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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.
Question: i) Briefly explain the importance of forecasting for managers? ii) To what extent will managers rely on surveys in business forecasting? iii) What do you mea
wHAT IS THE SIGNIFICANCE OF EXPECTATION ELASTICITY ?
Limits on the process of bank deposit creation On the demand side , there may be a lack of demand for loans, or at least of borrowers who are sufficiently credit worthy .
Q10000-50p
what is equi marginal concepts?
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Joe is evaluating the marketing strategy at his restaurant and inn. Suppose that in response to a $2.00 off sales promotion for spaghetti dinners, Joe finds that nightly dinner sal
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Peanut butter monopolist Calvé supplies peanut butter to Albert Heijn in an isolated village. The supermarket is a monopolist in the village. Demand for peanut butter is given by:
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