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Articles 1 - 9 of 9

Full-Text Articles in Social and Behavioral Sciences

Global Analysis Of An Expectations Augmented Evolutionary Dynamics, Angelo Antoci, Antonio Gay, Massimiliano Landi, Pier Luigi Sacco Dec 2008

Global Analysis Of An Expectations Augmented Evolutionary Dynamics, Angelo Antoci, Antonio Gay, Massimiliano Landi, Pier Luigi Sacco

Research Collection School Of Economics

We consider a deterministic evolutionary model where players form expectations about future play. Players are not fully rational and have expectations that change over time in response to current payoffs and feedback from the past. We provide a complete characterization of the qualitative dynamics so induced for a two strategy population game, and relate our findings to standard evolutionary dynamics and equilibrium selection when agents have rational forward looking expectations.


Directed Altruism And Enforced Reciprocity In Social Networks, Stephen Leider, Markus M. Mobius, Tanya S. Rosenblat, Quoc-Anh Do Nov 2008

Directed Altruism And Enforced Reciprocity In Social Networks, Stephen Leider, Markus M. Mobius, Tanya S. Rosenblat, Quoc-Anh Do

Research Collection School Of Economics

We conducted online field experiments in large real-world social networks in order to decompose prosocial giving into three components: (1) baseline altruism toward randomly selected strangers, (2) directed altruism that favors friends over random strangers, and (3) giving motivated by the prospect of future interaction. Directed altruism increases giving to friends by 52% relative to random strangers, whereas future interaction effects increase giving by an additional 24% when giving is socially efficient. This finding suggests that future interaction affects giving through a repeated game mechanism where agents can be rewarded for granting efficiency-enhancing favors. We also find that subjects with …


The More Kids, The Less Mom's Divvy: Impact Of Childbirth On Intrahousehold Resource Allocation, Tomoki Fujii, Ryuichiro Ishikawa Oct 2008

The More Kids, The Less Mom's Divvy: Impact Of Childbirth On Intrahousehold Resource Allocation, Tomoki Fujii, Ryuichiro Ishikawa

Research Collection School Of Economics

We investigate how the impact of childbirth on intrahousehold allocation for married Japanese couples. We developed reduced‐form and structural‐form specifications from a unified theoretical framework. Under a weak set of assumptions, we can focus on private goods to track the changes in intrahousehold resource allocation. Our estimation results show that that allocation of resources within household tend to move to the disadvantage of women after a childbirth. One additional child is associated with a reduction in the wife's private expenditure share. Our estimation results reject the income-pooling hypothesis, and show that women are more risk averse than men.


Utility Functions, Future Consumption Targets And Subsistence Thresholds, Ashok Guha, Brishti Guha Oct 2008

Utility Functions, Future Consumption Targets And Subsistence Thresholds, Ashok Guha, Brishti Guha

Research Collection School Of Economics

If the consumer’s risk aversion behavior varies intertemporally and if the risk aversion coefficient on future consumption becomes very large, the consumer tends to aim at a fixed future consumption target. A by-product is a reinterpretation of subsistence theories of consumption.


Indescribability And Asymmetric Information At The Contracting Stage, Takashi Kunimoto May 2008

Indescribability And Asymmetric Information At The Contracting Stage, Takashi Kunimoto

Research Collection School Of Economics

Maskin and Tirole [Maskin, E., Tirole, J., 1999. Unforeseen contingencies and incomplete contracts. Review of Economic Studies, 66, 83–114] show that indescribability does not matter for contractual incompleteness when there is symmetric information both at the contracting stage and at the trading stage. Following their setup, I show that with asymmetric information at both stages, indescribability can matter.


Target Saving In An Overlapping Generations Model, Brishti Guha, Ashok S. Guha Mar 2008

Target Saving In An Overlapping Generations Model, Brishti Guha, Ashok S. Guha

Research Collection School Of Economics

We examine a model in which the utility function has been engineered so that it is optimal for consumers to aim for a fixed target level of retirement resources. In this case, consumption displays excess sensitivity to current income as well as perfect old age insurance. In an overlapping generations model, this leads naturally to multiple and unstable equilibria. Under static expectations, it also leads to a well-defined dynamics, including possible historical traps, implosions involving ever-diminishing capital stock and ever-increasing interest rates, and the feasibility of optimal one-time interventions.


Advertising And Collusion In Retail Markets, Kyle Bagwell, Gea Myoung Lee Mar 2008

Advertising And Collusion In Retail Markets, Kyle Bagwell, Gea Myoung Lee

Research Collection School Of Economics

We consider non-price advertising by retail firms that are privately informed as to their respective production costs. We first analyze a static model. We construct an advertising equilibrium, in which informed consumers use an advertising search rule whereby they buy from the highest-advertising firm. Consumers are rational in using the advertising search rule, since the lowest-cost firm advertises the most and also selects the lowest price. Even though the advertising equilibrium facilitates productive efficiency, we establish conditions under which firms enjoy higher expected profit when advertising is banned. Consumer welfare falls in this case, however. We next analyze a dynamic …


Mapping The Discipline Of The Olympic Games An Author-Cocitation Analysis, Peter Warning, Rosie Ching, Kristine Toohey Feb 2008

Mapping The Discipline Of The Olympic Games An Author-Cocitation Analysis, Peter Warning, Rosie Ching, Kristine Toohey

Research Collection School Of Economics

The authors conducted an author cocitation analysis on prominent authors writing about the Olympics during the 1990s. Author cocitation is an established bibliometric technique that can be used to measure the relative similarities of topics written about by the cited authors. This enables a visual representation of the “intellectual space” of the discipline, in this case the Olympics, to be created for the period under review. So core and peripheral research areas are identified, along with their major contributors. The representation appears as a two-dimensional cluster-enhanced map. Subject expertise was then applied to the results to place labels on the …


Target Saving In An Overlapping Generations Model, Ashok S. Guha, Brishti Guha Jan 2008

Target Saving In An Overlapping Generations Model, Ashok S. Guha, Brishti Guha

Research Collection School Of Economics

We examine a model in which the utility function has been engineered so that it is optimal for consumers to aim for a fixed target level of retirement resources. In this case consumption displays excess sensitivity to current income as well as perfect old age insurance. In an overlapping generations model, this leads naturally to multiple and unstable equilibria. Under static expectations, it also leads to a well-defined dynamics, including possible historical traps, implosions involving ever-diminishing capital stock and ever-increasing interest rates, and the feasibility of optimal one-time interventions.