 The relevance of laboratory experimentation remains controversial. Behavioral economists are enthusiastic, while more traditional theorists question whether experimental findings can be generalized to non-experimental contexts and, more generally, concerning the possibilities of learning from experiments (Caplin and Schotter 2008). For discussions of experimental economics, see Guala (2000a, b, 2005), Hey (1991), Kagel and Roth (1995, 2016), Plott (1991), Smith (1991), Starmer (1999), Camerer (2003), Bardsley and Cubitt 2009, Durlauf and Blume (2009), Branas-Garza and Cabrales (2015), Fréchette and Schotter (2015), Jacquemet and L’Haridon (2018), and the June, 2005 special issue of the Journal of Economic Methodology. Al Roth’s Game Theory, Experimental Economics, and Market Design Page (http://kuznets.fas.harvard.edu/~aroth/alroth.html) is a useful source. For recent work on behavioral economics see the Journal of Behavioral Economics, the Review of Behavioral Economics, and Behavioural Public Policy.