________ marginal opportunity cost implies that the more resources already devoted to any activity, the payoff from allocating yet more resources to that activity increases by progressively smaller amounts

Which of the following is a macroeconomics question?

A) What factors determine the price of carrots? B) What determines the production of DVDs? C) What determines the inflation rate? D) What determines the wage of auto workers?

Tying arrangements that lessen competition were made illegal by

A) the Sherman Anti-Trust Act. B) the Clayton Act. C) the Celler-Kefauver Act. D) the Robinson-Patman Act.