The relationship that implies that the nominal interest rate is equal to the real interest rate plus expected inflation is called the

During the middle of the 2000s, the price of gasoline soared and there was a movement to switch to fuels made from a mixture of gasoline and ethanol. Ethanol can be made from corn

The price of corn skyrocketed and then, after a couple of years, the price decreased. What might have led to these price changes in the corn market?

Which of the following is an example of an economic trade-off that a firm has to make?

A) deciding what profit margin it desires for its products B) whether or not consumers will buy its products C) whether it is cheaper to produce with more machines or with more workers D) deciding why consumers want its products