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Martin Hedesström

Senior lecturer

Martin Hedesström
Senior lecturer
+46 31 786 1853

Room number: 537
Postal Address: Box 500, 40530 Göteborg
Visiting Address: Haraldsgatan 1 , 41314 Göteborg

Department of Psychology (More Information)
Box 500
405 30 Göteborg
Visiting Address: Haraldsgatan 1 , 413 14 Göteborg

About Martin Hedesström


PhD in Psychology, University of Gothenburg 2006. Docent (Assoc. Prof.) 2014. MSc in Information Systems, London School of Economics and Political Science 1998. Visiting Scholar at the Centre for Decision Sciences, Columbia Business School, New York 2014/15.

Co-Director of the research group Judgement, Decision Making and Social Psychology (JDMS).


I am Course Director for the undergraduate course Judgment and decision making (PX1110), and for the postgraduate course Psychological perspectives on economic behaviour (PC2115). I also teach social cognition and attribution.

Research interests

Choice architecture (”nudging”); moral/environmental decision making; stock market psychology

My research is predominantly experimental and often concern topics at the intersection between psychology and economy, for example, stock market investment decisions. I also investigate moral aspects of decision making. How do people make tradeoffs between choices that benefit them personally versus choices that benefit society but come with a cost?

Current research

Downstream behavioural effects of choice architecture interventions, a project funded by the Marcus and Amalia Wallenberg Foundation:

Most of today’s environmental, financial, and health problems are rooted in our day-to-day choices. Drawing on insights from psychology, the emerging science of choice architecture (CA) prescribes how presentation formats could be tailored in ways that help people choose options that are beneficial to society as well as to themselves, without restricting their freedom of choice. CA interventions—also called “nudges”—have proven effective in increasing pension saving rates, improving medical prescription adherence, and reducing CO2 emissions and tax fraud. Yet, previous CA research has focused exclusively on the specific choice targeted by the CA intervention. This constitutes a significant caveat, since assessing the net benefit of a CA intervention requires taking into account not only its effect on a first choice, but also how this “nudged” choice spills over to subsequent choices in the same and other domains. Knowing downstream consequences of nudged behaviour is essential in order to design CA interventions in ways that promotes positive behavioural spillover and averts backfiring. This project, which I lead, aims to contribute towards finding new ways of promoting the sustained, long-term behavioural changes required in order to meet societal challenges such as climate change and health.


Latest publications

Downstream consequences of disclosing nudges: How increased transparency affects the effectiveness and perceptions of interventions
Patrik Michaelsen, Lina Nyström, Timothy Luke, Lars-Olof Johansson, Martin Hedesström
40th Annual Conference of the Society for Judgment and Decision Making. Montreal: 15-18 November., Conference contribution 2019
Conference contribution

Increasing transparency may improve net effects of default nudges
Lina Nyström, Patrik Michaelsen, Timothy Luke, Martin Hedesström
40th Annual Conference of the Society for Judgment and Decision Making. Montreal: 15-18 November 2019., Poster 2019

A demonstration of positive nudge-induced behavioral spillover
Martin Hedesström, Patrik Michaelsen, Lina Nyström, Timothy Luke, Lars-Olof Johansson
40th Annual Conference of the Society for Judgment and Decision Making. Montreal: 15-18 November 2019., Poster 2019

Influencing behavioral spillover from nudges through feedback
Patrik Michaelsen, Magnus Bergquist, Andreas Nilsson, Lars-Olof Johansson, P. Wesley Schultz et al.
39th Annual Conference of the Society for Judgment and Decision Making. New Orleans: 16-19 November 2018., Poster 2018

Environmental, Autonomous and Satisfied: Experimental Evidence for Positive Experiences of Green Nudges
Patrik Michaelsen, Lars-Olof Johansson, Martin Hedesström
32nd annual meeting of the Swedish Area Group in Environmental Psychology (SAGEP). Uppsala: 6-7 November, Conference contribution 2017
Conference contribution

Behaviour in financial markets
Martin Hedesström
Economic psychology / Rob Ranyard (red.), Chapter in book 2017
Chapter in book

What’s the net benefit of a nudge? Exploring behavioral spillover from choosing a default
Martin Hedesström, Lars-Olof Johansson
Proceedings of the 37th Annual Conference of the Society for Judgment and Decision Making. November 18 – 21. Boston., Conference contribution 2016
Conference contribution

Behavioral spillover effects of default choice
Martin Hedesström, Lars-Olof Johansson
Proceeding of 31st International Congress of Psychology, Yokohama, Japan, Conference contribution 2016
Conference contribution

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Page Manager: Ann-Sofie Sten|Last update: 1/29/2014

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Utskriftsdatum: 2020-02-19