During the 1960s and early 1970s, economists believed that the Phillips curve indicated
a. that higher inflation was the price for more unemployment.
b. that higher levels of employment could be achieved with lower inflation.
c. a menu of choices for policy makers.
d. All of the above are correct.
Regarding demand elasticity, which of the following statements is correct?
a. If demand for seller’s product is elastic, a price increase will decrease total revenue.
b. If demand for seller’s product is elastic, a price increase will increase total revenue.
c. If demand is exactly unit-elastic, an increase in price will raise total revenue.
d. If demand is exactly unit-elastic, an increase in price will raise total revenue.
Elasticity computations related to demand carry a minus sign to show that the demand
curve is negatively sloped.
a. True
b. False