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Carmen Reinhart

Economist and co-author of This Time Is Different

Born 1955

Compiled centuries of data on debt crises and defaults with Kenneth Rogoff, showing recurring patterns across countries.

Biography

Carmen Reinhart is an economist, born in Havana in 1955. Her family left Cuba for the United States in 1966, when she was ten, carrying very little. She studied at Florida International University and completed a doctorate at Columbia University in 1988 under Robert Mundell.

Unusually for an academic of her standing, she began on a trading floor. She worked as an economist at Bear Stearns in the early 1980s, becoming its chief economist before returning to graduate study, and has said the experience shaped what she thought was worth measuring. She went on to senior positions at the International Monetary Fund, then to the University of Maryland, and to the Harvard Kennedy School in 2012. From 2020 to 2022 she served as Chief Economist of the World Bank.

Her earlier research, much of it with Graciela Kaminsky, examined what precedes a crisis. Their work on twin crises documented how banking failures and currency collapses arrive together in emerging economies, each making the other worse, and searched for indicators that show up in advance. That combination of balance-of-payments and banking analysis is now standard and was not when they began.

The book she is known for, This Time Is Different, written with Kenneth Rogoff and published in 2009, is a work of data collection before it is a work of argument. They assembled sovereign default, banking crisis, inflation and currency crash records across roughly sixty-six countries and eight centuries, a considerable share of it recovered from sources that had never been in a comparable dataset. The findings that follow are about recurrence: default is serial, meaning countries that have defaulted tend to do so again; recoveries from crises that began in the financial system are unusually slow; and domestic public debt had been systematically under-recorded in earlier work. The title names the sentence that appears before every episode.

Career timeline

  1. 1955
    Born in Havana, Cuba.
  2. 1966
    Emigrates with her family to the United States.
  3. 1982
    Works as an economist at Bear Stearns, later becoming its chief economist.
  4. 1988
    Completes a doctorate in economics at Columbia University.
  5. 1999
    Publishes work with Graciela Kaminsky on twin banking and currency crises.
  6. 2009
    Publishes This Time Is Different with Kenneth Rogoff.
  7. 2012
    Joins the Harvard Kennedy School.
  8. 2020
    Becomes Chief Economist of the World Bank, serving until 2022.

How she approaches financial history

Reinhart's method is to treat crises as a sample rather than as a sequence of unique events. The obstacle to doing so was never conceptual; it was that the data did not exist in comparable form. Much of her working life has gone into building it, recovering default and debt records from archives and official histories across centuries and currencies so that episodes can actually be counted rather than described one at a time.

Once counted, the pattern that emerges is recurrence rather than uniqueness. Serial default is the clearest instance: sovereign default is not a one-off catastrophe that reforms a country permanently, but something that tends to happen repeatedly to the same countries over long periods as they go through cycles of borrowing and adjustment. That is a statement about base rates, and base rates are exactly what the participants in any given episode do not have in front of them.

The title of the book carries the argument. Every episode arrives with a reason it is not comparable to the last one: a new financial technology, better policy, a structural change in the economy, deeper markets. Those reasons are frequently true in detail and almost never sufficient. Her point is not that nothing changes but that the specific claim of exemption is itself the most reliably recurring feature.

The distinction she is careful about, and which some readers of her work have not been, is between documenting a pattern and explaining it. Establishing that high debt and slow growth occur together does not establish which causes which, and the historical record is far better at showing that something recurs than at showing why or when it will next occur.

Key ideas

Tap any idea to expand a plain-English explanation, why it matters, and where to learn more.

Serial default

Countries that have defaulted on sovereign debt tend to default again over long horizons, rather than defaulting once and reforming permanently.

Why it matters

It reframes sovereign risk as a repeated characteristic rather than a single historical event to be discounted.

Example

The pattern holds across centuries and across very different institutional arrangements.

Financial crises leave slow recoveries

Downturns that begin in the financial system are followed by recoveries that are notably longer than ordinary ones.

Why it matters

It sets an expectation for how long an aftermath lasts, which is different from asking how deep the fall was.

Example

Employment and output measures take considerably longer to return to prior levels after a banking crisis.

The exemption claim is the pattern

Every episode arrives with a specific, often accurate, reason why the historical record does not apply this time.

Why it matters

It gives a reader something concrete to notice in current commentary rather than a general warning about optimism.

Example

New financial instruments and better policy are cited before most episodes and are usually true in detail.

Twin crises

Banking failures and currency collapses tend to arrive together in emerging economies, each worsening the other.

Why it matters

It links two literatures that were separate, and it is why analysis of one now routinely examines the other.

Example

A banking system under strain and a currency under pressure reinforce each other through the same balance sheets.

Domestic debt was missing from the record

Earlier crisis research concentrated on external debt and systematically under-recorded domestic public borrowing.

Why it matters

Correcting the omission changed the measured picture of how indebted countries actually were before their crises.

Example

Their dataset recovered domestic debt series that had not previously been assembled comparably.

Major contributions

  • Assembled, with Kenneth Rogoff, a dataset of sovereign defaults, banking crises, inflation and currency crashes spanning roughly sixty-six countries and eight centuries.
  • Documented serial default as a recurring characteristic of sovereign borrowers.
  • Worked with Graciela Kaminsky on twin banking and currency crises and on leading indicators.
  • Showed that domestic public debt had been systematically under-recorded in earlier crisis research.
  • Served as Chief Economist of the World Bank from 2020 to 2022.

Major successes

  • Became chief economist at Bear Stearns before returning to complete her doctorate.
  • Held senior research positions at the International Monetary Fund.
  • Published This Time Is Different in 2009, which reached readers well beyond academic economics.
  • Was appointed Chief Economist of the World Bank in 2020.
  • Holds a chaired professorship at the Harvard Kennedy School.

Important books

  • This Time Is Different2009

    Written with Kenneth Rogoff. A quantitative history of financial crises across eight centuries, built on a dataset the authors assembled from archival sources.

Influence on investors

The dataset is the durable contribution. By making episodes comparable across centuries and currencies, it converted crisis history from a collection of narratives into something that can be counted, and later researchers use it regardless of what they conclude from it.

The phrase in the title has entered general use as shorthand for the reasoning that precedes an episode, which is an unusual fate for an academic book and is arguably its widest practical effect on how investors talk.

Her work with Kaminsky joined banking and currency crisis analysis, and examining both together is now the default in emerging-market work rather than a specialisation.

Criticisms and debates

A balanced view includes the main criticisms and open debates, presented neutrally.

  • A 2010 paper with Rogoff, Growth in a Time of Debt, associated public debt above roughly ninety percent of output with lower growth. In 2013 researchers at the University of Massachusetts Amherst identified a spreadsheet error, together with country weighting and data exclusions, and correcting these weakened the finding. The authors acknowledged the coding error while maintaining a broader association.
  • Even the corrected relationship is a correlation, and whether high debt slows growth or slow growth raises debt remains genuinely unresolved.
  • The paper was cited in support of fiscal consolidation in several countries, and critics argue the policy use went well beyond what the evidence supported, which is a criticism of the use as much as of the research.
  • Comparing financial data across eight centuries requires strong assumptions about the comparability of monetary systems, accounting practices and institutions that differ enormously.
  • Identifying recurrence does not supply timing, so the work tells an investor what tends to happen without indicating when, which limits what can be done with it.

Lessons for investors

Plain-English takeaways. Context for learning, not advice to buy or sell anything.

  • 1Treat crises as a category with base rates rather than as unique events without precedent.
  • 2Expect recoveries from downturns that started in the financial system to take longer than ordinary ones.
  • 3Notice the specific reason being offered for why history does not apply this time, because one is always offered.
  • 4Separate a documented pattern from an explanation of it, especially when the pattern is being used to argue for something.

Notable quotes

“Serial default is a nearly universal phenomenon as countries struggle to transform themselves.”

Sourced: This Time Is Different, 2009

Context: A finding from eight centuries of sovereign-debt data. It describes national governments, not individual borrowers.

See Carmen Reinhart in the quote library

Frequently asked questions

Who is Carmen Reinhart?

Carmen Reinhart is an economist born in Havana in 1955 who teaches at the Harvard Kennedy School and served as Chief Economist of the World Bank from 2020 to 2022. She co-wrote This Time Is Different with Kenneth Rogoff.

What is serial default?

Her finding that countries which have defaulted on sovereign debt tend to default again over long periods, rather than defaulting once and reforming permanently. It makes sovereign risk a repeated characteristic rather than a historical event.

What does the title This Time Is Different mean?

It names the reasoning that appears before every episode: a specific, often accurate, explanation of why the historical record does not apply on this occasion. The claim of exemption is itself the recurring feature.

What was the Growth in a Time of Debt controversy?

A 2010 paper with Rogoff linked high public debt to lower growth. In 2013 researchers found a spreadsheet error along with country weighting and exclusion choices; correcting them weakened the result. The authors acknowledged the coding error and maintained a broader association.

What are twin crises?

Banking failures and currency collapses arriving together in emerging economies, each making the other worse. Her work with Graciela Kaminsky documented the pattern and searched for indicators that appear beforehand.

Can this work predict the next crisis?

No. It establishes base rates and typical aftermaths rather than timing. It tells an investor what tends to happen and how long recoveries usually take, not when the next episode begins.

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