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I am a computational social scientist at Microsoft Research.  My early work analyzed the relationship between network topology and human behavior.  Since then I became one of the leaders in designing, building, and conducting "virtual lab" experiments using Amazon's Mechanical Turk.  This research stream turned into a study of the on-demand workers who power many modern apps, websites, and AI systems which culminated in Ghost Work (coauthored with Mary L. Gray). During and after the COVID-19 pandemic I explored the future of work. Most recently I've been analyzing the effects of AI on society.

Here is a timeline of the research questions I've worked on.

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