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You are primarily tasked with examining if a firm's advertising expenditures influence company's stock price. A) What is the dependent variable? What is the focal

You are primarily tasked with examining if a firm's advertising expenditures influence company's stock price.

A) What is the dependent variable? What is the focal independent variable? What other independent variables will you include in this model.Briefly explain your choice of other independent variables.

B) Please briefly explain i) omitted variable bias and ii) multicollinearity

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