A 4. Externalities are a. side effects passed on to a party other than the buyers and sellers in the market. b. side effects of government intervention in markets. c. external forces that cause the price of a good to be higher than it otherwise would be. d. external forces that help establish equilibrium price. _C_ 5. Market power refers to the a. side effects that may occur in a market. b. government regulations imposed on the sellers in a market. c. ability of market participants to influence price. d. forces of supply and demand in determining equilibrium price