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

Describes the methods of capital budgeting, Q. Describes the methods of Cap...

Q. Describes the methods of Capital Budgeting? Capital Budgeting: - Capital Budgeting is the procedure of making decisions for investment in long-term assets. It is a method of

Stock exchange, Working and function of stock exchange

Working and function of stock exchange

Define ‘trust''. explain in detail the various types of trust, Question 1 ...

Question 1 Define 'Trust'. Explain in detail the various types of Trust Question 2 Discuss the concept of Tax Planning. Identify difference between Tax Planning and Tax Ev

Day traders, Day Traders Day traders are basically the market markers. ...

Day Traders Day traders are basically the market markers. They create liquidity in the market by frequently buying and selling stocks throughout the day in the hope that the pr

Contribution plans-pension fund plans, Defined Contribution Plans In de...

Defined Contribution Plans In defined contribution plans, the contributions made by or on behalf of the employee are accumulated and paid on retirement along with such return a

What do you understand by swap, Question 1 Swap is an agreement among t...

Question 1 Swap is an agreement among two or more parties to exchange sets of cash flows over a period in future and What do you understand by swap? Describe its features, kind

Secured versus unsecured bonds, Along the dimension of security, bond...

Along the dimension of security, bonds can be classified into unsecured (straight) bonds and secured (mortgage) bonds. Unsecured bonds have no charge on any speci

Hedging strategy, Crown Co. is expecting to receive 100,000 British pounds ...

Crown Co. is expecting to receive 100,000 British pounds in one year. Crown expects the spot rate of British pound to be $1.49 in a year, so it decides to avoid exchange rate risk

What is the tolerable error, What is the Tolerable error In addition t...

What is the Tolerable error In addition to looking at material differences individually the auditor must list all the differences (material or not) and consider in total wheth

Clearing and settlement - t- bills, Clearing and Settlement The Treasur...

Clearing and Settlement The Treasury Bills are available in physical form if an investor desires so. The market is mostly dominated by institutional players who have a facility

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