The topic is Economic Efficiency in Public economics （2000+ words, more reference is better)

This paper should contain an introduction which also lays out the research question to be addressed, a review of the relevant literature, the exploration of the research question proper, implications, and conclusion

The research question is:

1.The Welfare Costs of Tariffs, Monopolies, and Theft

2.Public Policy Toward Pecuniary Externalities

This is just one reference. Tullock, Gordon. (1967). “The Welfare Costs of Tariffs, Monopolies, and Theft. Western Economic Journal. Vol. 5, No. 3, Pg. 224-232