An economy growing at a steady rate of 2.3 percent per year doubles in size approximately every __________ years

Describe an asset price bubble and give examples. Explain why it is extremely difficult if not impossible for the Federal Reserve to prevent such bubbles

The Solo Coal Mine is the only employer in the small town of Way out there. The market supply of coal miners is Qs = 0.02W - 200, where W is the annual wage of a coal miner and Q is the number of people who would accept employment as a coal miner. What is the coal mine's marginal expenditure when it hires 100 coal miners?

A. $15,000 B. $20,000 C. $10,000 D. $1,000,000