“…See https://e360.yale.edu/features/greenlock-a-visitor-crush-is-overwhelming-americas-national-parks.7 Other scholars have suggested pricing policies to discuss various issues related to national parks, but not the issue of overcrowding. See, for example,Mulwa, Kabubo-Mariara, and Nyangena (2018) andMukanjari, Muchapondwa, and Demeke (2020). 8 See, for example,Walls (2013) on this point for U.S. state parks.…”