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

Eurodollar, Eurodollar U.S. currency held on deposit in banks located ...

Eurodollar U.S. currency held on deposit in banks located outside the United States, mainly in Europe. Eurodollars are mostly used for settling international transactions outs

Define deadweight loss, What is meant by deadweight loss?  Why does a price...

What is meant by deadweight loss?  Why does a price ceiling usually result in a deadweight loss? Deadweight loss considers to the benefits lost to either consumers or producers

Long-term solvency ratios (financial leverage ratios), Long-Term Solvency R...

Long-Term Solvency Ratios (Financial Leverage Ratios)   Debt-Equity Ratio = Total Debt / Total Equity à It is a measure of a company's debt utilization. It gives the ex

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

Differences between indirect costs and direct costs, a) Variable costs: Rem...

a) Variable costs: Remuneration of flight attendants, Meals and drinks onboard, Fuel. Fixed costs: promotions and Advertising, Remuneration of administrative staff and Airport c

What is marginal cost of capital, What is Marginal cost of capital Marg...

What is Marginal cost of capital Marginal cost of capital, by contrast refers to incrementalcost associated with new funds raised by firm. Marginal cost is the specific conc

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

Pros and cons of simulation technique, Pros and Cons Simulation techniq...

Pros and Cons Simulation technique allows experimentation with a model of the real life system. Whenever experimenting with the system itself is risky and/or costly, simulation

Floating-rate securities that have adjustable quoted margin, Floaters ...

Floaters that can be classified under this head are: 1. Stepped Spread Floaters 2.  Extendible Reset Bonds

Exam help, You plan to borrow $125,000 at a 9.5% annual interest rate. The...

You plan to borrow $125,000 at a 9.5% annual interest rate. The terms require you to amortize the loan with 10 equal end-of-year payments. How much interest would you be paying i

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