Which of the following is not a negative externality associated with driving cars?

What makes it extremely difficult for cartels to function effectively without government assistance?

A) Cartel members cannot agree among themselves on the optimum price because all have different costs. B) High prices encourage cartel members to offer discounts, and they attract new entrants to the industry. C) Marginal cost will not equal marginal revenue except at output levels beyond the cartel's capacity. D) Public interest considerations usually require an output greater than the cartel's net revenue maximizing output. E) The hostility of the public to price exploitation makes it difficult for the cartel to defend itself against the consequences of popular hostility.

The OLS estimators of the coefficients in multiple regression will have omitted variable bias

A) only if an omitted determinant of Yi is a continuous variable. B) if an omitted variable is correlated with at least one of the regressors, even though it is not a determinant of the dependent variable. C) only if the omitted variable is not normally distributed. D) if an omitted determinant of Yi is correlated with at least one of the regressors.