Jan's research interests are in behavioural economics, public policy, and human wellbeing. His research has been published in academic outlets such as Science, Nature, The Review of Economics and Statistics, Psychological Science, and The Proceedings of the National Academy of Sciences (PNAS). The underlying theme throughout his research is the study of human wellbeing. This ongoing research agenda has led to new insights in the relationship between happiness and income, productivity, economic growth, and inequality. His research was selected among 'The Management Ideas that Mattered Most in 2016' by the Harvard Business Review and he was awarded the inaugural Ruut Veenhoven Award in 2015 for his contributions to the scientific study of happiness.
Jan has joined John Helliwell, Richard Layard, and Jeffrey Sachs as an associate editor of the World Happiness Report. He is a member of the Global Happiness Council and chairs its Workplace Wellbeing committee.
He is a frequent advisor to governments and businesses, including the Gallup Organization and start-ups such as Psychological Technologies, Aula, and Butterfly AI.
Prior to joining Oxford, Jan was Assistant Professor in Political Economy and Behavioural Science at University College London and a Visiting Professor in Economics and Political Science at INSEAD. He is affiliated with the Centre for Economic Performance at LSE and with the Centre for Experimental Social Sciences at Nuffield College.
Jan obtained his PhD from the London School of Economics and was a Fulbright Scholar at Harvard University. His research and commentary regularly feature in the media, including in The Economist, the Financial Times, the Harvard Business Review, and on the BBC. He is a frequent speaker at academic and non-academic conferences, including at PopTech and TED.

VoxEU Column
How to improve tax compliance: Evidence from population-wide experiments in Belgium
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- Taxation

VoxEU Column
Employee wellbeing, productivity, and firm performance: Evidence from 1.8 million employees
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- Labour Markets 
- Productivity and Innovation
VoxEU Column
Busts hurt more than booms help: New lessons for growth policy from global wellbeing surveys
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- Frontiers of economic research 
- Macroeconomic policy
VoxEU Column
Can giving taxpayers a voice increase tax compliance?
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- Taxation