Multicollinearity, Financial Management

Assignment Help:

 

Multicollinearity

As the degree of correlation between the independent variables increases, the regression coefficients become less reliable. That is, although the independent variables may together explain the dependent variable, but because of multicollinearity the coefficients of the explanatory variables may be rejected. It can happen that the model may be accepted (through ANOVA and the F test), but the individual coefficients may be rejected (through the t test). This is because the interplay among the independent variables reduces the influence of the individual variables in the model. In the extreme case, if two variables are identical, then the influence of each one in the model would be reduced. Multicollinearity does not reduce the accuracy of the model (the predictive powers), but it hurts any sensitivity analysis - if we increase one explanatory variable by one unit, what happens?

This is a subject in itself, but the reader should be aware of the importance of multicollinearity.

Multiple Correlation Coefficients

 

So far we have come across correlation coefficients between two variables X and Y. However in the case of a multiple regression equation like

                   Y = a + b1 X1 + b2 X2

we see that Y can be correlated to both X1 and X2. Hence we can have a coefficient of multiple correlation which will measure the correlation between Y and both X1 and X2.

 

 

 


Related Discussions:- Multicollinearity

Portfolio management and asset pricing, I am facing some problems in my ass...

I am facing some problems in my assignment of Portfolio Management. Can anybody suggest me the proper explanation for it?

Three-phase source voltages and phase sequence, Q. Three-phase source volta...

Q. Three-phase source voltages and phase sequence? The elementary three-phase, two-pole generator shown in Figure has three identical stator coils (aa, bb, and cc) of one or

Determine the meaning of reportable segments, Determine the meaning of Repo...

Determine the meaning of Reportable segments Reportable  segments  are  operating  segments  or  aggregations  of  operating  segments  which meet specified criteria(core princ

Show the accountable plan, Q. Show the Accountable Plan? Accountable P...

Q. Show the Accountable Plan? Accountable Plan - An accountable plan is any reimbursement or other expense allowancearrangement of an employer which meets all of the subseque

What are financial centers?, Banks and brokerage firms are measured financi...

Banks and brokerage firms are measured financial centers

Obtain a market arbitrage position, (a) One could obtain a market arbitrag...

(a) One could obtain a market arbitrage position as follows: buy Honeywell shares as well as sell General Electric shares. If the merger gets place the Honeywell shares will conve

Show the working capital in a business, Q. Show the Working capital in a bu...

Q. Show the Working capital in a business? Working capital in a business is essential since of operating cycle. However the need for working capital doesn't come to an end afte

What could be your priority in baba''s case, QUESTION (a) A financial f...

QUESTION (a) A financial fraud has happened in BABA Bank. Your services have been retained as forensic examiner to investigate the above case While investigating you receive

Measure a project’s risk as the change in the cv, Define why we measure a p...

Define why we measure a project’s risk as the change in the CV. We calculate a project’s risk as the change in the coefficient of variation since this focuses on the change in

What are the primary reasons that companies hold cash, What are the primary...

What are the primary reasons that companies hold cash? Companies hold cash to do necessary payments to take advantage of opportunities as they arise and to cover unforeseen eme

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