Institute for International Economic Studies

Institute for International Economic Studies The IIES at Stockholm University is one of Europe's leading institutions for research in economics. The IIES is a research institute at Stockholm University.

Founded in 1962, it has become one of the leading institutions in Europe in advanced research in economics, broadly defined. The mission of the IIES condenses the three broad goals of Stockholm University at a top level: to train PhD economists, conduct cutting-edge research, and actively engage in high-level public policy discussions in Sweden and beyond. The three aims of the IIES are tightly in

terconnected. For the training of future PhDs and for ensuring that any policy advice is updated and based on sound empirical and theoretical grounds, an ongoing close engagement with the international research frontier is necessary. To this end, the IIES researchers themselves engage in research projects aimed at broad international impact. The PhD students based at the IIES are an integral part of its research environment. A defining feature of the PhD training, which is part of a Stockholm-wide program involving other institutions, is to encourage the students to take on ambitious and challenging questions of broad value to society. Upon graduation, IIES’s students go on to tenure-track jobs at universities worldwide or positions in government and other organizations. The list of leading Swedish decision makers with an IIES background is long. The IIES has a global aim with its research. However, its international profile is broader than that. A significant fraction of the faculty as well as PhD students, along with visiting seminar speakers and researchers, come from a wide variety of countries. The working language at the IIES is English.

Congratulations to Juan Llavador Peralt on successfully defending his thesis “Firm Granularity, Growth, and Inflation Pe...
12/06/2026

Congratulations to Juan Llavador Peralt on successfully defending his thesis “Firm Granularity, Growth, and Inflation Persistence: Essays in Macroeconomics”.

His research shows how dominant firms can slow growth—and why inflation persists longer than expected.

Thanks also to opponent Miguel León-Ledesma at University of Exeter Business School for a thorough discussion.

Next up for Juan: Banco de Portugal https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-12-successful-thesis-defense-for-juan-llavador-peralt

Big congratulations to Jonatan Riberth on defending his thesis “Essays on Healthcare Demand and Long-run Inequality"!His...
11/06/2026

Big congratulations to Jonatan Riberth on defending his thesis “Essays on Healthcare Demand and Long-run Inequality"!

His research shows how personal experiences shape healthcare choices, and how inequality can persist across generations.

Next up: PostDoc for one year at Research Institute of Industrial Economics (working on a project with Petra Persson and Maya Rossin-Slater at Stanford University). He will then continue as a PostDoc at the Stockholm School of Economics.

A warm thank you to Martin Nybom from Uppsala University for providing a thorough and insightful discussion.

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-11-jonatan-riberth-successfully-defends-his-thesis

What a milestone! Congratulations to Mattias Folkestad on defending his thesis, “Power and Politics: Essays in Applied M...
10/06/2026

What a milestone! Congratulations to Mattias Folkestad on defending his thesis, “Power and Politics: Essays in Applied Microeconomics”!

His work shows how institutions shape participation, efficiency and inequality — from female role models to green policy and education.

A warm thanks to opponent Olle Folke at Uppsala University for a stimulating discussion.

Next stop for Mattias: University of Gothenburg as Wallander Postdoc!

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-10-successful-thesis-defense-for-mattias-folkestad

Huge congratulations to Thore Petersen on defending his thesis “Frictions and Flexibility in Production: Essays in Energ...
09/06/2026

Huge congratulations to Thore Petersen on defending his thesis “Frictions and Flexibility in Production: Essays in Energy Economics”!
His research shows industry can decarbonize faster and at lower cost than we thought.
Many thanks to opponent and IIES alumnus Conny Olovsson at Sveriges riksbank for a thorough and engaging discussion!

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-09-thore-petersen-successfully-defends-his-thesis

Båda sidor missar poängen i forskarbråket, skriver John Hassler Tessa Bold och Per Krusell vid det nystartade Assar Lind...
09/06/2026

Båda sidor missar poängen i forskarbråket, skriver John Hassler Tessa Bold och Per Krusell vid det nystartade Assar Lindbeck centrum i Dagens Nyheter. Politik handlar inte bara om fakta utan även värderingar.

DN Debatt. John Hassler, Tessa Bold och Per Krusell: Därför räcker inte fakta för politiska beslut – så bör forskare, politiker och medier tänka.

Congratulations to Jinci Liu on successfully defending her doctoral thesis “Managers, Workers, and Teams: Essays in Orga...
08/06/2026

Congratulations to Jinci Liu on successfully defending her doctoral thesis “Managers, Workers, and Teams: Essays in Organizational and Labor Economics”!
Her work sheds light on how feedback and workplace dynamics shape team performance and productivity.
Jinci will join National University of Singapore as Assistant Professor (after a 2-year postdoc). We look forward to following her next steps!
A warm thank you to Ricardo Perez-Truglia at UCLA Anderson School of Management for a lively and insightful discussion as opponent.
More information:
https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-08-successful-thesis-defense-for-jinci-liu

Join us in congratulating Tiago Bernardino on successfully defending his thesis "Consumption, Prices, and Policy: Essays...
05/06/2026

Join us in congratulating Tiago Bernardino on successfully defending his thesis "Consumption, Prices, and Policy: Essays in Macroeconomics and Public Economics". He will next join Universidade de Lisboa as Assistant Professor.
A warm thank you to our opponent Erik Hurst from University of Chicago Booth School of Business.
Read more: https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-05-tiago-bernardino-successfully-defends-his-thesis

Can big firms slow down growth, and keep inflation high?In his thesis, IIES graduate student Juan Llavador Peralt highli...
02/06/2026

Can big firms slow down growth, and keep inflation high?
In his thesis, IIES graduate student Juan Llavador Peralt highlights how the behavior of individual firms (especially large ones) can shape both productivity and inflation.

Key insights:

➡️ Market concentration can reduce growth
When a few firms dominate an industry, resources are less likely to flow to the most productive firms.

+10 percentage points in concentration → −3 percentage points in productivity growth

In more distorted markets, the decline can reach −13 percentage points

High concentration can create a “granular drag” on growth.

➡️ A few firms can shape entire industries
Even small differences in firm productivity can lead to long-lasting differences across sectors.

Large firms have outsized influence, meaning market structure alone can help explain why some industries grow faster than others.

➡️ Inflation persistence has firm-level roots
Why does inflation linger after a shock?

Because firms face costs of changing prices, they adjust at different times. Some react quickly, others delay, creating gradual, persistent inflation dynamics.

Importantly, this persistence emerges naturally from firms’ behavior, not from artificial assumptions in economic models.

The Takeaway:
Macroeconomic outcomes (like growth and inflation)are deeply shaped by what happens inside firms.

Understanding market structure and firm behavior is key for designing policies that support both productivity and price stability.

Juan will defend his thesis “Firm Granularity, Growth, and Inflation Persistence: Essays in Macroeconomics” on June 12.

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-02-can-big-firms-slow-down-economic-growth

Why do people hesitate to vaccinate and how is inequality reproduced across generations?In his thesis, IIES graduate stu...
01/06/2026

Why do people hesitate to vaccinate and how is inequality reproduced across generations?

In his thesis, IIES graduate student Jonatan Riberth highlights the powerful role of personal experiences in shaping health decisions, including vaccine hesitancy. In separate chapters, he examines how family background and historical wealth shocks shape inequality across generations.

Key insights:

➡️ Personal experiences strongly influence health choices

Individuals who experienced rare adverse events (such as narcolepsy after the 2009 swine flu vaccine) were much less likely to take COVID‑19 vaccines.

Health decisions are shaped not just by information, but by lived experience.

➡️ Perceptions of side effects can be misleading

People who experienced health issues shortly after vaccination, even when unrelated, were more likely to stop getting further doses

Timing of the health issue plays a key role, suggesting that misattribution of side effects is an important driver of vaccine hesitancy.

➡️ Wealth inequality can persist for centuries

A historic redistribution of wealth in Sweden in 1680 still affects descendants today.

Families that lost assets remain less wealthy up to five generations later, with little impact on education or social status.

➡️ Family matters rather than influences from the immigrant group

Differences between immigrant groups are often attributed to “ethnic capital”— the norms and expectations associated with a family’s country-of-origin group.

The thesis shows that much of what looks like an immigrant-group effect is better understood as extended family background.

The takeaway:

Health decisions are shaped not only by information, but also by how people interpret their own experiences. Inequality is deeply tied to family background, with advantages and disadvantages persisting across generations.

Jonatan will defend his thesis “Essays on Healthcare Demand and Long-run Inequality” on June 11.

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-06-01-why-do-healthcare-choices-vary-and-why-do-inequalities-endure-across-generations

Who benefits from policy—and who shapes it?In his thesis, Mattias Folkestad explores how decisions about schools, energy...
29/05/2026

Who benefits from policy—and who shapes it?
In his thesis, Mattias Folkestad explores how decisions about schools, energy, and institutions influence participation, opportunity, and inequality.

Key insights:

➡️ Role models can change society
When women were allowed to become teachers in Sweden, the effects went far beyond education.
Girls exposed to female teachers were:
• 18% more likely to join the women’s suffrage movement
• 9% more likely to enter non-domestic work
Representation didn’t just matter—it helped drive social and political change.

➡️ Local control comes with trade-offs
Giving municipalities veto power over wind farms protects local residents—but:
• Reduces national efficiency
• Shifts costs to neighboring areas
• Disproportionately affects disadvantaged communities
A clear tension between local fairness and overall efficiency

➡️ Early experiences shape political careers
People with prior election experience are:
• 10–14% more likely to run for office
• 60–70% more likely to be elected
Participation is not just about preferences—it’s about timing and access to opportunity.

➡️ Targeted resources can reduce inequality
More school funding did not raise average outcomes—but it improved results for disadvantaged students, especially recent immigrants.

The takeaway:
Policy outcomes are rarely evenly distributed. Who benefits—and who participates—depends on how power and opportunities are structured.
Small institutional choices can have lasting effects on both equality and efficiency.

Mattias will defend his thesis “Power and Politics: Essays in Applied Microeconomics” on June 10.

https://www.su.se/english/divisions/institute-for-international-economic-studies/news/articles/2026-05-29-who-participates-who-benefits-and-who-pays

Adress

Stockholm University, Universitetsvägen 10A, Floor 8
Stockholm
11418

Öppettider

Måndag 08:00 - 16:00
Tisdag 08:00 - 16:00
Onsdag 08:00 - 16:00
Torsdag 08:00 - 16:00
Fredag 08:00 - 16:00

Aviseringar

Var den första att veta och låt oss skicka ett mail när Institute for International Economic Studies postar nyheter och kampanjer. Din e-postadress kommer inte att användas för något annat ändamål, och du kan när som helst avbryta prenumerationen.

Kontakta Organisationen

Skicka ett meddelande till Institute for International Economic Studies:

Dela