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5723 Contributors, 81 Regular Contributors

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  1. Roberto Zagha

    1 Commentary

    Roberto Zagha is a former World Bank Country Director for India and Secretary of the Commission on Growth and Development.

  2. Carl Zimmer

    Writing for PS since 2001
    1 Commentary

    The author of Parasite Rex and writes regularly on evolution in the journal "Natural History."

  3. Richard Zeckhauser

    Richard Zeckhauser

    Writing for PS since 2001
    1 Commentary

    Professor of Political Economy at the John F. Kennedy School of Government.

  4. Anton Zeilinger

    Anton Zeilinger

    Writing for PS since 2001
    1 Commentary

    Professor of Experimental Physics at the University of Vienna, Austria, where he and his group are doing research in photonic entanglement and molecular optics to test the most fundamental issues in quantum physics.

  5. Jose Zalaquett

    Jose Zalaquett

    Writing for PS since 2002
    1 Commentary

    Human rights activist and Professor of International Law at the University of Chile.

  6. John Ziman

    Writing for PS since 2002
    1 Commentary

    Fellow of the Royal Society and Emeritus Professor of Physics at the University of Bristol.

  7. Ernesto Zedillo

    Ernesto Zedillo

    Writing for PS since 2003
    3 Commentaries

    Ernesto Zedillo is a former president of Mexico (1994-2000) and a member of the Global Commission on Drug Policy.

  8. G. P. Zachary

    G. P. Zachary

    Writing for PS since 2004
    11 Commentaries

    G. Pascal Zachary is the author of Married to Africa: a Love Story.

  9. Salomé Zourabichvili

    Salomé Zourabichvili

    Writing for PS since 2006
    1 Commentary

    Salomé Zourabichvili, President of Georgia, is a former Minister of Foreign Affairs of Georgia.

  10. Jonathan Zittrain

    Writing for PS since 2006
    1 Commentary

    Jonathan Zittrain is a Professor at Harvard Law School and co-founder of the Berkman Center for Internet and Society there. He is also a Professor at Oxford University's Oxford Internet Institute

  11. Paul J. Zak

    Paul J. Zak

    Writing for PS since 2006
    1 Commentary

    Paul J. Zak, a fellow at the Gruter Institute and director of Claremont Graduate University's Center for Neuroeconomics Studies, is editor of Moral Markets: The Critical Role of Values in the Economy.

  12. Phillip Zimbardo

    Phillip Zimbardo

    Writing for PS since 2008
    1 Commentary

    Philip Zimbardo is Emeritus Professor of Psychology at Stanford University. See www.lucifereffect.com

  13. Zeina Zaatari

    Writing for PS since 2008
    1 Commentary

    Zeina Zaatari is senior program officer for the Middle East and North Africa for the Global Fund for Women.

  14. Femke V. Zeijl

    Femke V. Zeijl

    Writing for PS since 2008
    1 Commentary

    Femke van Zeijl is a Dutch writer and journalist primarily working in Sub-Saharan Africa. Her most recent book Een nacht in een vijzel looks at women's lives in Mozambique, Sudan, Rwanda, Burundi, Uganda and the Democratic Republic of the Congo.

  15. Luigi Zingales

    Luigi Zingales

    Writing for PS since 2008
    29 Commentaries

    Luigi Zingales, Professor of Finance at the University of Chicago, is Co-Host of the podcast Capitalisn’t.

  1. buruma219_AngelaWeissGettyImages_hinchcliffe_trump_rally2 Angela Weiss/Getty Images

    The Laugh Is on the Democrats

    Ian Buruma sees Donald Trump’s victory as a rebellion of the culturally dispossessed who relish his insult comedy.
  2. crider2_EuropaPressNewsGettyImages_teresa_ribera Europa Press News/Getty Images

    The EU Must Break Up Big Tech

    Cori Crider explains how reining in digital giants’ outsize power would boost competition and help combat climate change.
  3. macron9_Sanja DjordjevicGetty Images_solidaritysustainabilityworld Sanja Djordjevic/Getty Images

    The Case for Solidarity Levies

    A promising way to mobilize more climate finance for developing countries is to expand the use of “solidarity levies”: global levies on carbon dioxide emissions and other economic activities that channel proceeds to developing countries. The benefits of scaling up such measures would be far-reaching.

  4. leonard105_JONATHAN ERNSTPOOLAFP via Getty Images_trump europe JONATHAN ERNSTPOOLAFP via Getty Images

    Living in Trump’s World

    Mark Leonard explains what European leaders must do to prepare for the radical changes promised by the US president-elect.
  5. op_whatley22_Chip SomodevillaGetty Images_trump Chip Somodevilla/Getty Images

    PS Roundtable: The Return of Trump

    PS Commentators

    Although Americans – and the world – have been spared the kind of agonizing uncertainty that followed the 2020 election, a different kind of uncertainty has set in. While few doubt that Donald Trump's comeback will have far-reaching implications, most observers are only beginning to come to grips with what those could be.

    consider what the outcome of the 2024 US presidential election will mean for America and the world.
  6. deschutter8_melitasGetty Images_mentalhealth melitas/Getty Images

    Inequality Is Destroying Mental Health

    Olivier De Schutter & Kate Pickett propose raising taxes on corporations and the wealthy to improve well-being in unequal countries.
  7. krueger36_Feng LiGetty Images_china trade Feng Li/Getty Images

    How Europe Could Benefit from Trump’s Second Term

    Daniel Gros urges policymakers to focus on defusing trade tensions with the bloc’s largest export partner.
  8. mazzucato76_PEDRO PARDOAFP via Getty Images_rainforestindigenous Pedro Pardo/AFP via Getty Images

    Global Freshwater Supplies in the Balance

    Mariana Mazzucato & Johan Rockström warn that governments are doing too little too slowly about the breakdown of critical natural systems.
  9. stanley5_Mindy SchauerMediaNews GroupOrange County Register via Getty Images_trump Mindy Schauer/MediaNews Group/Orange County Register via Getty Images
    Free to read

    The End of US Democracy Was All Too Predictable

    Jason Stanley observes that philosophers since Plato have understood how tyrants come to power in free elections.

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