Bundle: Essentials Of Economics, 8th + Mindtap Economics, 1 Term (6 Months) Printed Access Card
Bundle: Essentials Of Economics, 8th + Mindtap Economics, 1 Term (6 Months) Printed Access Card
8th Edition
ISBN: 9781337378833
Author: N. Gregory Mankiw
Publisher: Cengage Learning
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Chapter 14, Problem 8PA

Subpart (a):

To determine

Profit maximization.

Subpart (b):

To determine

The demand, marginal revenue and marginal cost curves.

Subpart (c):

To determine

Evaluate the shortage.

Subpart (d):

To determine

Evaluate shortage.

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Please answer questions D-H, I have already answered A , B,C but it may help you to still solve them yourself. Thank you!
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?
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