https://doi.org/10.1257/app.1.2.1 https://doi.org/10.1073/pnas.0800703105 https://doi.org/10.3386/w15391 https://doi.org/10.1162/003355302760193931 https://doi.org/10.1162/003355302760193940 https://doi.org/10.1257/aer.99.4.1245 https://doi.org/10.3386/w15087 https://doi.org/10.1515/9780691212845 https://doi.org/10.1136/bmj.c2220 https://doi.org/10.1257/mic.3.4.143 https://doi.org/10.1162/qjec.2009.124.4.1497 https://doi.org/10.1126/science.1212382 https://doi.org/10.2307/2991881 https://doi.org/10.2307/2297915 https://doi.org/10.3386/w10513 https://doi.org/10.1111/j.1468-0262.2004.00539.x https://doi.org/10.1086/324385 https://doi.org/10.1257/app.2.1.33 https://doi.org/10.1093/wber/3.1.1 https://doi.org/10.1596/0-8018-5254-4 https://doi.org/10.1257/app.1.3.1 https://doi.org/10.31899/pgy1994.1003 https://doi.org/10.3386/w16933 https://doi.org/10.1162/qjec.2009.124.4.1541 https://doi.org/10.1073/pnas.0800221105 https://doi.org/10.1093/wber/lhg013 https://doi.org/10.3386/w10498 https://doi.org/10.1016/j.jdeveco.2005.05.001 https://doi.org/10.3386/w17207 https://doi.org/10.1162/qjec.2007.122.4.1561 https://doi.org/10.1086/593333 https://doi.org/10.1257/aer.100.2.125 https://doi.org/10.1162/00335530360698496 https://doi.org/10.1257/000282806777212350 https://doi.org/10.1086/340778 https://doi.org/10.1037/0033-295X.109.1.3 https://doi.org/10.1111/0034-6527.00326 https://doi.org/10.1086/508716 https://doi.org/10.1162/qjec.2009.124.1.349 https://doi.org/10.1257/app.2.2.118 https://doi.org/10.1162/qjec.2010.125.2.515 https://doi.org/10.1162/REST_a_00074 https://doi.org/10.1126/science.1200138 https://doi.org/10.1136/bmj.327.7407.126 https://doi.org/10.3386/w14541 https://doi.org/10.2307/146179 https://doi.org/10.1111/0034-6527.00365 https://doi.org/10.1162/qjec.2008.123.3.1287 https://doi.org/10.1111/j.1468-0297.2009.02306.x https://doi.org/10.1257/aer.96.4.1225 https://doi.org/10.1162/qjec.2008.123.3.1251 https://doi.org/10.1162/003465399767923809 https://doi.org/10.1006/jesp.1998.1373 https://doi.org/10.1037/0033-2909.105.3.409 https://doi.org/10.2307/145670 https://doi.org/10.2307/20075898 https://doi.org/10.1086/262050