Bounded Rationality and Social Concerns in Decision Processes: Theory, Experiments, and Applications
Abstract
Individual decisionmaking is the basic building block for studying complex environments, such as markets, political systems, and social dynamics. The maintained theory of individual decisionmaking is embodied by the neoclassical rational agent, whose only concern is the maximization of utility of his material consumption. Two qualities of this agent are especially important for the research we will undertake: He has perfect understanding of the problems he faces  today and in the future  and unbounded computational ability to solve them. He also has no regard for the consumption of other members of the society or for their feelings about his actions. However, sizable empirical and experimental evidence shows that departure from these qualities is robust and significant. Such failure to incorporate bounded rationality and social concerns has proven critical in diminishing the maintained theory’s predictive power in socially relevant and complex situations, such as lifetime consumption and saving, taxation and expenditure policy, labour search and wage determination.
The objective of this project is to bring these phenomena into the description of individual decision processes, to test their implications, and to develop some important applications. A novel and central feature of our approach is the attempt to retain the parsimonious methodological approach of economic modelling, which has scored groundbreaking successes in matters as diverse as the design of auctions, markets, contracts, and voting mechanisms. Our project envisions the development of theory on individual decisionmaking, the use of experiments to illuminate and test the theory, and the concrete application of theory  mainly to financial markets. The project will significantly contribute to enhancing our understanding of the abovementioned socially relevant situations. The explanatory power of our approach will be guaranteed by the continuous feedback between theory and evidence – experimental and neuroexperimental, and by an emphasis on widescope, as opposed to ad hoc, modelling.
Published Papers
 F. Maccheroni, M. Marinacci, and A. Rustichini, Pride and Diversity in Social Economics, American Economic Journal: Microeconomics, forthcoming.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and A. Rustichini, Niveloids and Their Extension: Risk Measures on Small Domains, Journal of Mathematical Analysis and Applications, forthcoming.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Choquet Integration on Riesz Spaces and Dual Comonotonicity, Transactions of the American Mathematical Society, forthcoming.
 F. Maccheroni, M. Marinacci, and D. Ruffino, Alpha as Ambiguity: Robust MeanVariance Portfolio Analysis, Econometrica, 81, 10751113, 2013.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Classical Subjective Expected Utility, Proceedings of the National Academy of Sciences, 110, 67546759, 2013.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Ambiguity and Robust Statistics, Journal of Economic Theory, 148, 9741049, 2013.
 F. Maccheroni, M. Marinacci, and A. Rustichini, Social Decision Theory: Choosing within and between Groups, Review of Economic Studies, 79, 15911636, 2012.
 Ales Cerny, F. Maccheroni, M. Marinacci, and A. Rustichini, On the computation of optimal monotone meanvariance portfolios via truncated quadratic utility, Journal of Mathematical Economics, 48, 386395, 2012.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Probabilistic Sophistication, Second Order Stochastic Dominance, and Uncertainty Aversion, Journal of Mathematical Economics, 48, 271283, 2012.
 P. Klibanoff, M. Marinacci, and S. Mukerji, On the Smooth Ambiguity Model: A Reply, Econometrica, 80, 13031321, 2012.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Signed Integral Representations of Comonotonic Additive Functionals, Journal of Mathematical Analysis and Applications,385, 895912, 2012.
 M. Marinacci and L. Montrucchio, Finitely WellPositioned Sets, Journal of Convex Analysis, 19, 249279,2012.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Risk Measures: Rationality and DiversiĀ
cation, Mathematical Finance, 21, 743774, 2011.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Uncertainty Averse Preferences, Journal of Economic Theory, 146, 12751330, 2011.
 S. CerreiaVioglio, F. Maccheroni, M. Marinacci, and L. Montrucchio, Complete Monotone Quasiconcave Duality, Mathematics of Operations Research, 36, 321339, 2011.
 M. Marinacci and L. Montrucchio, Necessary and Sufficient Conditions for Optima in Reflexive Spaces, SIAM Journal on Optimization, 21, 174192, 2011.
 M. Marinacci and L. Montrucchio, Unique Solutions for Stochastic Recursive Utilities, Journal of Economic Theory, 145, 17761804,2010.
 I. Gilboa, F. Maccheroni, M. Marinacci, and D. Schmeidler, Objective and Subjective Rationality in a Multiple Prior Model, Econometrica, 78, 755770, 2010.
Working Papers
 Maxmin Expected Utility on a Subjective State Space: Convex Preferences under Risk, by S. Cerreia Vioglio, 2009
 Does Uncertainty Vanish in the Small? The Smooth Ambiguity Case, by F. Maccheroni, M. Marinacci and D. Ruffino, 2011
 Objective Rationality and Uncertainty Averse Preferences, by S. Cerreia Vioglio, 2012
 Selfconfirming Equilibrium and Model Uncertainty, by P. Battigalli, S. CerreiaVioglio, F. Maccheroni and M. Marinacci, 2012
