The Value of Groups

By S. Heap, Daniel John Zizzo. 2009

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Ingroup favoritism in cooperation: a meta-analysis. (2014, result): “Unfortunately, however, primary studies using these contrasts provide mixed evidence, finding evidence for either ingroup favoritism (e.g., Yamagishi & Mifune, 2009; see also Gaertner, Iuzzini, Witt, & Oriña, 2006; Yamagishi & Kiyonari, 2000) or outgroup derogation (e.g., Hargreaves Heap & Zizzo, 20”
Trust games: A meta-analysis (2011, unknown): “M islin /Journal of Econom ic Psychology 32 (2011) 865– 889 883 Appendix B (continued) Paper Country Nr. of subjects Sender end in USD Av % sent Av % ret Rate of ret Double blind Receiver endowed Anonymous Student Strategy method Play both roles Payment random Play additional games Real counterpart ”
Robustness checks and robustness tests in applied economics (2014, unknown): “Of these, 23 perform a robustness check along the lines just described, using a variety of estimators suitable to the data, such as ordinary least squares, logit, instrumental variables , or panel methods (Adams, Einav, and Levin, 2009, Alfaro and Charlton, 2009, Angelucci and De Giorgi, 2009, Angri”