Arock-climbing school faces two demand curves. the demand by local residents is q = 400 – 0.5p, and the demand by others is q = 500 – 0.5p. the marginal cost of serving either local residents or others is constant at $100. if the rock-climbing school practices third-degree price discrimination, it will charge local residents and others a price of and respectively.

On coral island in 2012, the labor force is 12,000, the unemployment rate is 10 percent, and the labor force participation rate is 60 percent. during 2013, 200 unemployed people found jobs and the working-age population increased by 1,000. the total number of people in the labor force did not change. the working-age population at the end of 2013 was the unemployment rate at the end of 2013 was round up to the second decimal. the labor force participation rate at the end of 2013 was round up to the second decimal.