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

Municipal bonds, 1. Tax-backed debt and 2. Revenue bonds ...

1. Tax-backed debt and 2. Revenue bonds are two types of municipal bonds.

Credit control - account receivable management, Q. Credit control - account...

Q. Credit control - account receivable management? Once credit has been established it is important to review outstanding accounts on a regular basis so overdue accounts can be

What is business risk, What is Business risk It is related to response ...

What is Business risk It is related to response of the firm's earnings before taxes andinterest, or operating profits, to changes in sales. When cost of capital is used to eval

Emerging market bonds, Emerging market bonds are the bonds offe...

Emerging market bonds are the bonds offered by less developed countries. The government normally issues them. These exclude borrowings from gove

What is risk adjusted discount rate, Q. What is risk adjusted discount rate...

Q. What is risk adjusted discount rate? The risk adjusted discount rate includes two rates viz (i) Risk-free rate: - Risk free rate is the usual rate or the usual discount r

Determine the factors of large organisations, Determine the factors of Larg...

Determine the factors of Large organisations -  Greater efficiency and productivity achieves economies of scale -  Easier to manage, organise and control workers through hie

Foreign exchange exposure, Using an appropriate 'factor model', assess (a) ...

Using an appropriate 'factor model', assess (a) the performance of the management in creating value for shareholders and (b) the extent of the foreign exchange exposure of a FTSE10

Measuring yield curve risk, Rate duration can be defined as the sen...

Rate duration can be defined as the sensitivity of the change in value to a particular change in spot rate. Every point in a spot rate curve has a rate dura

What can financial institution often do for deficit econmic, What can a fin...

What can a financial institution often do for a deficit economic unit (DEU) that it would have difficulty doing for itself if the DEU were to deal directly with an SEU? SEUs us

Determine the expected return, Question : (a) Lucky Corporation is cons...

Question : (a) Lucky Corporation is considering an investment in one of the two mutually exclusive proposals: Project A which involves an initial outlay of Rs 170,000 and Proj

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