保护主义、逃避和家庭福利：来自尼日利亚进口禁令的证据（英）

11195 Protectionism, Evasion and Household Welfare Evidence from Nigeria’s Import Bans Erhan ArtucGuillermo FalconeGuido PortoBob Rijkers Policy Research Working Paper 11195 Abstract This paper analyzes the welfare impacts of import bans inNigeria, and how these are shaped by evasion. Bans were noteffectively enforced, and contributed to informal trade. The by 5.8% on average. However, price increases are substan-tially attenuated for goods for which trade policy is harderto enforce. Import bans disproportionately hurt the rich: This paper is a product of the Office of the Chief Economist, Africa Region. It is part of a larger effort by the World Bankto provide open access to its research and make a contribution to development policy discussions around the world. PolicyResearch Working Papers are also posted on the Web at http://www.worldbank.org/prwp. The authors may be contacted ateartuc@worldbank.org, gfalcone1@worldbank.org, guido.porto@depeco.econo.unlp.edu.ar, and brijkers@worldbank.org. This paper combines several sources of data, described below.All variable definitions, their orthogonality condition implicitly places greater weight on large trade flows, PPML estimates banned goods (as is shown in Figure A8a). In both urban and rural areas the share of income The Economic Journal, 1989,99(395), 1–37. 2001-2012, 2015-20202001-2003, 2006-2020 0.2080.1670.2490.374