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

Risk and advantages associated with company locations, What are some of the...

What are some of the primary advantages when a corporation has operations in countries other than its home country?  What are some of the risks? Foreign operations may decrease

Explain the diversify investor's portfolio internationally, Why might it be...

Why might it be very simple for an investor desiring to diversify his portfolio internationally to buy depository receipts as compared to the actual shares of the company? Answ

What is maturity, Q. What is Maturity? Maturity: The maturity period of...

Q. What is Maturity? Maturity: The maturity period of the securities should be short, otherwise, the company might suffer losses on account of getting the funds pre-maturely re

Calculate the annual interest , Reston, Inc., has asked your corporation, P...

Reston, Inc., has asked your corporation, Pruro, Inc., for financial assistance. As a long-time customer of Reston, your firm has decided to give that assistance. The question you

How do risk-averse investors compensate, How do risk-averse investors compe...

How do risk-averse investors compensate for risk when they take on investment projects? For the reason of risk aversion, people demand elevated rates of return for taking on hi

Risk of portfolio if asset of low correlation are combined, What happens to...

What happens to the riskiness of a portfolio if assets with very low correlations (even negative correlations) are combined? How successfully diversification decreases risk reli

Display profit diagrams for long stock and for short stock, Question: (...

Question: (a) A stock currently sells for $80 and a put option with an exercise price of $80 currently sells for $2. Find the percentage gain to an investor in the common stock

Computation of working capital, Will you please define the working capital ...

Will you please define the working capital and Calculation of working capital? I need urgent help in my assignment. help me!

Generally accepted accpunting principle or gaap, Generally Accepted Accpunt...

Generally Accepted Accpunting Principle or GAAP The American Institute of Certified Public Accountant (AICPA) elaborates financial accounting theory and commonly accepted acco

Forward start option and a chooser option, When a company commits (implicit...

When a company commits (implicitly or explicitly) to granting at-the-money options to employees in the future then we can view them as a forward start options. a) Explain the di

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