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Problem:
(a) Why is an error term added to a regression and explain its importance in the OLS procedure?
(b) Suppose we have a linear equation with a constant term, one explanatory variable and an error term, show in details the steps required, using the OLS procedure, to derive the estimates of the constant term and that of the coefficient of the explanatory variable.
(c) Suppose a researcher wants to test whether the returns on a company stock (y) show unit sensitivity to two factors (factor x2 and factor x3) among three considered. The regression is carried out on 144 monthly observations. The regression is: Yt = β1 + β2x2t + β3x3t + β4x4t+ ut
i) What are the restricted and unrestricted regressions?
ii) If the two RSS are 502.4 and 302.8 respectively, perform an F-test of the restriction, showing all the required steps.
(d) How are the t-test and the F-test related and describe in which cases they cannot be applied?
It is necessary for the proper understanding of the price theory to know the various concepts of cost that are often employed. When an entrepreneur undertakes production of a commo
1)The productive capability of an economy is such that to produce 5 units of military good it takes 2 workers to be employed while 10 units of consumer goods require 3 workers. Res
causes of abnormal supply curve
(i). A firm's costs are 500 when output is 100. If the TC function is linear and fixed cost (FC) are 200, find the marginal cost when Q = 4, 5 and 6. (ii). The following are est
the price elasticity for gizmos is known to be 1, if sellers of gizmos increase their
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do you think that dimnishing returns to a factor are consistent with increasing returns to scale? explain with suitable diagram and reasoning.
Suppose a government uses an expansionary fiscal policy to get out of a recession. Use the IS/LM model and the IS-PC-MR model to explain what monetary policy to pursue.
what are the criticisms of modern theory of rent?
Problem 1: i) How might unemployment arise? ii) Critically explain how fiscal policy can be used to reduce the unemployment rate in an economy. iii) ‘'Inflation always
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