of the U.S. population, oversampling immigrants, to study trust, positive, and negative reciprocity between first …

representative population into the lab, and we compare their behavior to the behavior of different student populations. Our study … shows that students may not be informative of the role of social preferences in the broader population. We find that the …. -- social preferences ; representative population ; dictator game ; trust game …

Bergin and Lipman (1996) show that the refinement effect from the random mutations in the adaptive population dynamics … population states. We here model mutation rates as endogenously determined mistake probabilities, by assuming that players with …

, Mailath and Rob (1993) and Young (1993) is due to restrictions on how these mutation rates vary across population states. We …