Associate Professor Matthew Ryan

Staff Profile Image of Matthew Ryan

Associate Professor of Economics

Phone: +6499219999 ext 5812



BA (Economics and Philosophy), University of Auckland
Bachelor of Commerce and Administration (Honours), Victoria University of Wellington
PhD in Economics, Yale University

Memberships and Affiliations:

  • Member, Centre for Mathematical Social Science, University of Auckland
  • Member, ATE Research Network, Massey University
  • Member, American Economic Association (


I joined AUT in August 2014.  My previous appointments were with the University of Auckland and the Australian National University.  I’m am also a member (and co-founder) of the Centre for Mathematical Social Science (CMSS), serving as its Director in 2013.  The CMSS is based at the University of Auckland, but has participation from AUT and Massey, as well as a number of international affiliates.  It is a multi-disciplinary research centre that applies mathematical and computational techniques to address questions from economics, political science, psychology and philosophy.

Teaching Areas:


Research Areas:

•    Decision theory
•    Risk and uncertainty
•    Auction markets

Research Summary:

My research focusses on how people make decisions in environments exposed to risk or uncertainty.  Much of this work is theoretical, but I have also worked on applications ranging from pharmaceutical advertising to public-private partnerships to entrepreneurial decision-making. 

Current Research Projects:

Stochastic models of choice under risk and uncertainty


Programme Committee Chair, 35th Australasian Economic Theory Workshop, AUT (13-14 February, 2017)  



M. RYAN. “Uncertainty and Binary Stochastic Choice,” Economic Theory (forthcoming) 


Rigotti, L., M. RYAN and R. Vaithianathan. “Throwing Good Money after Bad,” Decisions in Economics and Finance 39(2): 175–202.
RYAN, M. “Essentiality and Convexity in the Ranking of Opportunity Sets” Social Choice and Welfare (published online 15 September 2016, doi: 10.1007/s00355-016-0994-8).
Qin, D. and M. RYAN. “Rationalizability of Plott Consistent Choice Functions: A Corrigendum” Social Choice and Welfare 47(3): 761–762.


RYAN, M. “A Strict Stochastic Utility Theorem” Economics Bulletin 35(4): 2664-2672.
Menezes, F. and M. RYAN. “Default and Renegotiation in PPP Auctions” Journal of Public Economic Theory 17(1): 49-77.
RYAN, M. and F. Menezes. “Public-Private Partnerships for Transport Infrastructure: Some Efficiency Risks” New Zealand Economic Papers 49(3): 276-295.
RYAN, M. and R. Vaithianathan. “The Regulation of Direct-to-Consumer Advertising of Pharmaceuticals in a Managed Care Setting” Journal of Public Economic Theory.  Published online 22 September 2014.


RYAN, M. “Belief Functions and Preference for Flexibility” Economics Bulletin 34(1): 581-588.
RYAN, M. “Path Independent Choice and the Ranking of Opportunity Sets” Social Choice and Welfare 42(1): 193-213.

2012    RYAN, M. and A. Rogers. “Additivity and Uncertainty” Economics Bulletin 32(3): 1858-1864.

RYAN, M. and R. Vaithianathan. “Verifiability and Neologism-Proofness in a Sender-Receiver Game” Journal of Economic Behavior and Organization 79(3): 256-262.
 Rigotti, L., M. RYAN and R. Vaithianathan. “Optimism and Firm Formation,” Economic Theory 46(1): 1-38.                               

2010    RYAN, M. “Mixture Sets on Finite Domains” Decisions in Economics and Finance 33(2): 139-147.


Menezes, F. and M. RYAN, “Coasian Dynamics in Repeated English Auctions” International Journal of Game Theory 38: 349-366.                     
Bossert, W., M. RYAN and A.S. Slinko, “Orders on Subsets Rationalised by Abstract Convex Geometries” Order 26(3): 237-244.               
RYAN, M. “Generalisations of SEU: A Geometric Tour of Some Non-Standard Models” Oxford Economic Papers 61(2): 327-354.                        


RYAN, M. “Risk Aversion in RDEU” Journal of Mathematical Economics 42(6): 675-697. 
Grant, S., A. Kajii, F. Menezes and M. RYAN. “Auctions with Options to Re-Auction” International Journal of Economic Theory 2: 17-39.                 

2005     Menezes, F. and M. RYAN. "Reserve Price Commitments in Auctions" Economics Letters 87(1): 35-39.                                     


RYAN, M. and R. Vaithianathan. "Adverse Selection and Insurance Contracting: A Rank-Dependent Utility Analysis" Contributions to Theoretical Economics 3(1): Article 4.
RYAN, M. and R. Vaithianathan. “Medical Insurance with Rank Dependent Utility” Economic Theory 22: 689-698.                                          


RYAN, M.J. “Mathematicians as Great Economists: John Forbes Nash, Jr.” Agenda 9: 121-134.                                
RYAN, M.J. “What Do Uncertainty-Averse Decision-Makers Believe?”  Economic Theory 20: 47-65.                                                  
RYAN, M.J. “Violations of Belief Persistence in Dempster-Shafer Equilibrium” Games and Economic Behavior 39: 167-174.                 

2001     RYAN, M.J. “Capacity Updating Rules and Rational Belief Change” Theory and Decision 51: 73-87. 


  • University of Auckland Business School Research Excellence Award (New Researcher category), 2003.
  • A.R. Bergstrom Prize in Econometrics, New Zealand Association of Economists, 1996

Last updated: 12-Jan-2017 1.10pm

The information on this page was correct at time of publication. For a comprehensive overview of AUT qualifications, please refer to the Academic Calendar.