Explain how the following events influence u. s. production possibilities. if some retail workers in the united states are re-employed building dams and wind farms, a. the u. s. ppf will shift inward b. a movement along the u. s. ppf will occur your answer is correct. c. the u. s. ppf will shift outward if more americans take early retirement, a. the u. s. ppf will shift inward your answer is correct. b. the u. s. ppf will shift outward c. a movement along the u. s. ppf will occur if a drought devastates california, a. a movement along the u. s. ppf will occur b. the u. s. ppf will shift outward c. the u. s. ppf will shift inward