The Impact of State Licensing Regulations on Low-Skilled Immigrants: The Case of Vietnamese Manicurists
以越南美甲师为例，研究州级职业许可法规对低技能移民劳动力市场的影响，发现许可要求可能限制移民就业机会。
The Impact of State Licensing Regulations on Low-Skilled Immigrants: The Case of Vietnamese Manicurists by Maya N. Federman, David E. Harrington and Kathy J. Krynski. Published in volume 96, issue 2, pages 237-241 of American Economic Review, May 2006