Which of the following is a factor that determines the shape of the aggregate demand curve?

Which one of the following is TRUE?

A) New growth theory suggests that there is no connection between the level of education in a country and its rate of economic growth. B) New growth theory suggests that education benefits only those people who receive it, and not the population as a whole. C) Investments in secondary education produce gains in the form of economic growth. D) Secondary education does not boost economic growth in developing nations, because so much of the workforce remains in agriculture.

Competition among sellers occurs

A) when marginal revenue equals marginal cost. B) when price equals marginal cost. C) when price equals marginal revenue. D) whenever sellers try to attract customers from one another.