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

Explain the sensitivity analysis of burley plc, Sensitivity analysis A ...

Sensitivity analysis A sensitivity analysis studies the impact of specified variations in key factors on the initially-calculated NPV. The initial point for a sensitivity analy

Serene Hall ?? Assignment, The purchase price is expected to be in the regi...

The purchase price is expected to be in the region of £30m - £40m now (year 0 ?? 2003) and further cash flow effects might include: ?? Annual cash inflows from New You ?? in a rang

What is rationale and behind profitability maximisation, What is Rationale ...

What is Rationale and behind profitability maximisation Rationale & behind profitability maximisation, as a guide to financial decision making, is simple. Profit is a test of e

Functions of financial manager, Functions of Financial Manager: - The finan...

Functions of Financial Manager: - The financial manager is a associate of top management. He is intimately associated with the formulation of financial policies as well as financia

Interpretations of market based ratio''s, Market based Ratio's   PE:...

Market based Ratio's   PE:           The Price-to-Earnings ratio is calculated by market price per share to earnings per share and is expressed in terms of times. It shows h

Distributing the dividends and retaining the earnings, The Walter's model, ...

The Walter's model, thus relates the question of distributing the dividends and retaining the earnings to the investment opportunities that are available with the firm. (i) If a

Define earning per share -eps, Earning per share Earnings per share (E...

Earning per share Earnings per share (EPS) are computed as profit attributable to equity divided by the number of shares in issue and ranking for dividends. EPS therefore repr

Define the pros and cons of commercial paper, What are the pros and cons of...

What are the pros and cons of commercial paper relative to bank loans for a company seeking short-term financing? Commercial paper is generally a cheaper source of short-term fin

Fixed weight aggregates method - fisher''s ideal method, Fixed Weight Aggre...

Fixed Weight Aggregates Method In fixed weight aggregates method, the weights used are neither from base period nor from current period but from a representative period. These

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