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

Securities and exchange commission of usa, SECURITIES AND EXCHANGE COMMISSI...

SECURITIES AND EXCHANGE COMMISSION OF USA In the United States, securities industry is regulated by the United States Securities and Exchange Commission (SEC). It is the govern

Illustration of valuation using multiple discount rates, Illustration  ...

Illustration  Let us assume that Vishal Mehta & Co., (from Illustration 1) is using the following discounting rates in place of one rate:

What are the techniques of financial management, What are the techniques of...

What are the techniques of financial management There are two widely-discussed techniques: (i) Profit maximisation approach and (ii) Wealth maximisation approach.

Explain the concepts of planning the work, Explain the concepts of Planning...

Explain the concepts of Planning the work Determine scope and objective of the audit (to verify assets, to check adequacy of internal controls etc...). Ensuring appropr

What do you mean by treasury bills, Q. What do you mean by Treasury Bills? ...

Q. What do you mean by Treasury Bills? Treasury bills (TBs) are short-term government securities. The usual practice in India is to sell treasury bills at a discount and redeem

OPERATING CYCLE, DISCUSS THE APPLICABILITY OF AN OPERATING CYCLE TO APOULTR...

DISCUSS THE APPLICABILITY OF AN OPERATING CYCLE TO APOULTRY BUSINESS (BROILERS)

Documenting the accounting system, Documenting the accounting system Th...

Documenting the accounting system There are 3 methods generally used to document the clients system. Narrative notes: Written description of the system Advantages:- C

Venture capital and private equity, It is argued that VC & PE houses achiev...

It is argued that VC & PE houses achieve superior returns through ruthlessly focussing management on short to medium term outcomes. In particular, parsimonious cash management is g

Is book value the best proxy to the value of the shares, Is book value the ...

Is book value the best proxy to the value of the shares? No. According to A6 it would be a miracle if the number that appears in the Shareholders' Equity had anything to do wit

Bonds with warrants, Bonds with Warrants: Warrants are usually attached...

Bonds with Warrants: Warrants are usually attached with the bonds or preference shares to attract the investor. The objective is to induce the potential investors to subscribe

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