If the price of milk was $1.25 a gallon and it is now $2.25 a gallon, what is the percentage change in price?

Companies that enable investors to use their savings to buy financial securities are referred to as:

A) hedge fund companies. B) banks. C) private equity funds. D) asset management companies.

The natural rate hypothesis asserts that

A) changes in the unemployment rate from changes in the inflation rate are temporary. B) changes in the unemployment rate are natural and long-lasting. C) when prices change, the inflation rate changes temporarily and then returns to its natural rate. D) changes in the natural unemployment rate are only temporary. E) price changes occur at a natural rate, near a 6 percent average inflation rate.