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  1. Bjørn Lomborg

    Bjørn Lomborg

    Writing for PS since 2005
    176 Commentaries

    Bjørn Lomborg, a visiting professor at the Copenhagen Business School, is Director of the Copenhagen Consensus Center. His books include The Skeptical Environmentalist, Cool It, How to Spend $75 Billion to Make the World a Better Place, The Nobel Laureates' Guide to the Smartest Targets for the World, and, most recently, Prioritizing Development. In 2004, he was named one of Time magazine's 100 most influential people for his research on the smartest ways to help the world. 

  2. Mark Leonard

    Mark Leonard

    Writing for PS since 2004
    107 Commentaries

    Mark Leonard, Director of the European Council on Foreign Relations, is the author of The Age of Unpeace: How Connectivity Causes Conflict (Bantam Press, 2021).

  3. Philippe Legrain

    Philippe Legrain

    Writing for PS since 2007
    40 Commentaries

    Philippe Legrain, a former economic adviser to the president of the European Commission, is Visiting Senior Fellow at the London School of Economics’ European Institute and the author of Them and Us: How Immigrants and Locals Can Thrive Together (Oneworld, 2020).  

  4. Bernard-Henri Lévy

    Bernard-Henri Lévy

    Writing for PS since 2015
    36 Commentaries

    Bernard-Henri Lévy is one of the founders of the “Nouveaux Philosophes” (New Philosophers) movement. His books include Left in Dark Times: A Stand Against the New Barbarism, American Vertigo: Traveling America in the Footsteps of Tocqueville, and most recently, The Empire and the Five Kings

  5. Zaki Laïdi

    Zaki Laïdi

    Writing for PS since 2012
    36 Commentaries

    Zaki Laïdi, a professor at Sciences Po, is a former special adviser to the High Representative of the European Union for Foreign Policy and Security.

  6. Justin Yifu Lin

    Justin Yifu Lin

    Writing for PS since 2009
    29 Commentaries

    Justin Yifu Lin, a former World Bank chief economist, is Dean of the Institute of New Structural Economics and Dean of the Institute of South-South Cooperation and Development at Peking University. 

  7. Keun Lee

    Keun Lee

    Writing for PS since 2021
    22 Commentaries

    Keun Lee, a former vice chair of the National Economic Advisory Council for the President of South Korea, is Distinguished Professor of Economics at Seoul National University, a fellow at CIFAR, an editor at Research Policy, and the author, most recently, of Innovation-Development Detours for Latecomers: Managing Global-Local Interfaces in the De-Globalization Era (Cambridge University Press, 2024).

  8. Nicholas Reed Langen

    Nicholas Reed Langen

    Writing for PS since 2019
    16 Commentaries

    Nicholas Reed Langen, a 2021 re:constitution fellow, edits the LSE Public Policy Review and writes on the British constitution for The Justice Gap.

  9. Christine Lagarde

    Christine Lagarde

    Writing for PS since 2009
    14 Commentaries

    Christine Lagarde, former Managing Director of the International Monetary Fund, is President of the European Central Bank. She previously served as France’s finance minister from 2007-2011.

  10. Susan Lund

    Susan Lund

    Writing for PS since 2013
    13 Commentaries

    Susan Lund is a partner at McKinsey & Company and a leader at the McKinsey Global Institute.

  11. Carlos Lopes

    Carlos Lopes

    Writing for PS since 2017
    13 Commentaries

    Carlos Lopes, a professor at the Nelson Mandela School of Public Governance at the University of Cape Town, is a member of the World Resources Institute’s Board and Chair of the African Climate Foundation Board.

  12. Noëlle Lenoir

    Noëlle Lenoir

    Writing for PS since 2002
    13 Commentaries

    Noëlle Lenoir, a former French minister for Europe, is an honorary justice of the French Constitutional Court.

  13. F. Stephen Larrabee

    F. Stephen Larrabee

    Writing for PS since 2007
    11 Commentaries

    F. Stephen Larrabee holds the Distinguished Chair in European Security at the Rand Corporation, and served on the National Security Council staff in the Carter Administration.

  14. James Livingston

    James Livingston

    Writing for PS since 2022
    10 Commentaries

    James Livingston, Professor Emeritus of History at Rutgers University, is the author of six books, including No More Work: Why Full Employment Is a Bad Idea (The University of North Carolina Press, 2016), and the forthcoming The Intellectual Earthquake: How Pragmatism Changed the World, 1898-2008 (University of Chicago Press).

  15. Jean-Pierre Lehmann

    Jean-Pierre Lehmann

    Writing for PS since 2001
    10 Commentaries

    Jean-Pierre Lehmann is Emeritus Professor of International Political Economy at IMD, Switzerland, Founder of The Evian Group, and Visiting Professor at Hong Kong University and NIIT University in Neemrana Rajasthan.

  1. gbrowne1_Thomas SamsonGettyImages_fossil_fuel_non_proliferation_treaty Thomas Samson/Getty Images

    A Defining Moment for Energy Security and Economic Prosperity

    Gaston Browne points out that the energy transition is vital not only to protect the planet, but also to enhance resilience.
  2. norrlof10_Picture AllianceGettyImages_lng_terminal_baltic_sea Picture Alliance/Getty Images

    How Much “Weaponization” Can the Global Economy Take?

    Carla Norrlöf

    While leveraging global economic choke points to advance one’s own interests is certainly preferable to deploying tanks or launching missiles, such leveraging of interdependence is not without costs. Eventually, the dependencies that it exploits will collapse, leaving everyone worse off.

    worries that major powers’ understandable reliance on economic coercion will go too far.
  3. op_detter1_utah778Getty Images_balancesheet utah778/Getty Images

    Fixing Public Finances Without a Chainsaw

    Dag Detter

    Governments are the most important wealth managers in their respective jurisdictions, but they rarely behave like it. To boost revenue and ensure economic stability, policymakers must modernize their accounting practices and establish public wealth funds.

    urges cash-strapped countries to adopt a commercial approach to management of government-owned assets.
  4. delong268_Drew AngererGetty Images_trump Drew Angerer/Getty Images

    Rescuing America’s Economy from Trump

    J. Bradford DeLong thinks the US president needs a regent, similar to the role Howard Baker played under Ronald Reagan.
  5. bildt133_Tobias SchwarzGettyImages_rutte_vance Tobias Schwarz/Getty Images

    The Transatlantic World Will Never Be the Same

    Carl Bildt urges Europeans to prepare for the worst from Donald Trump’s America, which is behaving like an adversary.
  6. goldberg34_Mario TamaGetty Images_USshippingcontainers Mario Tama/Getty Images

    Making Sense of the Tariff Chaos

    Pinelopi Koujianou Goldberg considers whether the zero-sum logic behind the new US policy will spread.
  7. frankel170_Anna MoneymakerGettyImages_trump_bessent Anna Moneymaker/Getty Images

    Is Trump Engineering the Decline and Fall of the Dollar?

    Jeffrey Frankel exposes fundamental flaws in the US administration’s vision for weakening the greenback.
  8. simons2_Fadel SennaGettyImages_uae_foreign_aid Fadel Senna/Getty Images

    Trump’s War on Foreign Aid and the Rise of Transactional Diplomacy

    Bright Simons highlights the global implications of the administration’s decision to shut down USAID.
  9. iyahen1_RANDY BROOKSAFP via Getty Images_barbadoshurricane Randy Brooks/AFP via Getty Images

    Insuring Coastal and Ocean Resilience

    Ekhosuehi Iyahen explains how the insurance industry can mobilize private capital toward nature-based solutions.

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