* Alan Kirman, [http://link.springer.com/article/10.1007/s11403-006-0005-8 Heterogeneity in Economics], Journal of Economic Interaction and Coordination, May 2006, Volume 1, Issue 1, pp 89-117 | * Alan Kirman, [http://link.springer.com/article/10.1007/s11403-006-0005-8 Heterogeneity in Economics], Journal of Economic Interaction and Coordination, May 2006, Volume 1, Issue 1, pp 89-117 |