“…Ecological rationality explains why individual decision rules that deviate from axiomatic rationality can perform to a sufficiently high level of performance in a particular class of decision domains (Gigerenzer and Goldstein, 1996;Gigerenzer and Selten, 2001;Gigerenzer et al, 1999;Berg and Gigerenzer, 2006;Berg and Gigerenzer, 2007;Berg and Gigerenzer, 2010;Berg et al, 2016a;Berg, 2010;Berg, 2014b;Berg, 2014a;Berg, 2015;Berg, 2017). It also explains less-is-more effects in regulation and institutional design (Bennis et al, 2012)-for example, the virtues of simple legal codes (Epstein, 1995); light regulation of 'tragedy of the commons' problems in public goods (Berg and Kim, 2015); beneficial price discrimination in public healthcare (Berg and Kim, 2018b); gains from decentralization of social assistance (Berg and Gabel, 2015;Berg and Gabel, 2017a;Berg and Gabel, 2017b); meritocratic education institutions based on simplicity (Berg, 2009;Berg and Nelson, 2016); the use of name recognition in scientific networks (Berg and Faria, 2008); decentralized information sharing (Kameda et al, 2011;Finin et al, 2009); problems caused by adding new protected classes under anti-discrimination law (Berg and Lien, 2002;Berg and Lien, 2006;Berg and Lien, 2009); decentralized solutions to Schelling's neighbourhood segregation problem Berg et al, 2013); simplicity and transparency in government valuation of real estate (Berg, 2006a); behavioral sophistication in the design of labor market policy (Berg, 2006b); the ecological rationality of private institutional norms established by Islamic Banks (Berg and Kim, ...…”