The probability distribution function displays a range of values for any econometric model. The uncertainty that lies in the range of alpha/beta depends on several factors.

Depends on individuals, on time. However time is not solely a independent variable. It can be considered as a dependent, unidimensional variable.

Thus, the general rule is that *any* variable is to be considered dependent, *never truly independent*, as explained by the cause and effect theory.

To synthesize, we have modeled an abstract situation with respect to the given constraints.

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