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 for wage differential within the same occupation, FACTORS RESPONSIB...

FACTORS RESPONSIBLE FOR WAGE DIFFERENTIALS WITHIN THE SAME OCCUPATION i.     Differences in the environment:   For example a doctor sent to North Eastern Province must be pai

Eco401, d/f b/w MRTS and MRS

d/f b/w MRTS and MRS

Investment demand theory , In the national income analysis, investment ref...

In the national income analysis, investment refers to the value of than part of the aggregate output for any given time period which takes the form of construction of new structure

Theory of comparative advantage, THEORY OF COMPARATIVE ADVANTAGE In hi...

THEORY OF COMPARATIVE ADVANTAGE In his theory put forward in a book published in 1817, David Ricardo argued that what was needed for two countries to engage in international t

Mixed economy, The Mixed Economy There are no economies in the world w...

The Mixed Economy There are no economies in the world which are entirely 'market' or planned, all will contain elements of both systems. The degree of mix in any one econom

Describe the salient features of the monetary policy, Problem 1: Using ...

Problem 1: Using the policy neutrality proposition, Illustrate and determine the effectiveness of applying counter-cyclical monetary policy to stabilise output around its long

Determine the application of managerial economics, Determine the Applicatio...

Determine the Application of managerial economics Application of managerial economics isn't restricted to profit-seeking business organisations. Tools of managerial economics

Recession, Causes of the Nigeria recession

Causes of the Nigeria recession

Circular flow of income and expenditure, The Circular Flow of Income and Ex...

The Circular Flow of Income and Expenditure This is an economic model illustrating the flow of payments and receipts between domestic firms and domestic households. The househo

Availability of substitutes - determinants of demand, Q. Availability of Su...

Q. Availability of Substitutes - Determinants of Demand? One of the most important determinants of elasticity of demand for a commodity is availability of its substitutes. Clos

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