hat are the four major sources of market​ failure? explain briefly why each prevents the competitive market from operating efficiently. part 2 the four major sources of market failure are part 3 a. market​ power, the​ government, externalities, and private goods. b. ​, ​, complete​ information, and externalities. c. market​ power, incomplete​ information, externalities, and public goods. d. market​ power, incomplete​ information, ​, and . e. ​competition, symmetric​ information, externalities, and public goods.