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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?
How does the PED and PES of commodities affect producers in developing countries? Explanation of PED (formulaic) Definition of PED outlining commodities as having lo
You are examining the effects of a specific tax of 10 cents imposed on the sales of a product that we shall call XYZ. To carry out your analysis, assume that the market is a perfec
A major component of the costs of many large firms is the cost associated with ordering and holding inventory. If the yearly demand for the good is D and the size of each order pla
How do we evaluate the value of money? Supply and demand verifies the value of a currency. If demand is high, the value rises, and vice versa. Factors that affect supply and de
social welfare ordinal
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"price is becoming cheaper,yet the demand for car is not rising".does it mean law of demand is not operative?
I don''t really understand how scitovsky contour is formed.
Domestic Policy Failures: i) There is too much emphasis on "ownership" ownership of bad policies can lead to disasters. So, at times, the Fund and the Bank will need to be "p
In John Stossel's article, "In Praise of Price Gouging", Stossel argues that a law banning price gouging would result in a two-block line for gasoline after Superstorm Sandy. a.
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