Refer to the graphs. Assume that pizza is measured in slices and beer in pints. In which of the graphs is the opportunity cost of a pint of beer the lowest?

The government's fixing of exchange rates is not unlike the government's fixing of other prices, such as the price of rental units

Indicate whether the statement is true or false

Many economists believe that in our modern economy, firm size is most directly determined by

a. concentration ratios that decrease as the number of firms decreases b. diseconomies of scale that make it less costly to increase firm size c. easy entry of new firms when there are economies of scale d. government policies that dictate optimal firm investment levels e. modern technology that gives an advantage to large-scale production methods