1967

1968

1969

1974

an advance in technology

an increase in the labour force

an increase in the capital stock

a reduction in unemployment

a shift in the production possibilities frontier outward

a movement from inside the curve toward the curve

a shift in the production possibilities frontier inward

a movement along a production possibilities frontier toward capital goods

generate a deadweight loss that is unaffected by the time period over which it is measured.

cause a greater deadweight loss in the long run when compared to the short run

cause a greater deadweight loss in the short run when compared to the long run

none of these answers

the unscrupulous to enter the underground economy.

the elderly to retire early.

all of the things described in these answers

second earners to stay home.