Weekly Homework 9: Detection of Heteroskedasticity 1. Heteroskedasticity (1 point each) 1) Carefully explain the difference between pure and impure heteroskedasticity and their consequences in OLS. Answer: -Pure heteroskedasticity is caused by the error term of the correctly specified equation. Impure heteroskedasticity is caused by a specification error such as an omitted variable. -Pure heteroskedasticity does not cause bias in the coefficient estimates. However‚ it typically causes
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QZ12016 | | Economic variables whose values are measured in monetary units are called | | | Student Response | A. | dichotomous variables. | B. | nominal variables. | C. | classical variables. | D. | real variables. | | Score: | 0.25/0.25 | | | 2. | QZ12010 | | Suppose the money market‚drawn with the value of money on the vertical axis‚ is in equilibrium. If the money supply increases‚ then at the old value of money there is | | | Student Response | A. |
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What is Elasticity? - Elasticity refers to the degree of responsiveness in supply or demand in relation to changes in price. If a curve is more elastic‚ then small changes in price will cause large changes in quantity consumed. If a curve is less elastic‚ then it will take large changes in price to effect a change in quantity consumed. Graphically‚ elasticity can be represented by the appearance of the supply or demand curve. A more elastic curve will be horizontal‚ and a less elastic curve will
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INCORRECT | | Over the past several years‚ the volume of world trade has: | | | A) | decreased because of increased government regulation of trade through tariffs and quotas | | | B) | decreased because of the decline in incomes brought on by global recession | | | C) | increased because of increased government regulation of trade through tariffs and quotas | | | D) | increased because of improvements in communications and transportation | | | | | | Feedback: Trade has
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Chapter 12 - Money and Banking in the Developing Economy Bimetallic Standard - A monetary system in which a government recognizes coins composed of gold or silver as legal tender. The bimetallic standard backs a unit of currency to a fixed ratio of gold and/or silver. Central Bank - A public institution that manages a state’s currency‚ money supply & interest rates. Central banks also usually oversee the commercial banking system of their respective countries. Recession - A period of slow
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Chicago to Raise Cigarette Tax Source: Chicago Sun Times Accessed: November 23‚ 2013 Posted: November 21‚ 2013 Word Count: 748 Written: November 25‚ 13 Microeconomics The city council in Chicago‚ Illinois is discussing a raise to the tax on cigarettes in an effort to cut the amount of people who start smoking each year. This type of tax is called a Pigouvian tax (meant to limit consumption of a good). Currently‚ the cigarette tax has been stuck at 68 cents a pack since 2006 and the
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Cyclone devastates Australia’s banana crop- Practice IA Introduction to theory: Demand and supply are basic economic theories that can help the government and producers make informed decisions like how much to produce‚ and the price they set for products. Connection to article: The recent Cyclone Larry has affected crops in Australia‚ decreasing their supply of bananas drastically‚ as well as causing a decrease in the employment of workers in the banana industry. Analysis: Demand is the curve that
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6.1a) A monopoly is facing the demand and marginal cost curves which is P = 12 - 0.002Q and MC = 3 + 0.001Q. When the demand curve is P = a- bQ‚ the marginal revenue curve will be MR = a- 2bQ ‚ therefore‚ MR = 12 - 0.004Q.(Refer to figure1) Figure 1 To maximize the profits‚ the company should produce at the output level where marginal revenue is equal to marginal cost. If the marginal revenue is higher than marginal cost‚ the firm can increase profit by producing more. If
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1. What do economists mean when they state that a good is scarce? a. There is a shortage or insufficient supply of the good at the existing price. b. It is impossible to expand the availability of the good beyond the current amount. c. People will want to buy more of the good regardless of the price of the good. d. The amount of the good that people would like exceeds the supply freely available from nature. 2. Which of the following is most clearly consistent with the basic guidepost
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1. The following table shows the average retail price of salted grade AA butter per pound and the Consumer Price Index from 1980 to 2000‚ scaled so that the CPI = 100 in 1980. | 1980 | 1985 | 1990 | 1995 | 2000 | Consumer Price Index | 100.00 | 130.58 | 158.56 | 184.95 | 208.98 | Retail Price of Butter | $1.88 | $2.12 | $1.99 | $1.61 | $2.52 | a. Calculate the real price of butter in 1980 dollars. Recall: Real Price of butter in Year t=CPI1980CPIt×Nominal Price in Year t For Example:
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