Determine how each of the following would affect the U.S. Production Possibilities Frontier (PPF).

Scenario A law that requires individuals to enter lines of work for which they are not suited A decrease in the unemployment rate An increase in the number of illegal immigrants A war that takes place on U.S. soil The discovery of a new oil field Shift Shift Outward Inward Movement to a Point Closer to the Frontier Movement to a Point Inside the Frontier