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5843 Contributors, 80 Regular Contributors

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  1. Brahma Chellaney

    Brahma Chellaney

    Writing for PS since 2009
    187 Commentaries

    Brahma Chellaney, Professor Emeritus of Strategic Studies at the New Delhi-based Center for Policy Research and Fellow at the Robert Bosch Academy in Berlin, is the author of nine books, including Water: Asia’s New Battleground (Georgetown University Press, 2011), for which he won the 2012 Asia Society Bernard Schwartz Book Award.

  2. Jorge G. Castañeda

    Jorge G. Castañeda

    Writing for PS since 2004
    91 Commentaries

    Jorge G. Castañeda, a former foreign minister of Mexico, is a professor at New York University and the author of America Through Foreign Eyes (Oxford University Press, 2020).

  3. Diane Coyle

    Diane Coyle

    Writing for PS since 2017
    45 Commentaries

    Diane Coyle, Professor of Public Policy at the University of Cambridge, is the author of the forthcoming The Measure of Progress: Counting What Really Matters (Princeton University Press, April 1, 2025).

  4. Edoardo Campanella

    Edoardo Campanella

    Writing for PS since 2010
    40 Commentaries

    Edoardo Campanella, Senior Fellow at the Mossavar-Rahmani Center for Business and Government at the Harvard Kennedy School, is co-author (with Marta Dassù) of Anglo Nostalgia: The Politics of Emotion in a Fractured West (Oxford University Press, 2019).

  5. Otaviano Canuto

    Otaviano Canuto

    Writing for PS since 2011
    22 Commentaries

    Otaviano Canuto, a former vice president and executive director of the World Bank, executive director of the International Monetary Fund, vice president of the Inter-American Development Bank, and deputy minister of finance of Brazil, is a non-resident senior fellow at the Brookings Institution and a senior fellow at the Policy Center for the New South.

  6. Helen Clark

    Helen Clark

    Writing for PS since 2011
    18 Commentaries

    Helen Clark is a former prime minister of New Zealand and former administrator of the United Nations Development Programme.

  7. Mauricio Cárdenas

    Mauricio Cárdenas

    Writing for PS since 2010
    16 Commentaries

    Mauricio Cárdenas, a former finance minister of Colombia, is Visiting Senior Research Scholar at Columbia University’s Center on Global Energy Policy.

  8. Benjamin J. Cohen

    Benjamin J. Cohen

    Writing for PS since 2015
    15 Commentaries

    Benjamin J. Cohen, Distinguished Professor Emeritus of International Political Economy at the University of California, Santa Barbara, is the author of Currency Statecraft: Monetary Rivalry and Geopolitical Ambition.

  9. Andrei Cornea

    Andrei Cornea

    Writing for PS since 1997
    13 Commentaries

    Andrei Cornea is Professor of Philosophy at the University of Bucharest and a leading Romanian essayist.

  10. John H. Cochrane

    John H. Cochrane

    Writing for PS since 2021
    11 Commentaries

    John H. Cochrane is a senior fellow of the Hoover Institution, an adjunct scholar at the CATO Institute, and the author of The Fiscal Theory of the Price Level (Princeton University Press 2023). He maintains the Grumpy Economist blog.

  11. Brahima Coulibaly

    Brahima Coulibaly

    Writing for PS since 2017
    9 Commentaries

    Brahima Coulibaly is Vice President and Director of the Global Economy and Development Program at the Brookings Institution.

  12. Caroline Conroy

    Caroline Conroy

    Writing for PS since 2017
    7 Commentaries

    Caroline Conroy is a senior research analyst at the Brookings Institution.

  13. Daniel Cohen

    Daniel Cohen

    Writing for PS since 2003
    7 Commentaries

    Daniel Cohen, Co-Founder and Chair of the Finance for Development Lab, is President of the Paris School of Economics and the author, most recently, of The Inglorious Years: The Collapse of the Industrial Order and the Rise of Digital Society (Princeton University Press, 2021).

  14. Mark Cliffe

    Mark Cliffe

    Writing for PS since 2018
    7 Commentaries

    Mark Cliffe is Visiting Professor at the London Institute of Banking and Finance.

  15. Arnold Cassola

    Arnold Cassola

    Writing for PS since 2009
    7 Commentaries

    Arnold Cassola is former Secretary-General of the European Green Party and a former member of the Italian Parliament.

  1. weglarczyk1_Justin TallisGettyImages_europe_security_summit Justin Tallis/Getty Images

    Europe, United, Will Never Be Defeated!

    Bartosz Węglarczyk identifies the main obstacle to the development of an effective defense strategy in the absence of US support.
  2. strain37_Spencer PlattGettyImages_trump_stock_market Spencer Platt/Getty Images

    Why Is Trump Undermining the US Economy?

    Michael R. Strain

    Although Donald Trump got off to a good start, with equity prices hitting all-time highs in anticipation of pro-growth policies, investor confidence has vanished, tanking the stock market. With the president deliberately undermining the foundations of US prosperity, one must ask why he is doing it, and what could stop him.

    offers three explanations for a set of policies that have sent investor confidence into a tailspin.
  3. berglof40_Geoff RobinsGettyImages_trade_tariffs_cars Geoff Robins/Getty Images

    How to Lose a Decade

    Erik Berglöf & Nahom Ghebrihiwet warns that a trade war will harm economic growth and decarbonization, with developing countries hit hardest.
  4. tharoor200_Jim WatsonGettyImages_trump_modi_trade Jim Watson/Getty Images

    Will Trump’s Tariffs Derail India’s Economy?

    Shashi Tharoor

    The US administration’s plan to impose “reciprocal” import tariffs could severely curtail key Indian exports, including chemicals, metals, auto parts, and pharmaceuticals, leading to job losses and undermining fiscal stability. India has little choice but to lower its own tariffs while negotiating improved access to the US market.

    urges policymakers to brace for the impact – known and unknown – of the US administration’s trade policies.
  5. hamada69_The Washington PostGettyImages_trump_speech The Washington Post/Getty Images

    Countering Trump’s Politics of Fear

    Koichi Hamada calls for a new set of policies that responds to, rather than dismisses, US voters’ legitimate fears.
  6. galen5_Andrew HarnikGetty Images_trumpcongress Andrew Harnik/Getty Images

    Where Are the Democrats?

    Reed Galen lambasts the party for sitting by and watching America implode, in the misguided hope of winning the midterms.
  7. moyo34_Spencer PlattGetty Images_NYSE Spencer Platt/Getty Images

    Signs of a US Recession

    Dambisa Moyo catalogues several indicators suggesting that the world's largest economy is headed for a slump.
  8. goldberg32_Spencer PlattGetty Images_USshipping Spencer Platt/Getty Images

    Trump’s Trade War

    Less than two months into his second presidency, Donald Trump has imposed sweeping tariffs on America’s three largest trading partners, with much more to come. This strategy not only lacks any credible theoretical foundations; it is putting the US on a path toward irrevocable economic and geopolitical decline.

  9. ruf1_MANAURE QUINTEROAFP via Getty Images_data center Manaure Quintero/AFP via Getty Images

    Why Frugal AI Alone Won’t Fix AI’s Energy Problem

    Boris Ruf explains why shifting the responsibility for reducing AI’s carbon footprint to end users is counterproductive.

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