Gautier, PieterA. and Holzner, ChristianL. (2017). Simultaneous search and efficiency of entry and search intensity American Economic Journal: Microeconomics, 9(3):245--282.
Weber, M. and Schram, A. (2017). The Non-Equivalence of Labour Market Taxes: A Real-Effort Experiment Economic Journal, 127(604):2187--2215.