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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?
At what point is the Fed likely to raise interest rates for the first time? How large are the first couple of hikes likely to be? (hints: conditional on unemployment or gdp growth
A trend line can be fitted through a series graphically. Old values of sales for different areas are plotted on a graph and a free hand curve is drawn passing through as many point
How do we measure economic growth and why do we need economic growth? (ii) What can governments do to stimulate economic growth and create jobs? (provide some current examples) (ii
what is multi-plant monopoly?
I need help finding the future worth given the initial investment, MARR, and profit over a period of time.
types of elasticity of demand
if sabela can afford 4 trousers and 4 pairs of shoes.she could also use her entire budget to buy 8 trousers and 2 pairs of shoes.if the price of a trouser is 500 birr,how much is s
draw the supernormal curve
Problem 1: (a) Explain the common set of problems that developing countries usually face. (b) In your opinion, which of the problems described in part (a), are more signifi
Recent developments in demand theory
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