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

Show the disadvantages of adjusted discount rate, Q. Show the Disadvantages...

Q. Show the Disadvantages of adjusted discount rate? (1) The risk premium rates resolute under this method are arbitrary. Therefore this method mayn't give objective results.

Describe the sales forecasting process, Describe the sales forecasting proc...

Describe the sales forecasting process. Sales assumptions are a group effort. Marketing and Sales personnel usually provide assessments of demand and the competition.  Producti

What are the time dimensions of the income statement, What are the time dim...

What are the time dimensions of the income statement, the balance sheet, and the statement of cash flows? Hint: Are they videos or still pictures?  Explain. Sol. The i

Determine earnings per share, Q. Determine Earnings per share? Current ...

Q. Determine Earnings per share? Current earnings per share = 100 × (4550 - 225)/ 5000 = 86.5 cents Earnings per share after one year = 100 × (4508 - 225)/ 5000 = 85.7 cents

Capital structure decisions: the basics, i want some presentation slides of...

i want some presentation slides of this chapter from page 570 to 580

Characteristics and effects of saps, CHARACTERISTICS AND EFFECTS OF SAPS ...

CHARACTERISTICS AND EFFECTS OF SAPS Although SAPs differ somewhat from country to country, they typically have the following features: Reduction in Trade Barriers SAP’s r

Organizational cost drivers, Organizational Cost Drivers It is the cost...

Organizational Cost Drivers It is the cost consequences that result from managerial choices concerning the company of activities as well as the involvement of persons inside an

The us pension fund system, The US Pension Fund System The US corporate...

The US Pension Fund System The US corporate pension system has matured along with the country's demographic cycle. It consists of both defined benefit plans and defined contrib

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