Year:2009

Zak, P. J., Kurzban, R., Ahmadi, S., Swerdloff, R.S., Park, J., et al. (2009)Testosterone Administration Decreases Generosity in the Ultimatum Game. PLoS ONE 4(12): e8330. doi: 10.1371/journal.pone.0008330   [Digital version] 

Barraza, J. A. & Zak, P. J. (2009).Empathy toward Strangers Triggers Oxytocin Release and Subsequent Generosity. Annals of the New York Academy of Sciences,1167: 182-189.   [Digital version]

Year:2008

Zak, P. J. (2008). The Neurobiology ofTrust. Scientific American, June:88-95.   [Digital version]

Zak, P. J. (2008). Moral Markets: The Critical Role of Values in the Economy. Princeton University Press.   [Digital version]

Morhenn, V. B., Park, J. W., Piper, E. & Zak, P. J. (2008). Monetary sacrifice among strangers is mediated by endogenous oxytocin release after physical contact. Evolution and Human Behavior, 29: 375–383.  [Digital version]

Hoge, E. A., Pollack, M. H., Kaufman, R. E., Zak, P. J. & Simon, N. M. (2008). Oxytocin Levels in Social Anxiety Disorder. CNS Neuroscience &Therapeutics, 165–170(14).   [Digital version]

Year:2007

Zak, P. J. (2007). The neuroeconomics of trust.  Ch 2. in Renaissance inBehavioral Economics.  R. Frantz, Ed. Routledge   [Digital version]

Park, J. W. & Zak, P. J. (2007). Neuroeconomics Studies. Analyse and Kritik 29, 47-59.   [Digital version]

Zak, P. J., Stanton, A. A. & Ahmadi, S. (2007). Oxytocin Increases Generosity in Humans. Public Library of Science ONE 2(11):e1128. doi:10.1371/journal.pone.0001128,  [Digital version]

Year:2006

Zak, P. J. & Fakhar, A. (2006). Neuroactive Hormones and Interpersonal Trust: International Evidence. Economics & Human Biology, (4),412-429.  [Digital Version]

Year:2005

Zak, P. J. (2005). Trust: a temporary human attachment facilitated by oxytocin. Behavioral and Brain Sciences, 28(3), 368-369.   [Digital version]

Kosfeld, M., Heinrichs, M., Zak, P. J. Fischbacher, U. & Fehr, E. (2005). Oxytocin increases trust in humans. Nature, 435(2): 673-676.   [Digital version]

Zak, P. J., Kurzban, R. & Matzner,W. T. (2005). Oxytocin is associated with human trustworthiness. Hormones and Behavior, (48): 522-527.   [Digital version]

Zak, P. J., Borja, K., Matzner, W. T. & Kurzban, R. (2005). The neuroeconomics of distrust: sex differences inbehavior and physiology. American Economic Review Papers and Proceedings, 95(2): 360-363.   [Digital version]

Year: 2004

Zak, P. J., Kurzban, R. & Matzner, W. T. (2004). The neurobiology of trust. Annals of the New York Academy of Sciences, 1032: 224-227.  

Hirshleifer, J. J. & Zak, P. J.(2004). The Bioeconomics of Social Behavior: Introduction. Journal of Bioeconomics, 6(1), 1-2.   [Digital version]

Zak, P. J. (2004). Neuroeconomics. Philosophical Transactions of the RoyalSociety B (Biology), 359(1451),1737-1748.   [Digital version]

Year:2003

Denzau, A. T. & Zak, P. J. (2003).Explore and Exploit: An Evolutionary Analysis of Institutional Dynamics. In Human Nature and Public Policy: An Evolutionary Approach, Albert Somit and Steven A. Peterson, Editors, pp139-160, Palgrave Macmillan.   

Zak, P. J. (2003). Trust. Capco Institute Journal of Financial Transformation, 7, 13-21.   [Digital version]

Year:2002

Geddes, R. & Zak, P. J. (2002). The Rule of One-Third. Journal of Legal Studies, 31(1), 119-137.   [Digital version]

Zak, P. J. (2002). Institutions, Property Rights and Growth. Louvain Economic Review, 68(1-2),55-73.   

Knack, S. & Zak, P. J. (2002). Building Trust: Public Policy, Interpersonal Trust, and Economic Development. Supreme Court Economic Review, 10, 91-107.   [Digital version]

Zak, P. J. & Park, K. W. (2002). Population Genetics and Economic Growth. Journal of Bioeconomics, 4(1), 1-37.  [Digital version]

Year:2001

Zak, P. J. & Knack, S. (2001). Trust and Growth. The Economic Journal, 111, 295-321.   [Digital version]

Zak, P. J. & Denzau, A.T. (2001). Economics is an Evolutionary Science. In Evolutionary Approaches in the Behavioral Sciences: Toward a Better Understanding of Human Nature, Albert Somit and Stephen Peterson, Editors, pp31-65, JAI Press.   [Digital version]

Year:2000

Zak, P. J. (2000). Larceny. Economics of Governance, 1, 157-179.   [Digital version]