1. A new medical study released suggests that the consumption of dark chocolate helps prevent colorectal cancer. At the same time, cocoa growers in Brazil have experienced a large crop.What will be the effect of these on the price and quantity of dark chocolate?Explain.

2. Sushi bars are opening in vast numbers in American cities. Consumption of sushi, the raw-fish delicacy from Japan, has increased by a large amount in the United States in recent years. Nevertheless, the price of sushi has remained relatively constant.

What happened to the supply and demand for sushi? Why has the price of sushi remained constant? What happened to the equilibrium quantity of sushi? Explain