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Yen-Sheng Chiang

Bio: Yen-Sheng Chiang is an academic researcher from Academia Sinica. The author has contributed to research in topics: Inequality & Ultimatum game. The author has an hindex of 8, co-authored 26 publications receiving 238 citations. Previous affiliations of Yen-Sheng Chiang include University of Washington & University of California, Irvine.

Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors provided an empirical assessment of the theory of biological markets and competitive altruism based on a laboratory experiment with human subjects using the Ultimatum game and found that more generous proposers and more tolerant responders are preferred as partners.

55 citations

Proceedings ArticleDOI
04 Aug 2014
TL;DR: This paper proposes a fairness-aware recommendation system based on one-class collaborative-filtering techniques for charity and micro-loan platform such as Kiva.org that can largely improve the loan distribution fairness while retaining the accuracy of recommendations.
Abstract: Up to date, more than 15 billion US dollars have been invested in microfinance that benefited more than 160 million people in developing countries. The Kiva organization is one of the successful examples that use a decentralized matching process to match lenders and borrowers. Interested lenders from around the world can look for cases among thousands of applicants they found promising to lend the money to. But how can loan borrowers and lenders be successfully matched up in a microfinance platform like Kiva? We argue that a sophisticate recommender not only pairs up loan lenders and borrowers in accordance to their preferences, but should also help to diversify the distribution of donations to reduce the inequality of loans is highly demanded, as altruism, like any resource, can be congestible.In this paper, we propose a fairness-aware recommendation system based on one-class collaborative-filtering techniques for charity and micro-loan platform such as Kiva.org. Our experiments on real dataset indicates that the proposed method can largely improve the loan distribution fairness while retaining the accuracy of recommendations.

44 citations

Journal ArticleDOI
TL;DR: Computer experiments show that participation levels increase when network structure departs from pure homophily, such that actors have new neighbors with discrepant thresholds, suggesting that bandwagon dynamics are maximized when there is a balance of heterogeneity and homogeneity in social networks.
Abstract: This paper investigates bandwagon dynamics in social networks, using an extension of Granovetter's (1978) threshold model. The focus is on the pattern of social ties connecting actors with different participation thresholds. A benchmark model, in which actors' thresholds are similar to their neighbors' thresholds, is built from the principle of homophily. Computational experiments show that participation levels increase when network structure departs from pure homophily, such that actors have new neighbors with discrepant thresholds. Further increasing the heterogeneity of network neighbors causes the bandwagon effects to wane, however, suggesting that bandwagon dynamics are maximized when there is a balance of heterogeneity and homogeneity in social networks. This principle is consistent with insights from several empirical studies and consistent with the conclusions of other formal models.

43 citations

Journal ArticleDOI
TL;DR: For example, this paper found that subjects do not behave in a self-interest-maximizing manner as would be predicted by game theory, and an evolutionary approach attempts to exp...
Abstract: Recent experimental findings on behavioral games show that subjects do not behave in a self-interest-maximizing manner as would be predicted by game theory. An evolutionary approach attempts to exp...

27 citations

Journal ArticleDOI
TL;DR: Novel brain evidence is provided in support of Heider’s original account for the psychological and biological foundations of structural balance theory in the formation of social networks by showing that individuals’ psychological states are different when they are situated in unbalanced rather than balanced triads.

19 citations


Cited by
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Proceedings ArticleDOI
22 Jan 2006
TL;DR: Some of the major results in random graphs and some of the more challenging open problems are reviewed, including those related to the WWW.
Abstract: We will review some of the major results in random graphs and some of the more challenging open problems. We will cover algorithmic and structural questions. We will touch on newer models, including those related to the WWW.

7,116 citations

Book
01 Jan 1987
TL;DR: In this paper, the problem of collective action in the provision of public goods has been studied, and the prisoners' dilemma, chicken and other games have been used in public goods provision.
Abstract: Preface 1. Introduction: the problem of collective action 2. The prisoners' dilemma, chicken and other games in the provision of public goods 3. The two-person prisoners' dilemma supergame 4. The N-person prisoners' dilemma supergame 5. Altruism and superiority 6. The state 7. Epilogue: cooperation, the state and anarchy Annex Notes Bibliography Index.

797 citations

Posted Content
01 Jan 2014
TL;DR: This Review presents basic facts regarding the long-run evolution of income and wealth inequality in Europe and the United States and discusses possible interpretations and lessons for the future.
Abstract: This Review presents basic facts regarding the long-run evolution of income and wealth inequality in Europe and the United States. Income and wealth inequality was very high a century ago, particularly in Europe, but dropped dramatically in the first half of the 20th century. Income inequality has surged back in the United States since the 1970s so that the United States is much more unequal than Europe today. We discuss possible interpretations and lessons for the future.

580 citations