The economic return to oil resources is called:

One of the major insights by economist John Maynard Keynes about production was that:

A. government spending needs to be kept in check in order for the economy to operate efficiently. B. household spending patterns don't really influence the health of the economy. C. firms may not produce all they can at a given price, but what they can sell. D. firms generally produce as much as they can at a given price.

Total revenue minus total cost is equal to

A. profit. B. the rate of return. C. net cost. D. marginal revenue.