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— CH. 1 · INTRODUCTION —

Olivier Blanchard

~7 min read · Ch. 1 of 7
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  • Olivier Blanchard arrived at the International Monetary Fund as its chief economist in September 2008. He started the job two weeks before Lehman Brothers collapsed, and with it the global financial system. Few economists have ever stepped into the eye of a storm so precisely.

    Blanchard was born on the 27th of December 1948 in Amiens, France. His father was a neurologist and his mother a psychiatrist. He grew up inside a household that thought in clinical, systematic terms about how people work. That upbringing left a mark.

    By 2008 he was one of the most cited economists in the world, according to IDEAS/RePEc. He held a chair at MIT named for his own doctoral supervisor. He had co-authored more than 150 articles and edited or written 30 books. And now, at the moment the global economy needed its most experienced diagnosticians, he was being handed the stethoscope at the world's most powerful economic institution.

    This documentary follows how a teenager galvanized by street protests in 1968 became the person governments called when the financial order began to break down.

  • Student protests swept France in 1968, and Blanchard was among those watching. He has said that those protests revealed to him how much economics mattered for society's welfare. They also revealed something else: he was drawn to the quantitative methods that could bring rigor to those large, urgent questions.

    He earned a DES in economics at the University of Nanterre in 1972. Nanterre was, pointedly, the same university where the student movement of 1968 had originated. He then left France for the United States in 1973.

    At MIT he found two supervisors who would shape his thinking for decades. Stanley Fischer and Robert Solow guided him through his doctorate, which he completed in 1977. Solow had already won the Nobel Prize in economics; Fischer would go on to serve as governor of the Bank of Israel and vice chair of the Federal Reserve. The intellectual pedigree of that PhD committee would later echo through Blanchard's own students.

  • From 1977 to 1983, Blanchard taught at Harvard, first as an assistant professor and then as an associate professor. He returned to MIT in 1983 and became a full professor in 1985. Between 1998 and 2003 he chaired the MIT economics department.

    The breadth of his research is unusual. With Nobu Kiyotaki he built what became foundational micro-foundations for why nominal price rigidities matter in a general equilibrium model, work that shaped an entire generation of subsequent macroeconomic modeling. With Charles Kahn he derived a solution method for linear models with rational expectations. With Danny Quah he developed a way to identify demand and supply shocks using long-run restrictions in a VAR framework. With Mark Watson he examined asset market bubbles under rational expectations.

    On labor markets he explored "hysteresis" with Lawrence Summers, the idea that a temporary shock such as a recession can leave a permanent scar on unemployment. He examined the Beveridge curve with Peter Diamond and the mobility of workers across US states in response to demand shocks with Larry Katz. With Jean Tirole he analyzed what an optimal set of labor market institutions should look like, from unemployment insurance to severance payments.

    Blanchard also wrote two broad surveys of the macroeconomics field, one in the 1990s and one in the 2000s, cataloguing what he saw as genuine progress and what he regarded as dead ends. Those surveys helped other researchers orient themselves in a fast-moving discipline.

  • Blanchard is identified as one of the leaders of New Keynesian economics, an approach that extends John Maynard Keynes's general vision by giving aggregate demand movements a central role in explaining fluctuations. The label is important because it places him within a tradition, but his contributions reshaped that tradition rather than simply inheriting it.

    With Jordi Gali he derived what is called the "divine coincidence" result: in the baseline New Keynesian model, stabilizing inflation also pushes output toward its constrained optimum at the same time. The elegance of that finding matters because it frames precisely when central banks face a genuine trade-off between inflation and output and when they do not. He and Gali also examined how real wage rigidities affect economic fluctuations and the nature of the wage-price spiral.

    On fiscal policy, his work with Roberto Perotti characterized how spending and tax changes affect both the level and the composition of output. His research on debt and deficits in economies where interest rates fall below the growth rate has become particularly relevant as interest rates stayed low across much of the developed world for an extended period after 2008.

    With Ben Bernanke, the former Federal Reserve chair, he later analyzed the US inflation episode of the 2020s. That collaboration signaled that Blanchard remained at the center of the most pressing macroeconomic debates well into the 2020s.

  • Blanchard's formal title at the IMF was Economic Counsellor and Head of the Research Department. He served under two Managing Directors: first Dominique Strauss-Kahn, then Christine Lagarde. Both gave him what he has described as wide range to think about the crises facing the global economy.

    During the Great Recession he supported global fiscal stimulus, and during the slow recovery he urged a cautious removal of that stimulus and advocated quantitative easing. His position on fiscal austerity brought the sharpest public controversy of his tenure.

    In 2012, Blanchard and Daniel Leigh studied output forecasts against actual realizations across advanced economies. They found a clear pattern: countries where fiscal consolidation was hardest were also the ones that fell furthest below their own forecasts. Their conclusion was that the adverse effects of cutting spending, the so-called fiscal multipliers, were larger than what the IMF and the European Commission had assumed. That finding led directly to a reassessment of IMF advice on the pace of fiscal adjustment.

    He also pushed back on the Fund's long-standing view that capital controls were simply bad policy. He argued that short-horizon capital flows could be harmful in both directions, overwhelming a domestic financial system when they rushed in and destabilizing it when they suddenly reversed. The IMF shifted toward a more nuanced position on capital mobility as a result.

    Under his tenure, IMF economists Jonathan Ostry and Andy Berg published research showing that inequality was detrimental to sustained growth. By April 2014, in the World Economic Outlook, Blanchard called inequality a central issue for macroeconomic developments and put it formally on the Fund's agenda. He left the IMF in 2015.

  • In 1989, Blanchard and Stanley Fischer published Lectures on Macroeconomics, based on their joint graduate course at MIT. Neither author conceived it as a textbook. It became one anyway, widely used in graduate programs around the world through the following decades.

    Blanchard also wrote a separate undergraduate textbook simply titled Macroeconomics. Its first edition came out in 1997. By 2024 the ninth edition had been published. The book has been translated and adapted into 21 foreign editions, a reach that places his framework for thinking about macroeconomics directly inside classrooms across dozens of countries.

    The students he mentored at MIT include Jordi Gali, David Laibson, Tobias Adrian, Laurence M. Ball, Roland Benabou, Ricardo J. Caballero, and Pierre-Olivier Gourinchas. Gourinchas eventually became chief economist of the IMF, holding the same position Blanchard himself had held. Adrian became head of the IMF's Monetary and Capital Markets Department. The depth of that student list is a second kind of output, one that keeps extending his influence through institutions and research that he did not write himself.

    In 2019, at the request of French President Macron, Blanchard and Jean Tirole assembled an international commission of experts to propose policies on three fronts: fighting global warming, improving the retirement system, and improving redistribution. Their report, titled Les grands defis economiques, was published in 2021.

  • Blanchard served as President of the American Economic Association in 2018-2019, having been Vice President in 1995-1996. He is a fellow of the Econometric Society and a member of the American Academy of Sciences.

    France recognized his contributions in stages. He was made a chevalier de la Legion d'honneur in 2008, the year he joined the IMF, and promoted to officier in 2016. He became a commander de l'ordre du merite in 2021.

    In 2024 the BBVA Foundation awarded him its Frontiers of Knowledge Award in the category of Economics and Finance, specifically for his contribution to the theory of business cycle fluctuations.

    In 2023 he returned to France and joined the Paris School of Economics while remaining a Senior Fellow at the Peterson Institute for International Economics in Washington. He also carries the title of Robert M. Solow Professor Emeritus at MIT, a chair named for the man who supervised his 1977 doctoral thesis. That chain from student to professor to named chair holder traces a particular kind of continuity in how economic ideas pass from one generation to the next.

Common questions

Who is Olivier Blanchard and what is he known for?

Olivier Blanchard is a French economist born on the 27th of December 1948 in Amiens, France. He is Robert M. Solow Professor Emeritus of Economics at MIT, a leading figure in New Keynesian economics, and former chief economist of the International Monetary Fund, where he served from 2008 to 2015.

What did Olivier Blanchard do at the IMF?

Blanchard served as Economic Counsellor and Head of the Research Department at the IMF from September 2008 to 2015. He supported global fiscal stimulus during the Great Recession, challenged the Fund's approach to fiscal austerity, and helped shift IMF policy on capital controls and inequality.

What is the Blanchard-Leigh fiscal multiplier finding?

In 2012, Olivier Blanchard and Daniel Leigh found that countries pursuing stronger fiscal consolidation also tended to underperform their own output forecasts. They concluded that the adverse effects of fiscal austerity, the so-called multipliers, were larger than the IMF and EU Commission had assumed, prompting a reassessment of IMF advice.

What is the divine coincidence result in New Keynesian economics?

The divine coincidence is a result derived by Blanchard and Jordi Gali showing that in the baseline New Keynesian model, stabilizing inflation simultaneously pushes output to its constrained optimum. The result helps economists identify the conditions under which a real trade-off between inflation and output actually exists.

What textbooks has Olivier Blanchard written?

Blanchard co-authored Lectures on Macroeconomics with Stanley Fischer in 1989, which became a widely used graduate text. He also wrote an undergraduate textbook called Macroeconomics, first published in 1997; the ninth edition appeared in 2024 and the book has been adapted into 21 foreign editions.

Which notable economists did Olivier Blanchard mentor at MIT?

Blanchard's doctoral students at MIT include Jordi Gali, David Laibson, Tobias Adrian, Laurence M. Ball, Roland Benabou, Ricardo J. Caballero, and Pierre-Olivier Gourinchas. Gourinchas later became chief economist of the IMF, the same role Blanchard himself held.

All sources

70 references cited across the entry

  1. 1thesisTwo essays on economic fluctuationsOlivier Blanchard — MIT — 1977
  2. 2thesisOptimal price dynamics, speculation and search under inflationRoland Jean-Marc Benabou — MIT — 1986
  3. 3webCVMichael C. Burda — Humboldt University of Berlin
  4. 4thesisThe Stochastic Behavior of Consumption and SavingsRicardo J. Caballero — MIT — 1988
  5. 5thesisEssays on macroeconomicsJordi Galí — MIT — 1989
  6. 6thesisPrice setting and investment : models and evidenceA. K. Kashyap — MIT — 1989
  7. 7thesisEssays on labor markets and macro-economic activityGilles Saint-Paul — MIT — 1990
  8. 8thesisDurable goods and transactions costs : theory and evidenceJanice Caryl Eberly — MIT — 1991
  9. 9thesisTime Series Tests of Endogenous Growth ModelsCharles I. Jones — MIT — 1993
  10. 10thesisHyperbolic Discounting and ConsumptionDavid Isaac Laibson — MIT — 1994
  11. 11thesisEssays on exchange rates, and consumptionPierre-Olivier Gourinchas — MIT — 1996
  12. 12thesisEssays in search theoryRobert Shimer — MIT — 1996
  13. 13thesisEssays on entrepreneurship, venture capital and innovationAugustin Landier — MIT — 2001
  14. 14webCVJustin Wolfers — NBER
  15. 16thesisThree essays in macroeconomicsThomas Philippon — MIT — 2003
  16. 17webOlivier Blanchard PIIE2 March 2016
  17. 20newsThe smartest economist you've never heard ofPearlstein, Steven — 2 October 2015
  18. 21webESCP Europe Alumni - Hall of FameESCP Europe Alumni
  19. 27journalMonopolistic Competition and the Effects of Aggregate DemandOlivier Jean Blanchard et al. — 1987
  20. 28journalThe Solution of Linear Difference Models under Rational ExpectationsOlivier Jean Blanchard et al. — 1980
  21. 29journalOutput, the Stock Market, and Interest RatesOlivier J. Blanchard — 1981
  22. 30citationBubbles, Rational Expectations and Financial MarketsOlivier J. Blanchard et al. — 1982
  23. 31journalReal Wage Rigidities and the New Keynesian ModelOlivier Blanchard et al. — 2007
  24. 32citationWhat Caused the US Pandemic-Era Inflation?Olivier J. Blanchard et al. — 2023
  25. 34journalPublic Debt and Low Interest RatesOlivier Blanchard — 2019
  26. 37journalThe Flow Approach to Labor MarketsOlivier Jean Blanchard et al. — 1992
  27. 44journalDisorganizationOlivier Blanchard et al. — 1997
  28. 52webOlivier Blanchard Isn't Very SeriousKrugman, Paul — 21 December 2011
  29. 53webIMF accepts it was wrong on George Osborne's austerityArmitstead, Luise — The Daily Telegraph — 6 June 2014
  30. 54webLagarde Says IMF 'Got It Wrong' on Rallying U.K. EconomyKennedy, Simon — Bloomberg News — 9 June 2014
  31. 57webTen Commandments for Fiscal Adjustment in Advanced EconomiesBlanchard, Olivier et al. — iMFdirect — 24 June 2010
  32. 59webInequality and Unsustainable Growth: Two Sides of the Same Coin?Berg, Andrew G. et al. — 8 April 2011
  33. 62newsNew fund, old fundamentals30 April 2019
  34. 63webStanley Fischer, Distinguished Fellow 2013American Economic Association