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  1. Chang Ka Mun

    Chang Ka Mun

    Writing for PS since 2016
    1 Commentary

    Chang Ka Mun is managing director of the Fung Business Intelligence Centre of the Li & Fung group of companies.

  2. Sigrid Kaag

    Sigrid Kaag

    1 Commentary

    Sigrid Kaag is Minister for Foreign Trade and Development Cooperation for the Netherlands.

  3. Malado Kaba

    Malado Kaba

    Writing for PS since 2022
    2 Commentaries

    Malado Kaba, Managing Director of Falémé Conseil and a member of the inaugural cohort of the Amujae Initiative, served as the first female minister of economy and finance of the Republic of Guinea.

  4. Omar Kabbaj

    Writing for PS since 2004
    1 Commentary

    Omar Kabbaj is President of the African Development Bank, Tunis.

  5. Donald P. Kaberuka

    Donald P. Kaberuka

    Writing for PS since 2011
    9 Commentaries

    Donald P. Kaberuka, a former president of the African Development Bank, is Special Envoy of the African Union’s Peace Fund.

  6. Paul Kagame

    Paul Kagame

    Writing for PS since 2012
    4 Commentaries

    Paul Kagame is President of Rwanda.

  7. Guy Kahane

    Guy Kahane

    Writing for PS since 2011
    1 Commentary

    Guy Kahane is Deputy Director of the Uehiro Centre for Practical Ethics, Faculty of Philosophy, University of Oxford.

  8. David Kaiser

    Writing for PS since 2012
    1 Commentary

    David Kaiser is Professor of the History of Science at the Massachusetts Institute of Technology. His latest book is How the Hippies Saved Physics: Science, Counterculture, and the Quantum Revival.

  9. Karl Kaiser

    Karl Kaiser

    Writing for PS since 2013
    1 Commentary

    Karl Kaiser is a former director of the German Council on Foreign Relations, an adjunct professor at Harvard’s John F. Kennedy School, and Director of the Program on Transatlantic Relations at the Weatherhead Center for International Affairs.

  10. Wu’er Kaixi

    Wu’er Kaixi

    Writing for PS since 2019
    1 Commentary

    Wu’er Kaixi, a member of the Reporters Without Borders (RSF) Emeritus Board, was a leader of the Tiananmen Square protest in 1989.

  11. Sophia Kalantzakos

    Sophia Kalantzakos

    Writing for PS since 2020
    1 Commentary

    Sophia Kalantzakos is Professor of Environmental Studies and Public Policy at New York University/NYU Abu Dhabi, a fellow at the Research Institute for the History of Science and Technology at Caltech and The Huntington, and a former Fung Global Fellow at Princeton University. She is the author of China and the Geopolitics of Rare Earths

  12. Rashad Kaldany

    Writing for PS since 2012
    1 Commentary

  13. Mary Kaldor

    Mary Kaldor

    Writing for PS since 2012
    1 Commentary

    Mary Kaldor is Professor of Global Governance at the London School of Economics.

  14. Şebnem   Kalemli-Özcan

    Şebnem Kalemli-Özcan

    Writing for PS since 2013
    5 Commentaries

    Şebnem Kalemli-Özcan, a former senior policy adviser at the International Monetary Fund, is Professor of Economics at the University of Maryland, College Park. 

  1. op_campanella10_WANG ZHAOAFP via Getty Images_USChina Wang Zhao/AFP via Getty Images
    Subscriber Exclusive

    Understanding the US-China Rivalry

    Edoardo Campanella

    US Speaker of the House Nancy Pelosi’s visit to Taiwan may have widened the divide between the United States and China even further. But the Sino-American rivalry has been building for years, if not decades, alongside each power's evolving role in the international system.

    reviews five recent books on the recent history, and worrisome future, of the Sino-American relationship.
  2. three flags Hung Chin Liu/Getty Images
    Subscriber Exclusive

    Will US-China Tensions Boil Over?

    A toxic mix of mutual distrust and rising nationalism – with Taiwan the immediate flash point – has brought Sino-American relations to their lowest point in decades. While neither China nor the United States appears to want a military conflict, we asked PS commentators whether the two powers might nonetheless stumble into one.

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