MACROECONOMICS W/ ACHEIVE ACCESS LL
MACROECONOMICS W/ ACHEIVE ACCESS LL
5th Edition
ISBN: 9781319395629
Author: KRUGMAN
Publisher: MAC HIGHER
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Chapter 4, Problem 3P
To determine

Concept Introduction:

Price Control: They are some types of restrictions on the range of price in the market which are generally imposed by the government to protect interest of consumers and producers. They are generally of two forms:

Price Floor: When the governments limit the minimum price which can be charged from consumers then it is referred as price ceiling. It may be binding or non- binding. When the minimum price is above market equilibrium price then it is binding. If the maximum price is below the market equilibrium price then it is not binding.

Demand Curve: The curve which shows how the quantity demanded changes due to change in the price. It is negatively sloped curve.

Supply Curve: The curve which shows how the quantity supplied changes due to change in the price. It is positively sloped curve.

Consumer Surplus: It is difference between the amount that a consumer wants to pay and the real amount which he pays for goods and services.

Producer Surplus: It is difference between the amount that a producer wants to receive and the real amount which he receives for goods and services.

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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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