Make or buy decisions affect the degree of vertical integration

For a monopoly, marginal revenue is equal to

A) the amount people buy at a given price. B) the amount people buy between two prices. C) the change in total revenue brought about by a one-unit increase in quantity sold. D) the price multiplied by the quantity sold. E) the price of the product.

All normal-form games have at least one dominant strategy

Indicate whether the statement is true or false