Baker, Matthew C.; Stratmann, Thomas (October 2021). "Barriers to entry in the healthcare markets: Winners and Losers from certificate-of-need laws". Socio-Economic Planning Sciences. 77: 101007. doi:10.1016/j.seps.2020.101007. ISSN0038-0121.
Snider, Connan; Williams, Jonathan W. (2015-12-01). "Barriers to Entry in the Airline Industry: A Multidimensional Regression-Discontinuity Analysis of AIR-21". The Review of Economics and Statistics. 97 (5): 1002–1022. doi:10.1162/REST_a_00455. ISSN0034-6535. S2CID57571664.
Cullmann, Astrid; Schmidt-Ehmcke, Jens; Zloczysti, Petra (January 2012). "R&D efficiency and barriers to entry: a two stage semi-parametric DEA approach". Oxford Economic Papers. 64 (1): 176–196. doi:10.1093/oep/gpr015. ISSN0030-7653.
Lieberman, Marvin (June 1987). "Excess Capacity as a Barrier to Entry: An Empirical Appraisal". The Empirical Renaissance in Industrial Economics. 35 (4). Wiley: 607–627. doi:10.2307/2098590. JSTOR2098590.
Lieberman, Marvin (June 1987). "Excess Capacity as a Barrier to Entry: An Empirical Appraisal". The Empirical Renaissance in Industrial Economics. 35 (4). Wiley: 607–627. doi:10.2307/2098590. JSTOR2098590.
Snider, Connan; Williams, Jonathan W. (2015-12-01). "Barriers to Entry in the Airline Industry: A Multidimensional Regression-Discontinuity Analysis of AIR-21". The Review of Economics and Statistics. 97 (5): 1002–1022. doi:10.1162/REST_a_00455. ISSN0034-6535. S2CID57571664.
Baker, Matthew C.; Stratmann, Thomas (October 2021). "Barriers to entry in the healthcare markets: Winners and Losers from certificate-of-need laws". Socio-Economic Planning Sciences. 77: 101007. doi:10.1016/j.seps.2020.101007. ISSN0038-0121.
Snider, Connan; Williams, Jonathan W. (2015-12-01). "Barriers to Entry in the Airline Industry: A Multidimensional Regression-Discontinuity Analysis of AIR-21". The Review of Economics and Statistics. 97 (5): 1002–1022. doi:10.1162/REST_a_00455. ISSN0034-6535. S2CID57571664.
Cullmann, Astrid; Schmidt-Ehmcke, Jens; Zloczysti, Petra (January 2012). "R&D efficiency and barriers to entry: a two stage semi-parametric DEA approach". Oxford Economic Papers. 64 (1): 176–196. doi:10.1093/oep/gpr015. ISSN0030-7653.