic growth Infrastructure (p.200) – physical capital, such as roads, power lines, ports, and information networks, that provides the foundation for economic activity Research and development (p.200) – spending to create and implement new technologies Convergence hypothesis (p.203) – a theory of economic growth that holds that international differences in real GDP per capita tend to narrow over time because countries with low GDP per capita generally have higher growth rates Chpt. 15: Key Terms Job search (p.370) – the act of looking for employment Frictional unemployment (p.370) – unemployment due to time spent searching for a job. Because this type of unemployment can occur even when jobs exist for all of the unemployed, it does not necessarily signal a labor surplus. Structural unemployment (p.371) – unemployment that results when there are more people seeking jobs in a labor market than there are jobs available at the current wage rate Efficiency wages (p.373) – wages that employers set above the equilibrium wage rate as an incentive for better performance Natural rate of unemployment (p.373) – the normal unemployment rate arising from frictional and structural unemployment. The actual unemployment rate fluctuates around the natural rate. Cyclical unemployment (p.373) – unemployment resulting from the business cycle; equivalently, the difference between the actual rate of unemployment and the natural rate of unemployment Output gap (p.377) – the percentage difference between the actual level of real GDP and potential output Okun’s law (p.379) – the generally observed relationship between the output gap and the unemployment rate, whereby each additional percentage pint of output gap reduces the unemployment rate by less than 1 percentage point 6 Sticky wages (p.381) – refers to a situation in which employers are slow to change wage rates in the face of a surplus or shortage of labor Menu costs (p.382) – small costs associated with the act of changing prices Short-run Phillips curve (p.383) – a graphical representation of the negative short-run relationship between the unemployment rate and the inflation rate Expected rate of inflation (p.385) – the rate of inflation that employers and workers expect in the near future Non-accelerating inflation rate of unemployment, or NAIRI (p.388) – the unemployment rate at which, other things equal, inflation does not change over time Long-run Phillips curve (p.388) – a graphical representation of the relationship between unemployment and inflation after expectations of inflation have had time to adjust to experience. It is vertical at the natural rate of unemployment Chpt. 16: Key Terms Classical model of the price level (p.395) – a model of the price level in which eh real quantity of money is always at its long-run equilibrium level. This model ignores the distinction between the short run and the long run but is useful for analyzing the case of high inflation Inflation tax (p.398) - the reduction in the value of money held by the public caused by inflation Nominal interest rate (p.401) – the interest rate unadjusted for inflation Real interest rate (p.401) – the interest rate adjusted for inflation, equal to the nominal interest rate minus the inflation rate Fisher effect (p.402) - the principle by which an increase in expected inflation drives up the nominal interest rate, leaving the expected real interest rate unchanged Shoe-leather costs (p.403) – (of inflation); the increased costs associated with making transactions that arise from the public’s efforts to avoid the inflation tax Unit-of-account costs (p.404) – (of inflation); the costs arising from the way inflation makes money a less reliable unit of measurement 7 Price stability (p.405) – a low but positive rate of inflation targeted by most central banks Disinflation (p.408) – the process of lowering inflation that has become embedded in expectations by keeping the unemployment rate above the natural rate for an extended period of time Debt deflation (p.410) – the reduction in aggregate demand arising from the increase in the real burden of outstanding debt caused by deflation; occurs because borrowers, whose real debt rises as a result of deflation, are likely to cut spending sharply and lenders, whose real assets are now more valuable, are less likely to increase spending Zero bound (p.410) – the lower bound of zero on the nominal interest rate Liquidity trap (p.410) – a situation in which the nominal interest rate has hit its lower bond of zero as a result, expansionary monetary policy can no longer be used 8