No Undesirable Side Effects of Financial Incentives in Covid-19 Vaccination

15-01-2023: Financial incentives work in many areas, but they are controversial. Critics worry that incentives designed to encourage certain behaviors may also lead to undesirable side effects. A recent study refutes these concerns.

Florian Schneider, an economist at the University of Zurich, has used the pandemic to answer a question that has long plagued behavioral economics: Do financial incentives designed to encourage socially desirable behavior lead to more harm than good in the long run?


Possible long-term effects of financial incentives

Researchers and policymakers have been voicing their concerns for decades: financial incentives could crowd out intrinsic and prosocial motivations, undermine civic responsibility and foster the attitude that we should be financially compensated for every non-self-serving action. There are also moral considerations, explains Florian Schneider: "Do such incentives undermine self-determination by tempting people to act against their own values? And do they thereby reduce trust in the measure itself and in public institutions?"

To test these concerns, Florian Schneider, together with an international group of researchers, investigated a range of potentially negative consequences using a current and widely discussed measure: financial incentives for Covid-19 vaccination. He found the data for this in Sweden. In 2021, more than 5000 people took part in a study in which part of the group was offered the equivalent of about 20 Swiss francs for the first Covid vaccination. The researchers supplemented this data with records on demographics, income and attitudes. 

The financial incentive increased the vaccination rate from 72 to 76 percent. However, Florian Schneider and his co-authors Armando Meier (University of Lausanne) and Pol Compos-Mercade (Lund University) were more interested in the effect of the financial incentive on the following aspects:


  • Willingness to receive second and third (booster) vaccinations - without financial incentive.
  • Willingness to donate blood
  • Assumptions about the safety and effectiveness of the vaccination
  • Trust in vaccination providers (pharmaceutical companies, health authorities, researchers)
  • Sense of self-determination in decision to vaccinate
  • Moral convictions and civic responsibility

No undesirable side effects

The results speak for themselves: "Our study gives the all-clear: We did not find any undesirable side effects in any of the above-mentioned areas due to a moderate financial incentive for the Covid-19 vaccination", Florian Schneider summarizes the findings. It is particularly noteworthy that the researchers found no impact on attitudes towards individual civic responsibility, moral convictions or sense of self-determination.

One caveat remains, however, as Florian Schneider notes: "Our data come from a wealthy, Western country and are based on a moderate financial incentive. We do not yet know whether the findings can be generalized to poorer countries or to very high financial incentives." 

Recognition for the young economist

That his research has been published in Nature, one of the leading scientific publications, is very rewarding for the economist, who obtained his PhD from the Department of Economics in 2020. "The question had been on my mind for a while. I was lucky that I found interested co-authors and that we had access to a current and comprehensive data-set with which we could answer one of the big questions of our subject, at least to some extent".

Schneider, F.H., Campos-Mercade, P., Meier, S. et al. Financial incentives for vaccination do not have negative unintended consequences. Nature (2023).


Florian Scheuer - New Chairman of the Department of Economics

01-01-2023: Florian Scheuer is the new Chairman of the Department of Economics.

He is the UBS Foundation Professor of Economics of Institutions. His research connects the fields of public finance, economic theory, macroeconomics and political economy. His work has been published in the American Economic Review, the Journal of Political Economy, the Quarterly Journal of Economics and the Review of Economic Studies, among other journals.

Florian Scheuer is an Editorial Board Member of the Review of Economic Studies and was a Co-Editor of Theoretical Economics from 2018 to 2022. He is a Co-Director of the Working Group on Macro Public Finance (MPF) at the National Bureau of Economic Research (NBER) in Cambridge, and a Research Fellow of the Centre for Economic Policy Research (CEPR) in London and the Center for Economic Studies/ifo Institute (CESifo) in Munich. He was awarded an ERC Starting Grant for his project “Inequality: Public Policy and Political Economy” in 2017 and the Hermann Heinrich Gossen Prize for the best economist under the age of 45 in German-speaking countries in 2021.

We wish him much success in this new role.

Conflicting Motives Govern Sense of Fairness


05-12-2022: The perception that resources are unfairly distributed is at the root of many social conflicts. In a paper recently published in PNAS, Christian Ruff and Jie Hu investigate the motives influencing our perception of justice in resource distribution. They found that although people feel an aversion to inequality, they are also reluctant to harm others and to upend existing social hierarchies. 
Research shows that two conflicting motives play a particularly important role in the assessment of distributive justice: inequality aversion and the reluctance to harm others. To understand how these motives interact with each other, a team around Neuroeconomists Jie Hu and Christian Ruff used functional magnetic resonance tomography (fMRT) to study the brain activity of test participants during a redistribution task. 
The participants were generally more willing to make others financially worse off if this reduced inequality – in particular if the initial inequality was substantial. However, there seemed to be a limit: a redistribution that made the initially advantaged person worse off than the other was not chosen, even if this would lead to more equality overall. 

Press Release

Interview with Christian Ruff (German, starting min 35:53) 



16-11-2022: Awards and Grants

Joachim Voth has been elected to the Fellowship of the Econometric Society. Fellows represent the highest authority in the field of economic theory; the Society is an international society for the advancement of economic theory in its relation to statistics and mathematics.

Dina Pomeranz and her Team won the Innovation in Teaching Award from the European Economic Association (EEA) for their work with the Graduate Applications International Network (GAIN), which supports students from all African countries entering Economic studies. 

David Hémous receives the European Award for Researchers in Environmental Economics under the Age of Forty for his significant contributions to the analysis of the role of technological changes, the dynamics of the economy and of climate change.

Sandro Ambühl and co-authors win 2022 Exeter Prize for their paper “What motivates paternalism? An experimental study”.

Sandro Ambühl awarded an SNSF Starting Grant by the Swiss National Science Foundation (SNSF) for his project “Positive Welfare Economics”.

David Dorn has been elected to the Council of the European Economic Association (EEA). He will sit for a term of five years, starting on January 1, 2023. David Dorn will join Dina Pomeranz and Florian Scheuer from our Department in this role. 

SNSF Starting Grant to Sandro Ambühl

Portrait of Sandro Ambühl

11-11-2022: Sandro Ambühl has been awarded an SNSF Starting Grant of CHF 1.3 million by the Swiss National Science Foundation (SNSF) for his project “Positive Welfare Economics”. Congratulations.




Early Self-Regulation Boosts Children’s Educational Success

Early Self-Regulation Boosts Children’s  Educational Success

13-10-2022: A study by the universities of Zurich and Mainz has shown that teaching children how to manage their attention and impulses in primary school has a positive long-term effect on their later educational success.

Self-regulation, i.e., the ability to manage attention, emotions and impulses, as well as to pursue individual goals with perseverance, is not a skill that we usually associate with young children. However, the school closures due to the pandemic and the increased usage of digital media by children have now shown how important these abilities are, especially for children.

Studies show that people who demonstrated self-regulation as children go on to have on average higher income, better health and greater life satisfaction. They also show that the ability to exert self-regulation can already be trained in a targeted manner in childhood. How can the training of self-regulation skills be integrated into the standard elementary school day without taking up too much teaching time? Is it possible to teach young pupils an abstract self-regulation strategy in an appropriate way? Does teaching such skills have the potential to improve long-term educational success?

Press release

Prof. Voth elected Fellow of the Econometric Society

Portrait of Joachim Voth

26-09-2022: Joachim Voth has been elected to the Fellowship of the Econometric Society. Fellows represent the highest authority in the field of economic theory. The Econometric Society is an international society for the advancement of economic theory in its relation to statistics and mathematics. Since its founding in 1930, the Society has elected only 700 fellows; 69 of them have won the Nobel Prize in Economics. Joachim Voth is the second member from the Department of Economics, after Ernst Fehr, to receive the honor. The Society’s members nominate new Fellows each year in the fall. Prof. Voth’s area of specialization is economic and financial history. His research has been published in leading journals in economics, as well as in three books. His principal areas of research include long-run economic growth, the history of sovereign debt, causes and consequences of political extremism, and the economic history of the Industrial Revolution.

Fellows of the Econometric Society 2022

Remote learning caused worse learning outcomes during the pandemic


2022.05.30: "How much did children really learn with remote classes during the pandemic?" And why this question matters.

By the end of March 2022, schools in 23 countries were still shut down, affecting 400 million children worldwide and leading to tremendous learning losses, especially in low and middle-income countries. This situation is still critical for those countries as vaccination rates are dragging and putting pressure towards school closures.

Guilherme Lichand, Professor of Economics at our Department and Chairman at the Center for Child Well-being and Development (CCWD) and Onicio Leal Neto, Post-Doc researcher, conducted a study in Brazil, in the Sao Paulo State, and found out some striking results:

Remote learning indeed caused worse learning outcomes during the pandemic, above and beyond other direct effects of COVID-19 and longer school closures causally magnified these effects.

The middle- and high-school students in São Paulo, learned only 40% in Portuguese and 20% in math classes relative to the in-person equivalent. Students reported they learned on average only 27,5% of what they would have learned in-person instruction and student dropouts might have increased from 10% to 35%.

Read the summary of the paper in the blog post in Nature Human Behavior

Even a little alcohol may be bad for the brain


2022.03.07: According to a recent study in "Nature Communications", even moderate alcohol consumption is associated with a smaller brain volume and a reduced mass of grey and white brain matter.

It is well known that chronic excessive alcohol abuse is detrimental to health. However, the evidence to date is contradictory as to whether light to moderate alcohol consumption could have similar negative consequences.

Gökhan Aydogan, a postdoctoral researcher at the Zurich Center for Neuroeconomics, was part of the international and interdisciplinary research team that studied a huge sample of 36,678 adults from the UK. "We already found negative associations between alcohol consumption and brain structure in people who consumed only one to two units of alcohol per day," he summarizes the findings. In the study, one pint of beer or a large glass of wine was considered to be two units of alcohol.

Effects are worse the more you drink

The study offers evidence that the effects of alcohol consumption on the brain are exponential. Gökhan Aydogan explains: "The last beer is not only responsible for the hangover, but also has a greater negative effect on brain ageing than all the previous ones consumed that day".

The researchers assume that brain of people consuming one unit of alcohol per day age around 1 year more than the brains of people who consume no alcohol at all. At four units per day, the difference in brain ageing is ten years.

The authors emphasize, however, that the study was not designed to establish a causal relationship between alcohol consumption and the change in brain structure, i.e. to prove a cause-effect relationship. Further studies on this would therefore be of great interest.

Article in Nature Communications

The war in Ukraine, SWIFT sanctions and the Renminbi as an international currency


2022.03.04: Mathias Hoffmann has recently given some interviews on Swiss Italian radio RSI in which he analyses the economic impacts of the SWIFT ban measures that were taken in the aftermath of the invasion of the Ukraine.

While the SWIFT sanctions do have a short-term effect on the Russian economy, Mathias Hoffmann explains that on the longer run, some adjustments will be inevitably made. In the current situation, China will probably become a larger gateway to channel Russian oils and gas to global markets, which might represent a unique opportunity for China to take a decisive step in establishing the renminbi as a serious rival to the dollar.


Solving social challenges through Social Business


Guilherme Lichand’s Social Entrepreneurship Seminar asks students to solve a social challenge by developing an idea and a viable business plan. Students acquire practical skills such as how to develop a business idea and create a business plan, measure social impact, pitching ideas to funding panels, mentoring, and handling setbacks.

To kick off this year’s seminar, the participants were invited to a private screening of two film: Machines, a portrait of workers in an Indian textile factory and Invisible Demons, an immersive documentary on the effects of climate change.

Introducing the following panel discussion Guilherme Lichand said how the poetic, yet disturbing documentaries left him hanging between hope and despair about the challenges the world is facing today. Rahul Jain, the director of both films, Simona Scarpaleggia, Cedric Mutz and Guilherme Lichand shared their perspectives and experiences in projects improving the working situation of individuals and environmental issues.


Understanding Who Commits Which Crimes


2022.01.31: Why do some young men turn to crime, while others don’t? An international study shows that preferences such as risk tolerance, impatience and altruism as well as self-control can predict who will commit crime.

According to economic theory, risk-tolerant, impatient and selfish people with a low level of education are more likely to commit crime than people who are highly educated, risk averse, patient and selfless. However, confirming this hypothesis with scientific methods isn’t that easy. The education levels and socioeconomic factors of convicted criminals can be compared with those of the general population relatively easily. But assessing people’s risk tolerance, patience and altruism is much more difficult. Together with an international team of economists, Ernst Fehr has published a study that links data on risk, time and social preferences of young men to factors such as education, income, self-control and criminal records.  Risk-tolerant, impatient young men are more likely to commit property crime, while people with low self-control tend to commit violent, drug and sexual offenses.   

Press release

Florian Scheuer elected Economic Theory Fellow

Porträt Florian Scheuer

2022.01.04: The Society for the Advancement of Economic Theory (SAET) elected Florian Scheuer Economic Theory Fellow. Economic Theory Fellows are nominated based on their scientific excellence, originality, and leadership, high ethical standards, and scholarly and creative achievement. The primary qualification for fellowship is to have substantially advanced economic theory. Congratulations!

Society for the Advancement of Economic Theory (SAET)

Income Slump Motherhood: article by Josef Zweimüller in "Schweizer Monat"

Porträt Josef Zweimüller

2021.12.03: There are still considerable income differences between men and women. The largest part of the pay gap is due to maternity. This is because, after the birth of the first child, the salaries of mothers fall sharply behind those of men and childless women. The "child penalty" measures the difference in income between mothers and women without children. On average, Swiss mothers earn 60 percent less in the year after the birth of their first child than they did before motherhood. This number remains constant in subsequent years. Switzerland even has one of the highest child penalties among OECD countries.

Empirical studies have shown that family policies such as extended parental leave, job guarantees, or subsidized childcare only have a short-term impact on the child penalty. Gender norms – more specifically, the role of women in the conflicting fields of family and career – have a greater impact on the overall measure of the child penalty: the more conservative the environment, the higher the child penalty. In conservative countries such as Germany, Austria and Switzerland, the child penalty is multiple times higher than in the socially liberal countries of Scandinavia. Therefore, Joseph Zweimüller argues for a better understanding of the factors responsible for the adherence to conservative gender norms in order to eventually reduce the existing inequalities between men and women.

Schweizer Monat (in German)

Global Gateway – EU alternative to China’s Belt and Road initiative

Ralph Ossa in SRF Tagesschau

2021.12.01: With its Belt and Road initiative, China has invested a lot of money in infrastructure projects in many countries. Now the EU is setting a strong geopolitical counterweight with its rival project Global Gateway. The EU wants to invest 300 billion euros in emerging and developing countries for environmental protection, health, energy, and transport. The project should on the one hand be able to meet local needs and on the other address global challenges, says EU Commission President Ursula von der Leyen. This is a new strategic approach to investment. Unlike China, the EU wants to involve the private sector in financing. The countries in which investments are made should have a trustworthy partner in the EU. Van der Leyen emphasizes that Global Gateway should give the EU countries a competitive advantage.
How realistic is this plan in view of China’s enormous efforts? The European response differs in two main respects, explains Ralph Ossa: "First, in terms of investment volume. The Chinese plan is about three times larger than the European one. The second major difference lies in the investment priorities. The Chinese are investing primarily in transportation infrastructure. The Europeans are focusing differently, for example on digitalization." According to Ossa, the EU can offer a valuable alternative with its program for those countries that have had no choice but to cooperate with the Chinese because they urgently need the infrastructure projects.

SRF Tagesschau (in German)

The Zurich Graduate School of Economics is recruiting new PhD students

Chess game

2021.11.03: The Zurich Graduate School of Economics (Zurich GSE) is recruiting new PhD students. Applications are now open.




ECON Teaching Center receives teaching credit for project on gamification of learning content

Chess game

2021.10.22: The University of Zurich's teaching credit promotes innovation in teaching and the further development of existing teaching formats. The ECON Teaching Center receives a UZH teaching credit for their project 'Gamification of learning content' which expands the learning opportunities for students in playful ways. A browser-based game picks up on the course content and combines it with competence experience, self-determination, social inclusion and meaning. In a playful way, students are guided through all taxonomy levels in a game unit. The project leads to more active learning time and an understanding of the applications of the course content in practice. Added value for teaching results from interdisciplinary transferability, portfolio expansion of teaching opportunities and efficient application of the taxonomy levels. The game is developed for the module Microeconomics 1 taught by Ulf Zölitz.