Which of the following was NOT a creation of the Bretton Woods conference?

Assume a firm is operating under conditions of pure competition and faces a marginal cost function that is everywhere below its average total cost

If the firm is producing where marginal revenue equals marginal cost will it be possible for it to make an economic profit? Explain.

Marginal cost is equal to the

A) change in total cost divided by the change in output. B) change in average total costs divided by the change in output. C) change in average product divided by the change in output. D) change in total product divided by the change in output.