Construction of the causal model - regression analysis, Managerial Economics

Assignment Help:

Q. Construction of the causal model - regression analysis?

The construction of an explanatory model is a crucial step in the regression analysis. It should be defined with reference to the action theory of intervention. It is likely that different kinds of variable exist. In a number of cases, they may be specially created, for instance to take account of the fact that an individual has benefited from support or not (a dummy variable, taking values 0 or 1). A variable can also represent an observable characteristic (having a job or not) or an unobservable one (probability of having a job). The model may suppose that a particular variable develops in a linear, logarithmic, exponential or other way. All the explanatory models are constructed on the foundation of a model, like the following, for linear regression: 

Y = β0 + β1X1 + β2X2 + .... + βkXk + ε, where

Y is the change that programme is primarily supposed to produce (for example employment of trainees)

X1-k are independent variables likely to describe the change.

β0-k are constants and 

ε is the error term  

Phenomena of co-linearity weaken the explanatory power. For instance, when questioning women about unemployment, if they have experienced periods of previous unemployment that are systematically longer than those of men, it won't be possible to separate the influence of the two explanatory factors: gender and duration of previous unemployment.


Related Discussions:- Construction of the causal model - regression analysis

Factors affecting the ability of trade unions, FACTORS AFFECTING THE ABILIT...

FACTORS AFFECTING THE ABILITY OF TRADE UNIONS TO GAIN LARGER WAGE INCREASES FOR ITS MEMBERS The basic factor is elasticity of demand for the type of labour concerned.  The ela

Environmental degradation, Comment on the consequences of environmental deg...

Comment on the consequences of environmental degradation on the economy of a community.

Objective of fiscal policy, Objective of Fiscal Policy As an instrument...

Objective of Fiscal Policy As an instrument of macroeconomic policy, the goals of fiscal policy are likely to be different in different countries and in the same country in dif

What do you mean by external economies, Q. What do you mean by External Eco...

Q. What do you mean by External Economies? External economies arise outside the firm as a result of improvement in industrial environment in that the firm operates. They are ex

Gross domestic product, Gross Domestic Product A measure of national ec...

Gross Domestic Product A measure of national economic activity, GDP is measured from two approaches. GDP can be viewed as the total value of all goods and services produced in

Money supply, examine the endogenous and exogenous determinants of money su...

examine the endogenous and exogenous determinants of money supply

Relationship between mr and elasticity, Suppose that the price elasticity o...

Suppose that the price elasticity of demand for cereal is -0.75 and the cross-price elasticity of demand between cereal and the price of milk is -0.9. If the price of milk rises by

Marrise model od growth, what are the instruments variable of marrise''s mo...

what are the instruments variable of marrise''s model?

Stabex, STABEX The STABEX scheme was designed to stabilize earnings fr...

STABEX The STABEX scheme was designed to stabilize earnings from exports of the African, Caribbean and Pacific (ACP) countries to the Community.  It covered seventeen agricult

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