Consider a market with a downward-sloping demand curve. Assume that all firms in a competitive market are initially in a long-run and short-run equilibrium. Suppose the variable costs of production increase, which shifts up the marginal cost and average total cost curves to the same extent. In the long run we would expect the price to and the number of firms in the market to increase; decrease O increase; increase O decrease; decrease O decrease; increase O None of the above