Games and decisions with bounded rationality: theory and economic implications. This project will develop concepts and tools for decision making in complex environments, where it is impossible to fully characterise the possible outcomes and factors that may affect them. A central goal will be to integrate heuristic rules such as the precautionary principle with the more formal approach adopted in benefit-cost analysis.
Rank-dependent choice equilibrium. This project aims to develop and test a new statistical theory of games, Rank-Dependent Choice Equilibrium (RDCE), which has the potential to unify and improve on existing approaches where the extreme reliance on perfect decision making and perfect foresight has raised doubts about their empirical relevance. The project intends to develop the theoretical foundations of RDCE, explore its relation with various parametric approaches, and evaluate RDCE via meta stu ....Rank-dependent choice equilibrium. This project aims to develop and test a new statistical theory of games, Rank-Dependent Choice Equilibrium (RDCE), which has the potential to unify and improve on existing approaches where the extreme reliance on perfect decision making and perfect foresight has raised doubts about their empirical relevance. The project intends to develop the theoretical foundations of RDCE, explore its relation with various parametric approaches, and evaluate RDCE via meta studies and stress tests. Expected outcomes of RDCE include a paradigm shift in game theory, resulting in broader acceptance and adoption of statistical game theory and to more robust policy recommendations.Read moreRead less
Designing Efficient and Equitable Voting Mechanisms. The most commonly used method for collective decision making, majority voting, is generally not efficient as it does not allow voters to express the intensity of their preferences. In addition, majority voting suffers from the tyranny of the majority, i.e. the risk of repeatedly excluding minority groups from representation. A final downside of majority voting is its winner-take-all nature, i.e. it provides no compensation for losing voters. T ....Designing Efficient and Equitable Voting Mechanisms. The most commonly used method for collective decision making, majority voting, is generally not efficient as it does not allow voters to express the intensity of their preferences. In addition, majority voting suffers from the tyranny of the majority, i.e. the risk of repeatedly excluding minority groups from representation. A final downside of majority voting is its winner-take-all nature, i.e. it provides no compensation for losing voters. This project concerns the design of alternative mechanisms that avoid these shortcomings and robustly deliver efficient and equitable outcomes. The project develops the theory underlying these novel mechanisms, tests them in a range of environments, and delivers an implementation for practical use.
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Introspection, Learning, and Equilibrium in Games: Theory and Experiment. Game theory is increasingly being used in the social sciences, but the extreme reliance on perfect decision making and perfect foresight has raised doubts about its empirical relevance. This scepticism is reinforced by laboratory evidence showing behaviour patterns that are systematically biased away from game-theoretic predictions. This project concerns the development and testing of models more descriptive of actual huma ....Introspection, Learning, and Equilibrium in Games: Theory and Experiment. Game theory is increasingly being used in the social sciences, but the extreme reliance on perfect decision making and perfect foresight has raised doubts about its empirical relevance. This scepticism is reinforced by laboratory evidence showing behaviour patterns that are systematically biased away from game-theoretic predictions. This project concerns the development and testing of models more descriptive of actual human behaviour. One aim is to deliver hybrid models able to reproduce interesting patterns of first-period play (introspection), time-series data in repeated games (learning), and systematic departures from static equilibrium. Another aim is to apply a successful hybrid to improve the design of economic and social institutions.Read moreRead less
Inductive game theory: experiential knowledge, interactions, and limited inferences in social contexts. This research project stresses the importance of limited experiences and limited inferential abilities for explaining differences observed across individuals and groups in society. The project will use inductive game theory to attack problems and conflicts between individuals and groups based on such limitations.
A robust approach to designing mechanisms for budget constrained agents. This project aims to study the design of robust implementable allocation mechanisms for agents who face financial constraints. Financial constraints are important for housing markets, big business auctions and government procurement. Yet their effect on the performance of allocation policies is not well understood. The project intends to develop a general and tractable framework of allocation mechanisms that are implementab ....A robust approach to designing mechanisms for budget constrained agents. This project aims to study the design of robust implementable allocation mechanisms for agents who face financial constraints. Financial constraints are important for housing markets, big business auctions and government procurement. Yet their effect on the performance of allocation policies is not well understood. The project intends to develop a general and tractable framework of allocation mechanisms that are implementable without deficits. The project will adapt this framework to the study of revenue-maximising multi-object auctions with complementarities, and to house allocation problems and related situations where efficiency and priority assignments are important considerations. The project expects to provide policy insights and implications relevant to the Australian housing market.Read moreRead less
Legitimacy and representation: A comprehensive study of electoral systems and strategic voting behaviour. What makes a good electoral system? How can it reflect the preference of the majority while guaranteeing representation to minorities? Should voting be voluntary or mandatory? These are very relevant questions for any democracy, but particularly so for Australia: a country which has always been at the forefront of the electoral debate, that proudly strives to represent with fairness all sect ....Legitimacy and representation: A comprehensive study of electoral systems and strategic voting behaviour. What makes a good electoral system? How can it reflect the preference of the majority while guaranteeing representation to minorities? Should voting be voluntary or mandatory? These are very relevant questions for any democracy, but particularly so for Australia: a country which has always been at the forefront of the electoral debate, that proudly strives to represent with fairness all sectors of its very diverse society and where voting is not only a citizen's right, but also her duty. By approaching these issues in a game theoretic framework, this project proposes to investigate the strategic nature of voting through a comprehensive study of electoral systems. The project will then test our theoretical predictions through a series of laboratory experiments. Read moreRead less
Information and market design: mediation and analogical argumentation. This project aims to increase knowledge of how judicious disclosure of information facilitates economic exchange and social interactions and to shed light on how mediation can be an effective mode of dispute resolution. The project seeks to uncover how analogical arguments can be persuasive and determine social outcomes as well as provide guidance for advocates and decision makers on the best way to persuade and counteract mi ....Information and market design: mediation and analogical argumentation. This project aims to increase knowledge of how judicious disclosure of information facilitates economic exchange and social interactions and to shed light on how mediation can be an effective mode of dispute resolution. The project seeks to uncover how analogical arguments can be persuasive and determine social outcomes as well as provide guidance for advocates and decision makers on the best way to persuade and counteract misleading persuasion practices. Besides producing significant new knowledge, the project promises to inform future innovative economic, social and cultural developments of benefit to the Australian and international community.Read moreRead less
Epistemically feasible choice: implications for sustainable risk management. The aim of this project is to examine procedural decision principles that will yield better choices in circumstances where, because of epistemic limitations, standard decision theory provides an inadequate guide. Individuals and policy-makers must make decisions even though they cannot be fully aware of all of the relevant possibilities or fully understand consequences they have not yet experienced. Examples include ind ....Epistemically feasible choice: implications for sustainable risk management. The aim of this project is to examine procedural decision principles that will yield better choices in circumstances where, because of epistemic limitations, standard decision theory provides an inadequate guide. Individuals and policy-makers must make decisions even though they cannot be fully aware of all of the relevant possibilities or fully understand consequences they have not yet experienced. Examples include individual decisions about marriage and childbearing, public policy decisions about complex environmental problems and decisions on funding scientific research. The expected outcome of the project will be a formal model of decision theory incorporating principles of resilience, sustainability and transformative experience.Read moreRead less