Macroeconomics
13th Edition
ISBN: 9780134744452
Author: PARKIN, Michael
Publisher: Pearson,
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Chapter 11, Problem 34APA
(a)
To determine
Identify the equation of the aggregate expenditure curve.
(b)
To determine
Identify the value of equilibrium expenditure.
(c)
To determine
Identify the value of the multiplier.
(d)
To determine
Identify the value of shift in the aggregate
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2. A firm’s production function is given by:Q = 10KLThe unit capital and labour costs are 2 and 1 pounds respectively. The firm is contracted to produce2000 units.(a) Write out the optimisation problem of the firm. (b) Express this problem using a Lagrangian function. (c) Find values of K and L which fulfil the contract with minimal cost to the firm. (d) Calculate the total cost to the firm.
3. Consider the following estimated regression equation, estimated using a sample of firms, where RDis total firm spending on research and development in USD ($), Revenue is total firm revenuein USD ($), and W ages is the firms’ total spending on wages in USD ($) (standard errors inparentheses):RDd = 1000(600)+ 0.5(0.1)Revenue + 1.5(0.5)W ages,(a) Interpret the coefficients on each of the explanatory variables. (b) Which of the three coefficients are statistically significant at the 5% level of significance? Howdo you know? A researcher runs a two-sided statistical test of the null hypothesis that both the coefficients onthe explanatory variables above are jointly equal to 0.25 (mathematically, that β1 = β2 = 0.25),and reports a p-value of 0.045.(c) What does this p-value mean for the outcome of the test? (d) What would an appropriate two-sided alternative hypothesis look like?
Chapter 11 Solutions
Macroeconomics
Ch. 11.1 - Prob. 1RQCh. 11.1 - Prob. 2RQCh. 11.1 - Prob. 3RQCh. 11.2 - Prob. 1RQCh. 11.2 - Prob. 2RQCh. 11.2 - Prob. 3RQCh. 11.2 - Prob. 4RQCh. 11.3 - Prob. 1RQCh. 11.3 - Prob. 2RQCh. 11.3 - Prob. 3RQ
Ch. 11.4 - Prob. 1RQCh. 11.4 - Prob. 2RQCh. 11.4 - Prob. 3RQCh. 11.4 - Prob. 4RQCh. 11 - Prob. 1SPACh. 11 - Prob. 2SPACh. 11 - Prob. 3SPACh. 11 - Prob. 4SPACh. 11 - Prob. 5SPACh. 11 - Prob. 6SPACh. 11 - Prob. 7SPACh. 11 - Prob. 8SPACh. 11 - Prob. 9SPACh. 11 - Prob. 10SPACh. 11 - Prob. 11SPACh. 11 - Prob. 12SPACh. 11 - Prob. 13SPACh. 11 - Prob. 14SPACh. 11 - Prob. 15APACh. 11 - Prob. 16APACh. 11 - Prob. 17APACh. 11 - Prob. 18APACh. 11 - Prob. 19APACh. 11 - Prob. 20APACh. 11 - Prob. 21APACh. 11 - Prob. 22APACh. 11 - Prob. 23APACh. 11 - Prob. 24APACh. 11 - Prob. 25APACh. 11 - Prob. 26APACh. 11 - Prob. 27APACh. 11 - Prob. 28APACh. 11 - Prob. 29APACh. 11 - Prob. 30APACh. 11 - Prob. 31APACh. 11 - Prob. 32APACh. 11 - Prob. 33APACh. 11 - Prob. 34APA
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