Which of the following would cause aggregate demand to shift to the right?

For productive efficiency to hold

A) average variable cost is minimized in production. B) average total cost is minimized in production. C) price must equal the marginal cost of the last unit produced. D) price must equal marginal revenue of the last unit sold.

According to aggregate demand and supply analysis, the negative supply shocks of 1973-1975 and 1978-1980 had the effect of

A) increasing aggregate output, lowering unemployment, and raising the inflation. B) decreasing aggregate output, raising unemployment, and raising the inflation. C) increasing aggregate output, raising unemployment, and raising the inflation. D) decreasing aggregate output, raising unemployment, and lowering the inflation.