【单选题】The figure illustrates the labor market for fast food restaurants in a small city in Peru. What would be the effects of a minimum wage imposed at $4 per hour?
A.
a shortage of 200 hours
B.
a shortage of 100 hours
C.
a surplus of 200 hours
D.
nothing because the minimum wage has no effect on the equilibrium price and quantity
【单选题】A business currently sells mobile phones in the domestic market for $80. The cost of the phones includes $50 variable cost per unit and $20 fixed cost per unit. A bid is received from an overseas cust...