Lionel Guetta-Jeanrenaud

Research assistants & interns

Lionel Guetta-Jeanrenaud

Research Assistant

Lionel is working at Bruegel as a Research Assistant. He studied economics at the Ecole normale supérieure de Lyon, in France. Before joining Bruegel, Lionel worked as a research assistant at the Department of Economics of Harvard University.

His Master’s thesis investigated the impact of newspaper closures on anti-government sentiment in the United States. In addition to media economics and political economy, his research interests include fiscal policy and the digital economy.

Lionel is a dual French and American citizen.

Contact information

[email protected]

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Blog Post

How rate increases could impact debt ratios in the euro area’s most-indebted countries

Debt-to-GDP ratios should continue to fall in euro-area countries despite rising interest rates, though after 2023 the situation might vary across countries.

By: Grégory Claeys and Lionel Guetta-Jeanrenaud Topic: Macroeconomic policy Date: July 5, 2022

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External Publication

Fragmentation risk in the euro area: no easy way out for the European Central Bank

The ECB should design a specific tool that will accompany interest rate hikes to neutralise the risk of fragmentation directly for countries facing it, staying within the bounds of the EU treaties and ensuring political legitimacy. We also advocate structural changes to the ECB’s collateral framework to avoid unnecessary uncertainty surrounding the safe asset status of European sovereign bonds.

By: Maria Demertzis, Grégory Claeys and Lionel Guetta-Jeanrenaud Topic: European governance, European Parliament, Testimonies Date: June 8, 2022

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Blog Post

Venture capital: a new breath of life for European entrepreneurship?

Whether the dynamism of European venture capital of the past two years can be sustained and kick start a credible alternative to bank finance in the European Union remains to be seen.

By: Maria Demertzis and Lionel Guetta-Jeanrenaud Topic: Banking and capital markets Date: February 10, 2022

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Blog Post

Who is suffering most from rising inflation?

The lowest income households are suffering disproportionally from the current inflation increase, with rising energy prices the main culprit.

By: Grégory Claeys and Lionel Guetta-Jeanrenaud Topic: Macroeconomic policy Date: February 1, 2022

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Working Paper

The effect of COVID certificates on vaccine uptake, public health, and the economy

An analysis of the incentive effects of COVID certificates on vaccine uptake, health outcomes and the economy.

By: Miquel Oliu-Barton, Bary Pradelski, Nicolas Woloszko, Lionel Guetta-Jeanrenaud, Philippe Aghion, Patrick Artus, Arnaud Fontanet, Philippe Martin and Guntram B. Wolff Topic: Digital economy and innovation Date: January 17, 2022

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Blog Post

What will be the impact of Europe’s next round of COVID-19 restrictions?

As COVID-19 cases surge, the choice of restrictions, and the details of their implementation, can have a major influence on the degree to which business is impacted.

By: J. Scott Marcus and Lionel Guetta-Jeanrenaud Topic: European governance Date: December 23, 2021

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Blog Post

Germany’s post-pandemic current account surplus

The pandemic has increased the net lending position of the German corporate sector. By incentivising private investment, policymakers could trigger a virtuous cycle of increasing wages, decreasing corporate net lending, which would eventually lead to a reduction of the economy-wide current account surplus.

By: Lionel Guetta-Jeanrenaud and Guntram B. Wolff Topic: European governance, Macroeconomic policy Date: October 21, 2021

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Blog Post

A world divided: global vaccine trade and production

COVID-19 has reinforced traditional vaccine production patterns, but the global vaccine trade has changed considerably.

By: Lionel Guetta-Jeanrenaud, Niclas Poitiers and Reinhilde Veugelers Topic: Global economy and trade Date: July 20, 2021

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Blog Post

Fair vaccine access is a goal Europe cannot afford to miss – July update

European countries must do more to tackle the vaccine uptake gap. Vaccination data should be published at the maximum granularity level so researchers and local decision-makers can monitor progress.

By: Lionel Guetta-Jeanrenaud and Mario Mariniello Topic: Macroeconomic policy Date: July 14, 2021

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Blog Post

How have the European Central Bank’s negative rates been passed on?

Negative rate cuts are not that different from ‘standard’ rate cuts. Like them, they reduce banks’ margins, but this effect does not appear to be amplified below 0%.

By: Grégory Claeys and Lionel Guetta-Jeanrenaud Topic: Macroeconomic policy Date: July 7, 2021

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Policy Contribution

Europe should not neglect its capital markets union

The European Union’s capital markets remain very underdeveloped compared to the United States. The market for equity, as measured as the size of the total market capitalisation of listed domestic firms relative to GDP, is much larger in the US and in Japan than in Europe.

By: Maria Demertzis, Marta Domínguez-Jiménez and Lionel Guetta-Jeanrenaud Topic: Banking and capital markets Date: June 7, 2021

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Blog Post

How has COVID-19 affected inflation measurement in the euro area?

COVID-19 has complicated inflation measurement. Policymakers need to take this into account and should look at alternative measures of inflation to understand what is actually happening in the economy.

By: Grégory Claeys and Lionel Guetta-Jeanrenaud Topic: Macroeconomic policy Date: March 24, 2021

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