author = { Kleiner, Morris M. National Bureau of Economic Research Xu, Ming },

title = { Occupational Licensing and Labor Market Fluidity },

publisher = {National Bureau of Economic Research},

year = {2020},

booktitle = {NBER working paper series ; no. w27568},

address = { Cambridge, Mass },

url = { http://slubdd.de/katalog?TN_libero_mab2 }