If Variance of an Independent Variable in a Regression Model

question 17

True/False

If variance of an independent variable in a regression model, say x₁, is greater than 0, or Var(x₁) > 0, the inconsistency in ₁ (estimator associated with x₁) is negative, if x₁ and the error term are positively related.

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Definitions:

Monopolistic Competition

A market structure characterized by many sellers offering differentiated products, leading to some degree of market power.

Average Total Cost

The total cost of production (fixed and variable costs combined) divided by the number of units produced.

Economic Profits

Profits calculated by subtracting both explicit and implicit costs from total revenue, often indicating the degree of profitability beyond normal expectations.

Excess Capacity

A situation where a company can produce more goods than the market demands, often leading to inefficiencies.