The price elasticity of demand for heroin has been estimated at 0.8

1. Interpret this price elasticity.If the price of heroin rises by 1%, by how much with the quantity demanded change?
2. Much of the heroin consumed in the United States is grown and processed in Mexico.Suppose the government steps up its enforcement of heroin crossing the U.S. border, shifting the supply curve of heroin inward (to the left).What will happen to the revenues of heroin dealers in the United States?Why?