The field of economics that focuses on the actions of individual agents within the economy, like households, workers, and businesses is:

The figure above shows a monopoly firm's demand curve. If the price and quantity of haircuts move from point t to point r, the monopoly's

A) total revenue will rise. B) total revenue will fall. C) total revenue will remain the same. D) marginal revenue will decrease.

Which of the following statements is true?

A) To a large degree, Keynesians focus on the spending components of total expenditures when they seek to understand what determines GDP; monetarists focus on the money supply and velocity when their objective is the same. B) To a large degree, monetarists focus on the spending components of total expenditures when they seek to understand what determines GDP; Keynesians focus on the money supply and velocity when their objective is the same. C) Both Keynesians and monetarists focus on the spending components of total expenditures when they seek to understand what determines GDP; neither group focuses on the money supply and velocity. D) Neither Keynesians nor monetarists focus on the spending components of total expenditures when they seek to understand what determines GDP; both focus on the money supply and velocity.