In the above figure, what is the amount of producer surplus at the efficient quantity?

In the Romer model. as more labor is devoted to research and development ________

A) there is an immediate decrease in output per capita B) there is an immediate increase in output per capita C) output per capita is unaffected, but the savings rate begins to rise D) output per capita is unaffected, but the savings rate begins to fall

If Congress votes to increase government purchases and at the same time decrease personal income taxes, they

a. have decided to balance the federal budget. b. have voted for the proper policy to counteract a recession. c. have voted for the proper policy to counteract inflation and an economic boom. d. are trying to achieve a federal budget surplus.