The PPI is a price index that measures the cost to consumers of a typical basket of goods sold by firms

The above figure shows the market for oil. Because of the development of a new deep sea drilling technology the

A) demand curve shifts from D1 to D2 and the supply curve does not shift. B) demand curve shifts from D1 to D2 and the supply curve shifts from S1 to S2. C) demand curve does not shift, and the supply curve shifts from S2 to S1. D) demand curve does not shift, and the supply curve shifts from S1 to S2.

Which of the following would likely cause an increase in the supply of single-serve coffee makers?

A) a decrease in the number of consumers demanding single-serve coffee makers B) an increase in the price of single-serve coffee makers C) a decrease in the cost of manufacturing single-serve coffee makers D) a widespread expectation that the price of single-serve coffee makers will rise in the future