| A | B |
| diminishing marginal return | benefits will eventually be negative |
| union strikes | withholding labor |
| demand is how much consumers want | at different prices at one time |
| price in elastic (insulin) | the good is a necessity |
| supply | willing and able to sell at a range of prices |
| market equilibrium | where supply and demand are equal |
| Federal Reserve | controls the country's money supply |
| substitute goods | satisfy the similar wants |
| Ceteris Paribus | all other things held constant |
| subsidy | government trying to encourage business |