a period of time short enough so that the quantities of at least one of the resources cannot be varied Match each term with its correct definition by placing the appropriate letter next to the corresponding number.
A. average total costs (ATC) G. zero economic profit B. marginal costs (MC) H. positive economic C. short run profit D. long run I. negative economic E. law of diminishing profit marginal returns J. normal profit F. economic profit K. fixed costs L. variable costs