SAPLINGPLUS ACCESS MACRO 1TERM
SAPLINGPLUS ACCESS MACRO 1TERM
4th Edition
ISBN: 9781319318970
Author: KRUGMAN
Publisher: MAC LTD
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Chapter 15, Problem 6P
To determine

Concept Introduction:

Monetary Policy: This policy is used by the central bank to control the liquidity of money from an economy to bring the economy to a stable condition. This is done through the management of interest rates and the money supply.

Expansionary Monetary Policy: This policy is used by the government to expand the money supply in the economy. Money supply is increased by reducing the interest rate, as lower interest rates will encourage people to borrow more.

Contractionary Monetary Policy: This policy is used by the government to contract the money supply from the economy. Money supply is reduced by increasing the interest rate, as higher interest rates will de-motivate people to borrow.

Inflationary gap: At the level of full employment, if the value of the real GDP is greater than the value of the potential GDP, it leads to an emergence of the inflationary gap.

Recessionary gap: At the level of full employment, if the value of the potential GDP is greater than the value of the real GDP, it leads to an emergence of the recessionary gap.

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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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