Dawei Shen Thesis Defense

April 12, 2012


MIT Media Lab, E14-633


Information markets benefit the communities they serve by facilitating electronic distributed exchange of information. Further benefits include enhancing knowledge sharing, innovation, and productivity. This research explores innovative market mechanisms to build long-term sustainable incentives that many existing platforms fail to provide, while encouraging pro-social behavior. A key advantage of this research is direct application of information economic and macroeconomic theory to design of social software.
The research contribution is the design of a complete framework for information markets, which consists of several distinct components: 1) a market engine for exchanging information products that are non-rivalrous and non-excludable; 2) a serialized currency system that enables monetary acceleration; 3) “monetary policies” that ensure a healthy growth of currency supply; 4) “fiscal policies” that reward information reuse and good behavior such as tagging, voting, tipping, and fraud reporting.
We built a web-based software platform called Barter, and have deployed it at several universities. Analysis of user data helps test information market effectiveness and illustrates effects of various market interventions. We present our key findings learned in the process of system deployment, such as the impacts of social connections on market interactions and fraud, effects of bounty on information quality, market fraud and intervention of fraud prevention mechanism.

Host/Chair: Andrew Lippman


Alex (Sandy) Pentland Marshall Van Alstyne

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