When cyclical unemployment increases and other things remain the same, ________

Which of the following would cause an increase in the supply of peanut butter?

A) a decrease in the price of grape jelly (assuming that peanut butter and grape jelly are complements) B) an increase in the price of peanut butter C) an increase in the number of firms that produce peanut butter D) an increase the price of a product that producers sell instead of peanut butter

A system where goods and services are exchanged directly without a common unit of account is called the:

A) commodity system. B) fiat system. C) barter system. D) none of the above.