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Dr Tomás Lejarraga
Dr Tomás Lejarraga
Tenure-track contract Lecturer with a PhD
Business Organization

Dr Tomás Lejarraga


Brief CV

Tomás is the Director of the UIB Decision Science Laboratory. He received his doctorate in Universitat Pompeu Fabra (Spain) in 2009. He was a Postdoctoral Fellow at the Dynamic Decision Making Laboratory in Carnegie Mellon University (USA), and later a Visiting Associate Professor at the Universitat de les Illes Balears (Spain). From 2013 to 2016, Tomás was a Research Scientist at the Center for Adaptive Rationality in the Max Planck Institute for Human Development in Berlin (Germany). He is interested in how individuals and groups explore, process, and integrate descriptive (symbolic information) and personally experienced information when making decisions. His most recent publications are:

Lejarraga, T., Schulte-Mecklenbeck, M., Pachur, T., & Hertwig, R. (2019). The Attention-Aversion Gap: How Allocation of Attention Relates to Loss Aversion, Evolution and Human Behavior, in press

Lejarraga, T., Frey, R., Schnitzlein, D., & Hertwig, T. (2019). No Effect of Birth Order on Adult Risk Taking, Proceedings of the National Academy of Sciences, 116(13), 6019-6024.

Lejarraga, T., Woike, J. K., & Hertwig, R. (2019). Experiences and Descriptions of Financial Uncertainty. Are They Equivalent? In R. Hertwig, T. J. Pleskac, T. Pachur, & The Center for Adaptive Rationality, Taming uncertainty. Cambridge, MA: MIT Press.

Hertwig, R., Pleskac, T. J., Pachur, T., & ARC Research Group (2019). Taming Uncertainty. MIT Press.

More information


Office Hours

Lecturer Tutorial Times
Start Date End Date Day Start Time End Time Location
12/09/2019 20/12/2019 Thursday 12.30 13.30 Mediante cita por Aula Digital (Arxiduc, despacho 9)

Teaching, 5 previous years

Subject Degree
11320 - Business Organization and Strategy
  • Master's in Agronomic Engineering 2016-17
  • Master's in Industrial Engineering 2016-17
11322 - Human Resource Management
  • Master's in Industrial Engineering 2016-17
20505 - Organisational Design and Human Resources
  • Degree in Tourism2016-17, 2017-18, 2018-19
  • Double Degree in Economics and Tourism 2016-17, 2017-18, 2018-19
20531 - Final Degree Project
  • Degree in Tourism2016-17, 2017-18, 2018-19


Research groups

Group Membership type
Decision Science Main researcher
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