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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?
What is the importance of microeconomics in study of managerial economics? Normal 0 false false false EN-IN X-NONE X-NONE
The benefits of increased openness in trade. Narrowly defined, trade openness is lowering trade barriers - facilitating increased imports - whereas focusing on international ex
1. Assume that the market for wheat is perfectly competitive. Suppose the demand curve for wheat is given by: QD = 200 – 2P where QD is the quantity demanded, in bushels, and P i
What are the basis for International Trade?
Economies of Scope The ability of a organization to decrease its unit costs by producing two or more products or services that involve complementary skills, experience and
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In relation to banking, Basel II, the Capital Requirements Directive (CRD) was implemented in January 2008. The CRD requires stricter capital treatment of a bank's risk transfer op
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