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  1. Bjørn Lomborg

    Bjørn Lomborg

    Writing for PS since 2005
    181 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
    94 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. 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

  4. Philippe Legrain

    Philippe Legrain

    Writing for PS since 2007
    36 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).  

  5. Zaki Laïdi

    Zaki Laïdi

    Writing for PS since 2012
    32 Commentaries

    Zaki Laïdi, a professor at Sciences Po, is Senior Adviser to the High Representative of the European Union for Foreign Affairs and Security Policy.

  6. Justin Yifu Lin

    Justin Yifu Lin

    Writing for PS since 2009
    28 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
    14 Commentaries

    Keun Lee, a former vice chair of the National Economic Advisory Council for the President of South Korea and a former president of the International Schumpeter Society, is Professor of Economics at Seoul National University, winner of the 2014 Schumpeter Prize, and the author of China’s Technological Leapfrogging and Economic Catch-up: A Schumpeterian Perspective (Oxford University Press, 2022).

  8. 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.

  9. 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.

  10. 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.

  11. Noëlle Lenoir

    Noëlle Lenoir

    Writing for PS since 2002
    12 Commentaries

    Noëlle Lenoir is a former member of France’s Conseil Constitutionnel, the Conseil d’Etat, and a former minister for Europe.

  12. Nicholas Reed Langen

    Nicholas Reed Langen

    Writing for PS since 2019
    12 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.

  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. 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.

  15. Pascal Lamy

    Pascal Lamy

    Writing for PS since 2009
    9 Commentaries

    Pascal Lamy, President of the Paris Peace Forum, is a former director-general of the World Trade Organization and EU trade commissioner.

  1. kimooon31_RezaGetty Images_oil Reza/Getty Images

    Petrostates Must Take the Lead on Climate Finance

    Ban Ki-moon, et al. urges oil-exporting countries to kickstart a program of green investment in the Global South at COP28.
  2. fratzscher18_ODD ANDERSENAFP via Getty Images_germany debt brake ODD ANDERSEN/AFP via Getty Images

    Germany’s Debt Brake Is Breaking Its Economy

    Marcel Fratzscher warns that a flawed constitutional rule is undermining the country’s ability to pursue essential reforms.
  3. schaaf1_JEWEL SAMADAFP via Getty Images_cop28 JEWEL SAMAD/AFP via Getty Images

    Why COP28 Has Already Failed

    Marta Schaaf & Kristine Beckerle say that the UAE’s repression of dissidents and rights activists serves defenders of the climate status quo.
  4. pistor30_Justin SullivanGetty Images_sam altman Justin Sullivan/Getty Images

    In AI, Capital Wins Again

    Katharina Pistor

    The OpenAI saga – in which founder and CEO Sam Altman was suddenly fired and then reinstated, together with a new governing board – may have been enthralling, but it was neither novel nor surprising. Historically, capital usually wins out when there are competing visions for the future of an innovative product or business model.

    shows why OpenAI’s efforts to preserve its founding non-profit mission never stood any chance.
  5. rajan80_BRENDAN BANNONAFP via Getty Images_climaterefugees Brendan Bannon/AFP via Getty Images

    Justice for Climate Migrants

    Sameh Shoukry & Amy E. Pope

    Climate change is expected to displace tens of millions of people by mid-century, especially in the Global South. By enhancing international cooperation, we could improve the lives and livelihoods of the displaced and develop sustainable solutions that enable affected communities to rebuild.

    urge leaders to take a holistic approach to addressing the sharp increase in weather-related displacement.
  6. Haldar_Say-More_Busakorn-via-GettyRF

    Antara Haldar on behavioral economics, development models, global governance, and more

    Antara Haldar advocates a radical rethink of development, explains what went right at the recent AI Safety Summit, highlights the economics discipline’s shortcomings, and more.
  7. The symbol of the Euro Hannelore Foerster/Getty Images

    The New Normal for Central Banks

    Lucrezia Reichlin asks why the US Federal Reserve and the European Central Bank keep providing liquidity directly to banks.
  8. benami208_FADEL SENNAAFP via Getty Images_israel palestine FADEL SENNA/AFP via Getty Images

    The False Choice Between Palestinian and Jewish Liberation

    Shlomo Ben-Ami rejects the facile moralism of those who view the ongoing war through the narrow lens of decolonization.
  9. buruma208_Patrick van KatwijkBSR AgencyGetty Images_wilders1 Patrick van KatwijkBSR AgencyGetty Images

    The Rage of the Outsiders

    Ian Buruma shows what Geert Wilders has in common with other ultra-nationalist politicians, past and present.

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