Coefficient of the explanatory variable, Microeconomics

Assignment Help:

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?


Related Discussions:- Coefficient of the explanatory variable

Trend projection methods, An ole firm can use its own data of past years re...

An ole firm can use its own data of past years regarding its sales in past years. These data are known as time series of sales. A firm can predict sales of its product by fitting t

Long-run versus short-run cost curves, Long-Run Versus Short-Run Cost Curve...

Long-Run Versus Short-Run Cost Curves What happens to average costs when both the inputs are variable versus only having one input that is variable (short run)? The Inflexi

External cost or external benefit, Explain externality, how can government ...

Explain externality, how can government intervene to achieve allocative efficiency in case of external cost or external benefit? Answer The term externalities refers to bot

Price elasticity of supply, Price elasticity of supply: It is the resp...

Price elasticity of supply: It is the responsiveness of quantity supplied of a commodity to a change in the price of the commodity and measured as percentage change in quantit

Difficulties in measuring cost, Difficulties in Measuring Cost  1) Outp...

Difficulties in Measuring Cost  1) Output data may represent an aggregate of different type of products.  2) Cost data may not include opportunity cost.   3) Allocating c

Isoquants, Isoquants * Assumptions - Food producer has 2 inputs ...

Isoquants * Assumptions - Food producer has 2 inputs Labor (L) & Capital (K) * Observations:  1) For any level of K, output increases with L.  2) For any

What is return on investment, What is return on investment?   Return on ...

What is return on investment?   Return on investment is the profit earned by investing in some business or some project, for instance investment in stock exchange. Profit earned

Critique of cost-benefit studies, Normal 0 false false fals...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Budget constraints, Budget Constraints   * The Budget Line - The budg...

Budget Constraints   * The Budget Line - The budget line indicates all the combinations of 2 commodities for which total money spent equals the total income. * The Budget

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd