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Philip E. Tetlock

Philip E. Tetlock

Writing for PS since 2006
2 commentaries
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Philip E. Tetlock, University Professor in Democracy and Citizenship and Professor of Management at the University of Pennsylvania, is the co-author of Superforecasting: The Art and Science of Prediction.

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  3. mallochbrown10_ANDREW MILLIGANAFPGetty Images_boris johnson cow Andrew Milligan/AFP/Getty Images

    Brexit House of Cards

    Mark Malloch-Brown

    Following British Prime Minister Boris Johnson's suspension of Parliament, and an appeals court ruling declaring that act unlawful, the United Kingdom finds itself in a state of political frenzy. With rational decision-making having become all but impossible, any new political agreement that emerges is likely to be both temporary and deeply flawed.

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    Could Ultra-Low Interest Rates Be Contractionary?

    Ernest Liu, et al.

    Although low interest rates have traditionally been viewed as positive for economic growth because they encourage businesses to invest in enhancing productivity, this may not be the case. Instead, Ernest Liu, Amir Sufi, and Atif Mian contend, extremely low rates may lead to slower growth by increasing market concentration and thus weakening firms' incentive to boost productivity.

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