2. Suppose Natasha currently makes $50,000.00 per year working as a manager at a cable TV company. S

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4. The elasticity of demand in the local hardware industry is -2, while in the video market it is -5

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The market for carrots is comprised of two segm… Show more Estimating Industry Demand for Fresh Market Carrots The market for carrots is comprised of two segments: fresh market carrots, which have excellent, uniform color and a small core, and processing carrots, which are larger than fresh market carrots but still have good flavor, color, and sweetness. Annual data for the years 1983–2000 in the fresh market segment of the carrot industry are presented below. Q is total annual fresh market carrot production (measured in thousands of hundred weight units, which are 100,000 pound units), P is average annual real price per hundred weight of fresh market carrots (in constant 1991 dollars), 1 and W is a weather index based on temperature and rainfall (W varies directly with conduciveness of weather for growing carrots). To account for the increasing popularity of carrots during the sample period, the time variable t is added to the demand equation to reflect growing popularity of carrots. The production data do not account for imports and exports of carrots. During the period of this sample, however, net exports of carrots (exportsminus imports) were quite small in every year. t Q P W 1983 7,242 10.03 100.0 1984 8,220 6.62 108.3 1985 8,886 10.47 109.5 1986 9,300 12.59 96.3 1987 9,593 11.54 98.3 1988 10,758 10.56 101.2 1989 10,356 13.88 101.5 1990 11,322 14.01 100.6 1991 11,741 14.71 111.8 1992 12,486 13.15 109.0 1993 13,927 13.16 112.3 1994 15,072 16.14 115.4 1995 14,969 18.06 107.2 1996 14,163 19.45 90.5 1997 15,589 19.65 92.5 1998 16,192 17.29 95.6 1999 15,479 19.22 94.8 2000 17,992 19.24 98.7 Consider the following specification of empirical demand and supply functions in the fresh market segment of the carrot industry: 2 sdQQabPctdePfW=++=++ a. Should the ordinary least-squares (OLS) method or the two-stage least-squares method (2SLS) method be employed to estimate market demand for carrots? a11x1+a12x2<=b1 a21x1+a22x2<=b2 a31 x1 + a32 x2 <= b3 b. Which variables are endogenous variables in the system? Which variables are exogenous? For the model specified above, is the demand for fresh market carrots identified? 1 Since carrots are planted and harvested year-round, carrot prices are computed as average prices for each year. 2 Typically farmers make production decisions for the current year using the previous year’s crop prices (or a weighted-average of several previous years of crop prices). Since carrots are planted year-round, it is not unreasonable to specify current annual production as a function of current average price of carrots. c. Using statistical software, estimate the parameters of the empirical demand function specified in part a. Write the estimated industry demand equation for carrots. d. Are the estimated slope parameters of demand statistically significant at the 15 percent level of significance? Are the algebraic signs of the parameter estimates and reasonable? Explain. ˆbˆc e. Would you expect the demand for carrots to be elastic or inelastic when measured at the average price over the period of the sample? (Hint: Consider the discussion in Chapter 3 concerning the factors that influence demand elasticity.) f. Compute the price elasticity of demand for carrots measured at the sample mean values of price (P), quantity (Q), and time (t). Is the demand for fresh market carrots elastic, inelastic, or unitary elastic when measured at the sample mean values of P, Q, and t? g. By approximately what percentage amount would the price of carrots have to fall in order for quantity demanded to increase by 10 percent? h. Explain, in quantitative terms, the meaning of the estimate of the slope parameter on t. • Show less

4.4. Mirk Labs is a British pharmaceutical company that currently enjoys a patent monopoly in Europe