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

Determine the revenues earned from overseas markets, a) This refers a busin...

a) This refers a business, such as Palmolive-Colgate being able to sell the same product using the same marketing approach all over the world. It is used by firms with global brand

What is risk mitigation and how it is monitored, Q. What is Risk mitigation...

Q. What is Risk mitigation and how it is monitored? 1. When managing risks, there are several risk strategy options to be considered. Risk may be avoided entirely, transferred

Reform in a system, As the meaning of reform in a system, these reforms in ...

As the meaning of reform in a system, these reforms in corporate governance would make effective impacts over the process of audit in the context of auditor requirements and the cl

Investment banker, The Role of Merchant Banker The issuer appoints the ...

The Role of Merchant Banker The issuer appoints the Merchant Banker (or Investment Banker) to undertake the issue activity. A Merchant Banker performs multiple functions during

Explain cash flow budget and npv in lkl plc, LKL PLC Project VZ (...

LKL PLC Project VZ (a) Cash Flow budget and NPV WORKINGS

Demerits of profitability index method, Q. Demerits of profitability index ...

Q. Demerits of profitability index method? Demerits of PI method:- (i) This method is complicated to understand and implement (ii) Calculations in this method are complex

Management accounting, Management Accounting: Management accounting on ...

Management Accounting: Management accounting on the other hand tends to focus internally. Reports generated through management accounting processes will be used by the organisa

Minimax decision, How to compare minimax and maximin with figures and comme...

How to compare minimax and maximin with figures and commentary ?

Calculate rate of return on investment in terms of us dollar, Mr. James K. ...

Mr. James K. Silber, an avid international investor, just sold a share of a French company, for FF50. The share was bought for FF42 a year ago. The exchange rate is FF5.80 each U.S

Value of conversion benefits, Value of Conversion Benefits: Having seen...

Value of Conversion Benefits: Having seen the measure used to analyze the convertible bonds, let us now examine the merits and demerits of convertible bonds and why or why not

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