Some topics I researched in recent years:
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Fair Division of Land
Adapting cake-cutting algorithms to fair division of land-estates in two dimensions.
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Fair Division of Items
New algorithms for fair division of indivisible items.
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Double Auctions
Developing auction mechanisms that induce both buyers and sellers to behave truthfully.
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Digital Currencies
Advancing the new world of anarchic coins.
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Social Choice and Voting Procedures
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Repeated Games
Generalizing repeated games and folk theorems to players with different risk attitudes.
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Natural Language Negotiation
Creating computerized agents that can negotiate with humans in English. Don't miss the online demo!
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Hebrew Language Processing
Understanding and Generation of Hebrew Texts
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Biblical Economics
Economics ideas inspired by Biblical commandments - interest-free loan, Sabbatical year and land-Jubilee.
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Bible
Bible - the inspiration.