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versus Movement along a Supply Curve MyLab Economics Concept Check A supply curve shows the relationship between the quantity of a good or service supplied by a firm and the price that good or service brings in the market. Higher prices are likely to lead to an increase in quantity supplied, ceteris paribus. Remember:... |
new relationship between quantity supplied of a good and the price of that good. The shift is brought about by a change in the original conditions. M03_CASE3826_13_GE_C03.indd 85 17/04/19 12:10 AM 86 PART I Introduction to Economics ▸ FIGURE 3.7 Shift of the Supply Curve for Soybeans Following Development of a New See... |
hels. At this price, the total amount supplied in the market is 30,000 + 10,000 + 25,000, or 65,000 bushels. At a price of $1.75, however, the total amount supplied is only 25,000 bushels (10,000 + 5,000 + 10,000). Thus, the market supply curve is the simple addition of the individual supply curves of all the firms in ... |
of soybeans supplied per year MyLab Economics Concept Check ▴ FIGURE 3.8 Deriving Market Supply from Individual Firm Supply Curves Total supply in the marketplace is the sum of all the amounts supplied by all the firms selling in the market. It is the sum of all the individual quantities supplied at each price. Market... |
�s soybean supply curve shifts to the left, it intersects the price axis at a higher point, meaning that it would take a higher market price to induce Brown to produce any soybeans at all. As with demand, it is important to distinguish between movements along supply curves (changes in quantity supplied) and shifts in s... |
, the supply curve shifts to the right. When firms go out of business, or “exit” the market, the supply curve shifts to the left. market supply The sum of all that is supplied each period by all producers of a single product. 88 PART I Introduction to Economics P 2.00 1.75 ) $ ( Equilibrium point Excess demand 5 shorta... |
quantity supplied has increased from 25,000 to 40,000 bushels per year. When quantity demanded and quantity supplied are equal and there is no further bidding, the process has achieved an equilibrium, a situation in which there is no natural tendency for further adjustment. Graphically, the point of equilibrium is the... |
exceeds the quantity demanded at the current price. As with a shortage, the mechanics of price adjustment in the face of a surplus can differ from market to market. For example, if automobile dealers find themselves with unsold cars in the fall when the new models are coming in, you can expect to see price cuts. Somet... |
to Economics Market Equilibrium with Equations MyLab Economics Concept Check So far we have represented demand and supply using schedules and graphs. Economists also use equations when they work with demand and supply. In empirical work, when we begin to measure the quantitative size of markets, equations prove very u... |
d + (1 d)P In our graphs, we found the equilibrium price and quantity by finding the point of intersection of the supply and demand curves. At what price is the quantity demanded equal to the quantity supplied? To find this, we can simply set Qd equal to Qs (and call it Q), which gives us two equations in two unknowns... |
1.20, there is now a shortage of coffee. If the price were to remain at $1.20, quantity demanded would not change; it would remain at 13.2 billion pounds. However, at that price, quantity supplied would drop to 6.6 billion pounds. At a price of $1.20, quantity demanded is greater than quantity supplied. When excess dem... |
the resulting changes in equilibrium price and quantity. Study the graphs carefully to ensure that you understand them. e c i r P P1 P0 0 e c i r P P1 P0 0 e c i r P P0 P1 0 1. Increase in income: X is a normal good S D1 D0 Q0 Q1 Quantity 4. Decrease in income: X is an inferior good S D0 D1 Q0 Q1 Quantity 7. Decrease ... |
staple product. Over time, these higher prices encouraged more farmers to enter the quinoa market. This shifted the supply curve to the right, helping to moderate the price increases. But quinoa growing turns out to be a tricky affair. Quinoa grows best in high altitudes with cold climates. It thrives on soil fertiliz... |
changes, the curve shifts, or changes position. 7. Market equilibrium exists only when quantity supplied equals quantity demanded at the current price. The equilibrium price is one for which the supply and demand curves intersect, where the quantity supplied is equal to the quantity demanded. M03_CASE3826_13_GE_C03.in... |
cost of imported food items, shifting the supply curve to the left, further raising the equilibrium price level and reducing the equilibrium quantity as shown in Figure (b). Both forces put together have resulted in a simultaneous rise in prices, but what about the net effect on equilibrium quantity? Recent market res... |
and demand, prices reflect what people are willing to pay. If people’s preferences or incomes change, resources will be allocated differently. Consider, for example, an increase in demand—a shift in the market demand curve. Beginning at an equilibrium, households simply begin buying more. At the equilibrium price, qua... |
a product or products by transforming resources, or inputs, into outputs—the products that are sold in the market. Firms are the primary producing units in a market economy. We assume that firms make decisions to try to maximize profits. 3.2 INPUT MARKETS AND OUTPUT MARKETS: THE CIRCULAR FLOW p. 70 4. Households and f... |
When an increase in income causes demand for a good to fall, that good is an inferior good. 12. If a rise in the price of good X causes demand for good Y to increase, the goods are substitutes. If a rise in the price of X causes demand for Y to fall, the goods are complements. 13. Market demand is simply the sum of al... |
or surplus, p. 89 factors of production, p. 71 firm, p. 70 households, p. 70 income, p. 76 inferior goods, p. 76 input or factor markets, p. 71 labor market, p. 71 land market, p. 71 law of demand, p. 74 law of supply, p. 83 market demand, p. 80 market supply, p. 86 movement along a demand curve, p. 80 movement along ... |
MARKETS LEARNING OBJECTIVE: Understand what determines the position and shape of the demand curve and what factors move you along a demand curve and what factors shift the demand curve. 3.1 [Related to the Economics in Practice on p. 77] Some airplane manufacturers offer merchandise such as airplane models at their of... |
forces that shift a supply curve and changes that cause a movement along a supply curve. 4.1 The market for fitness trackers is made up of five firms, and the data in the following table represents each firm’s quantity supplied at various prices. Fill in the column for the quantity supplied in the market, and draw a s... |
space in San Jose (Silicon Valley) was hit hard, with rents per square foot falling. In 2005, the employment numbers from San Jose were rising slowly and rents began to rise again. Assume for simplicity that no new office space was built during the period. d. Before economic reforms were implemented in the countries o... |
other given the goal to reduce tobacco consumption? Illustrate with the help of a graph. 5.4 For each of the following statements, draw a diagram that illustrates the likely effect on the market for eggs. Indicate in each case the impact on equilibrium price and equilibrium quantity. a. The surgeon general warns that ... |
and does not respond to higher tuition fees, demand vouchers will serve only to drive up tuition fees and make private schools better off. Illustrate their point with supply and demand curves. *5.7 Suppose the market demand for pizza is given by Qd = 300 - 20P and the market supply for pizza is given by Qs = 20P - 100... |
in Florida grocery stores. What does this indicate about the market for peaches and the current price of a peach? QUESTION 2 Over the past decade, the price of beef has risen, and consumers have purchased less beef. Analysts have offered various explanations for these trends. Analyst 1, for example, claims that this i... |
both the allocation of resources among producers and the final mix of outputs. 4.1 LEARNING OBJECTIVE Understand how price floors and price ceilings work in the market place. price rationing The process by which the market system allocates goods and services to consumers when quantity demanded exceeds quantity supplie... |
$ ( Sfall 2010 Sspring 2010 B A C D ◂◂ FIGURE 4.1 The Market for Wheat Fires in Russia in the summer of 2010 caused a shift in the world’s supply of wheat to the left, causing the price to increase from $160 per metric ton to $247. The equilibrium moved from C to B. 0 35 40 60 Q Millions of metric tons of wheat MyLab ... |
the rich will continue to buy wheat when the price increases. For anyone to continue to buy wheat at a higher price, his or her enjoyment comes at a higher cost in terms of other goods and services. Even high-income people may decide that their preference for wheat bread over rye is not strong enough to offset the new... |
. It is quite possible that you would not sell it for any amount of money. Does this mean that the market is not working, or that quantity supplied and quantity demanded are not equal? Not at all, it simply means that you are the highest bidder. By turning down all bids, you must be willing to forgo what anybody offers... |
gas pumps, given the large market share of OPEC at the time. Had the market system been allowed to operate, refined gasoline prices would have increased dramatically until quantity supplied was equal to quantity demanded. However, the U.S. government decided that rationing gasoline only to those who were willing and a... |
demanded exceeded the quantity supplied. Because the price system was not allowed to function, an alternative rationing system had to be found to distribute the available supply of gasoline. as early as 5 am. Under this system, gasoline went to those people who were willing to pay the most, but the sacrifice was measu... |
much less, so he gets the gas. In the end, A could pay B for the gas and both would be better off. If A pays B $30 for the gas, A is $5 better off and B is $15 better off. In addition, A does not have to wait in line. Thus, the allocation that results from nonprice rationing involves a net loss of value. Such losses a... |
governments incorporate anti-price gouging provisions into consumer protection acts or emergency management legislation and regulations. In Australia, price gouging is regulated at both the Federal and the State levels through Section 21 on unconscionable conduct in its consumer law.1 However, the law on price gouging... |
ASE3826_13_GE_C04.indd 105 17/04/19 12:12 AM 106 PART I Introduction to Economics In many cases, the high price for tickets is charged not by the original sellers—theater producers or sports teams—but by scalpers, people who buy the tickets in the hope of reselling them for a profit. Stub Hub is one of several companie... |
let’s assume that all seats are the same and that the promoters charge $50 per ticket for all tickets, hoping to keep their concert affordable for their fans. This example is illustrated in Figure 4.4. Supply is represented by a vertical line at 20,000. Changing the price does not change the supply of seats. In the fi... |
most. No matter how good the intentions of private organizations and governments, it is difficult to prevent the price system from operating and to stop people’s willingness to pay from asserting itself. Every time an alternative is tried, the price system seems to sneak in the back door. With favored customers and bl... |
price floor is set above the equilibrium price, the result will be excess supply; quantity supplied will be greater than quantity demanded. The most common example of a price floor is the minimum wage, which is a floor set for the price of labor. Employers (who demand labor) are not permitted under federal law to pay ... |
on foreign goods, in part as a way to help domestic producers. The tools we have learned thus far will show us the effects of tariffs, using the example of a tax on foreign oil. The United States imports a little more than half of the oil it consumes. Of the imports, a substantial portion comes from the Persian Gulf S... |
value of the time spent standing in line. Thus, the tickets are cheaper for people (for example, students) whose time value is lower than they are for high-wage earners, like an investment banker from Goldman Sachs. The true cost of a ticket is $0 plus the opportunity cost of the time spent in line. If the average per... |
demanded (13 million barrels per day) and do- mestic production (7 million barrels per day) is total imports (6 million barrels per day). Now suppose that the government levies a tax of 33⅓ percent on imported oil. Because the import price is $80, this tax rate translates into a tax of $26.64, which increases the pric... |
, then the higher domestic price for oil might not be a negative. In the case of many other goods for which tariffs might be contemplated, reduced consumption and higher prices may well be unwelcome. In 2018, the administration indicated it would put tariffs on foreign steel, another good that the United States imports... |
than $2.50. At a price of $5.00, for example, consumers would still buy 1 million hamburgers. These million hamburgers have a value to their buyers of $5.00 each. If consumers can buy these burgers for only $2.50, they would earn a consumer surplus of $2.50 per burger. Consumer surplus is the difference between the ma... |
significant. The total value of the consumer surplus suggested by the data in Figure 4.6(a) is roughly equal to the area of the shaded triangle in Figure 4.6(b). To understand why this is so, think about offering hamburgers to consumers at successively lower prices. If the good were actually sold for $2.50, those near... |
Surplus As illustrated in Figure 4.7(a), some producers are willing to produce hamburgers for a price of $0.75 each. Because they are paid $2.50, they earn a producer surplus equal to $1.75. Other producers are willing to supply hamburgers at prices less than $2.50, and they also earn producers surplus. Because the ma... |
Lab Economics Concept Check Millions of hamburgers per month ◂▴ FIGURE 4.9 Deadweight Loss Figure 4.9(a) shows the consequences of producing 4 million hamburgers per month instead of 7 million hamburgers per month. Total producer and consumer surplus is reduced by the area of triangle ABC shaded in yellow. This is call... |
of point A in Figure 4.9(b). Potential Causes of Deadweight Loss from Under- and Overproduction MyLab Economics Concept Check Most of the next few chapters will discuss perfectly competitive markets in which prices are determined by the free interaction of supply and demand. As you will see, when supply and demand int... |
, black markets, and side payments often end up less “fair” than the free market. A supply curve shows the relationship between the quantity producers are willing to supply to the market and the price of a good. 4.2 SUPPLY AND DEMAND ANALYSIS: TARIFFS (TAX) p. 108 4. The basic logic of supply and demand is a powerful t... |
Trade (GDT) Price Index was 514, down from 880 a year before. This was primarily due to the fact that supply had increased during this period. c. In 2017, the global demand for solar photovoltaic (PV) power was about 85 gigawatts. Its contribution to total electricity generation grew from 0.01 percent in 2004 to 0.79 ... |
of cherry trees to lose their flowers. Which way will the price of cherries go? c. In 2018, the United Kingdom witnessed one of the hottest summers according to the Met Office. The average temperature was 15.8°C (60.4°F), similar to what it was in 1976, 2003, and 2006. With Britain in a prolonged period of heat, mobil... |
PART I Introduction to Economics 1.12 The following graph represents the market for wheat. The equilibrium price is $20 per bushel and the equilibrium quantity is 14 million bushels. Price of wheat (bushel) 30 20 10 0 Supply 2 4 68 1 0 12 14 16 18 20 22 24 26 Demand much will be imported? Illustrate total imports on y... |
S. Quantity Demanded U.S. Quantity Supplied 55 60 65 70 75 26 24 22 20 18 14 16 18 20 22 a. On graph paper, draw the supply and demand curves for the United States. b. With free trade in oil, what price will Americans pay for their oil? What quantity will Americans buy? How much of this will be supplied by American pro... |
to tax laws. In 2018, the company began its appeal in London to reverse the decision and reinstate its operating license. Explain how the ban on Uber affects consumer surplus and producer surplus in the city, and show these changes graphically. 3.4 The following graph represents the market for DVDs. Price of DVDs 7 6 ... |
corporations are high. On the other hand, if the macroeconomy is in a slump, new jobs are scarce, incomes are not growing well, and profits are low. Students who entered the job market in the boom of the late 1990s in the United States, on average, had an easier time finding a job than did those who entered in the rec... |
seem “sticky.” Sticky prices are prices that do not always adjust rapidly to maintain equality between quantity supplied and quantity demanded. Microeconomists do not expect to see the quantity of apples supplied exceeding the quantity of apples demanded because the price of apples is not sticky. On the other hand, ma... |
the economy moves from a peak down to a trough, through point B, the economy is in recession. Time MyLab Economics Concept Check M05_CASE3826_13_GE_C05.indd 119 17/04/19 12:04 PM 120 PART II Concepts and Problems in Macroeconomics expansion or boom The period in the business cycle from a trough up to a peak during whi... |
actual business cycles in the United States between 1900 and 2017. Although many business cycles have occurred in the last 118 years, each is unique. The economy is not so simple that it has regular cycles. The periods of the Great Depression and World War I and II show the largest fluctuations in Figure 5.2, although... |
jobs and look for something better. Until they find a new job, they will be unemployed. At any time, some firms may go bankrupt because of competition from rivals, bad management, or bad luck. Employees of such firms typically are not able to find new jobs immediately, and while they are looking for work, they will be... |
and mining equipment. In December 2017 the inflation rate in Venezuela reached 4,000 percent, and the country experienced numerous street protests against the policies of President Nicolas Maduro. In January 2018, prices in Venezuela were doubling every 35 days. Very high inflation can destabilize economies and govern... |
The Circular Flow of Payments Households receive income from firms and the government, purchase goods and services from firms, and pay taxes to the government. They also purchase foreign-made goods and services (imports). Firms receive payments from households and the government for goods and services; they pay wages,... |
_CASE3826_13_GE_C05.indd 122 17/04/19 12:04 PM CHAPTER 5 Introduction to Macroeconomics 123 of households. Saving by households is sometimes termed a “leakage” from the circular flow because it withdraws income, or current purchasing power, from the system. Firms sell goods and services to households and the government... |
iPod, buys parts from a number of other firms. Firms supply to the goods-and-services market. Households, the government, and firms demand from this market. Finally, the rest of the world buys from and sells to the goods-and- services market. The United States imports hundreds of billions of dollars’ worth of automobi... |
to share in the firm’s profits. dividend The portion of a firm’s profits that the firm pays out each period to its shareholders. fiscal policy The government’s spending and taxing policies. monetary policy The tools used by the Federal Reserve to control short term interest rates. earning income in the form of dividen... |
this amount plus something extra at some future date, or I agree to buy part ownership in your firm, and you agree to give me a share of the firm’s future profits. A critical variable in the money market is the interest rate. Although we sometimes talk as if there is only one interest rate, there is never just one int... |
. 1A capital gain occurs whenever the value of an asset increases. If you bought a stock for $1,000 and it is now worth $1,500, you have earned a capital gain of $500. A capital gain is “realized” when you sell the asset. Until you sell, the capital gain is accrued but not realized. M05_CASE3826_13_GE_C05.indd 124 17/0... |
the history of economics, The General Theory of Employment, Interest and Money, by John Maynard Keynes, was published in 1936. Building on what was already understood about markets and their behavior, Keynes set out to construct a theory that would explain the confusing economic events of his time. Much of macroeconom... |
–1982, the United States experienced a 5.3 LEARNING OBJECTIVE Summarize the macroeconomic history of the United States between 1929 and 1970. Great Depression The period of severe economic contraction and high unemployment that began in 1929 and continued throughout the 1930s. fine-tuning The phrase used by Walter Hell... |
colors and hair shorn in strange new ways and shawls beyond the dreams of Castile. From The Grapes of Wrath The moving, questing people were migrants now. Those families who had lived on a little piece of land, who had lived and died on forty acres, had eaten or starved on the produce of forty acres, had now the whole... |
Keynesian model and the “conventional wisdom” of the 1960s was lost. Although we are now almost fifty years past the 1970s, the discipline of macroeconomics is still in flux and there is no agreed-upon view of how the macroeconomy works. Many important issues have yet to be resolved. This makes macroeconomics hard to ... |
–2009 II. 2 Regarding the 1980 II–1982 IV period, output rose in 1980 IV and 1981 I before falling again in 1981 II. Given this fact, one possibility would be to treat the 1980 II–1982 IV period as if it included two separate recessionary periods: 1980 II–1980 III and 1981 I–1982 IV. Because the expansion was so short-... |
of 9.9 percent in the fourth quarter of 2009. By 2015 the unemployment rate was 5.5 percent. Figure 5.6 plots the inflation rate for 1970 I–2017 IV. The two high inflation periods are 1973 IV–1975 IV and 1979 I–1981 IV, which are shaded. In the first high inflation period, the inflation rate peaked at 11.1 percent in ... |
and monetary policy (control of short term interest rates). 5.1 MACROECONOMIC CONCERNS p. 119 2. The three topics of primary concern to macroeconomists are the growth rate of aggregate output, the level of unemployment, and increases in the overall price level, or inflation. 5.2 THE COMPONENTS OF THE MACROECONOMY p. 1... |
IVE: Describe the three primary concerns of macroeconomics. 1.1 Define inflation. Assume that you live in a simple econ- omy in which only three goods are produced and traded: cashews, pecans, and almonds. Suppose that on January 1, 2018, cashews sold for $12.50 per pound, pecans were $4.00 per pound, and almonds were ... |
of a similar income category). Is economic growth strong or weak? Is unemployment high or low? Is inflation excessive or not? How have economic growth, unemployment, and inflation evolved over the past few years? 1.5 Explain briefly how macroeconomics is different from microeconomics. How can macroeconomists use micro... |
in 2016 to stimulate growth in the economy? Did any of these proposed policies follow the policies proposed by John Maynard Keynes? If so, which policies and from which candidates? 3.3 Assume that the demand for flight attendants increases significantly as a result of an increase in demand for air travel. Explain what... |
that macroeconomics is concerned with aggregate output, unemployment, and inflation. In this chapter, we discuss the measurement of aggregate output and inflation. In the next chapter, we discuss the measurement of unemployment. Accurate measures of these variables are critical for understanding the economy. Without g... |
the national income and product accounts represent or organize the economy and the sizes of the various pieces of the economy. Gross Domestic Product The key concept in the national income and product accounts is gross domestic product (GDP). GDP is the total market value of a country’s output. It is the market value ... |
as they entered that stage. Value added is illustrated in Table 6.1. The four stages of the production of a gallon of gasoline are: (1) oil drilling, (2) refining, (3) shipping, and (4) retail sale. In the first stage, value added is the value of the crude oil. In the second stage, the refiner purchases the oil from t... |
at the retail level. Adding the total values of sales at each stage of production (+3.00 + +3.30 + +3.60 + +4.00 = +13.90) would significantly overestimate the value of the gallon of gasoline. In calculating GDP, we can sum up the value added at each stage of production or we can take the value of final sales. We do n... |
GDP. However, the output produced by for- eigners working in the United States is counted in U.S. GDP because the output is produced within the United States. Also, profits earned in the United States by foreign-owned companies are counted in U.S. GDP. CHAPTER 6 Measuring National Output and National Income 133 gallon... |
and bonds for money (or for other stocks and bonds), which do not involve current production, and fees for performing such exchanges, which do. Exclusion of Output Produced Abroad by Domestically Owned Factors of Production MyLab Economics Concept Check GDP is the value of output produced by factors of production loca... |
the profits from the plant are not. The profits from the plant are counted in Japanese GNP because this is output produced by Japanese-owned factors of production (Japanese capital in this case). The profits, however, are not counted in Japanese GDP because they were not earned in Japan. 6.2 LEARNING OBJECTIVE Explain... |
world. There are also four main categories of expenditure: ■■ Personal consumption expenditures (C): household spending on consumer goods ■■ Gross private domestic investment (I a): spending by firms and households on new capital, that is, plant, equipment, inventory, and new residential structures1. ■■ Government con... |
, jewelry, and real estate with 85 offices in over 43 countries. In 2017, seven out of the top-notch ten art works were sold at this British auction house. Each item is simultaneously bidden for via a live platform, online, and through phone orders. In 2017, the auction art sales at Christie’s broke its own worldwide s... |
capital—housing, plants, equipment, and inventory. The economic use of the term is in contrast to its everyday use, where investment often refers to purchases of stocks, bonds, or mutual funds. Total investment in capital by the private sector is called gross private domestic investment (I a). Expenditures by firms fo... |
Nonresidential Residential Change in business inventories Government consumption and gross investment (G) Federal State and local Net exports (EX - IM) Exports (EX) Imports (IM) 13,395.5 3,212.8 3,353.8 −571.6 1,473.8 2,821.5 9,100.2 2,449.6 747.6 15.7 1,260.7 2,093.2 2,344.0 2,915.6 69.1 16.6 17.3 −2.9 Gross domestic... |
that some capital wears out and must be replaced. Net investment is equal to gross investment minus depreciation. Net investment is a measure of how much the stock of capital changes during a period. Positive net investment means that the amount of new capital produced exceeds the amount that wears out, and negative n... |
made in exchange for any goods or services. Because interest payments on the government debt are also counted as transfers, they are excluded from GDP on the grounds that they are not payments for current goods or services. As Table 6.2 shows, government consumption and gross investment accounted for $3,353.8 billion,... |
machines enter the workplace. Interestingly, the estimates of these economists made their way into the depreciation schedules used by the government in constructing the NIPA accounts, showing us the practical importance of macroeconomics. CRITICAL THINKING 1. If a computer is initially worth $1,000 and loses half of i... |
) The difference between exports (sales to foreigners of U.S. produced goods and services) and imports (U.S. purchases of goods and services from abroad). The figure can be positive or negative. M06_CASE3826_13_GE_C06.indd 137 17/04/19 12:16 AM gross investment The total value of all newly produced capital goods (plant... |
Economics Concept Check We now turn to calculating GDP using the income approach, which looks at GDP in terms of who receives it as income rather than as who purchases it. We begin with the concept of national income, which is defined in Table 6.3. National income is the sum of eight income items. Compensation of empl... |
,386.0 743.9 2,164.6 586.4 1,268.8 161.8 −11.0 62.1 8.3 4.5 13.0 3.5 7.6 1.0 −0.1 Source: U.S. Bureau of Economic Analysis, March 28, 2018. M06_CASE3826_13_GE_C06.indd 138 17/04/19 12:16 AM CHAPTER 6 Measuring National Output and National Income 139 TABLE 6.4 GDP, GNP, NNP, and National Income, 2017 GDP Plus: Receipts ... |
If the government were completely accurate in its data collection, the statistical discrepancy would be zero. The data collection, however, is not perfect, and the statistical discrepancy is the measurement error in each period. Table 6.4 shows that in 2017, this error was –$35.0 billion, which is small compared to na... |
or save. personal saving The amount of disposable income that is left after total personal spending in a given period. personal saving rate The percentage of disposable personal income that is saved. If the personal saving rate is low, households are spending a large amount relative to their incomes; if it is high, ho... |
components of GDP valued at their current prices. In most applications in macroeconomics, however, nominal GDP is not what we are after. It is not a good measure of aggregate output over time. Why? Assume that there is only one good—say, pizza, which is the same quality year after year. In each year 1 and 2, one hundr... |
-half, onefourth, and one-fourth. If instead the final exam counts for 80 percent of the grade and the other two tests for 10 percent each, the weights are 0.8, 0.1, and 0.1. The more important an item is in a group, the larger its weight. M06_CASE3826_13_GE_C06.indd 140 17/04/19 12:16 AM GDP: One of the Great Inventio... |
, and with it the growing role of government in the economy, emphasized the need for such measures and led to the development of a comprehensive set of national income accounts. Richard T. Froyen In response to this need in the 1930s, the Department of Commerce commissioned Nobel laureate Simon Kuznets of the National ... |
A in year 1 ($0.50), which is $3.00. Similarly, nominal output in year 1 is 7 * +0.30 = +2.10 for good B and 10 * +0.70 = +7.00 for good C. The sum of these three amounts, $12.10 in column 5, is nominal GDP in year 1 in this simple economy. Nominal GDP in year 2—calculated by using the year 2 quantities and the year 2... |
the same in year 2, because year 2 is the base year. Real GDP has increased from $18.40 to $19.20, an increase of 4.3 percent. This example shows that growth rates can be sensitive to the choice of the base year—24.8 percent using year 1 prices as weights and 4.3 percent using year 2 prices as weights. For many policy... |
way is to take the average of the two numbers, which is 14.55 percent. What the BEA does is to take the geometric average, which for the current example is 14.09 percent.4 These two averages (14.55 percent and 14.09 percent) are quite close, and the use of either would give similar results. The point here is not that ... |
price level changes, we need to weight the individual prices in some way. Is it getting more expensive to live in this economy or less expensive? In this example that clearly depends on how people spend their incomes. So, the obvious weights to use are the quantities produced, but which quantities—those of year 1 or y... |
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