Alexander K. Koch

Research Fellow

Aarhus University

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Research Interests

Alexander K. Koch is a Full Professor at the Department of Economics and Business Economics, Aarhus University.

Alexander received his doctoral degree from the University of Bonn in December 2003. He worked as a Lecturer at Royal Holloway, University of London until August 2008, when he joined Aarhus University. His research interests are in contract theory, behavioral economics, personnel economics, and experimental economics.


He joined IZA as a Research Affiliate in November 2003.

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IZA Publications

IZA Discussion Paper No. 16137
Nudging in Complex Environments
Alexander K. Koch, Dan Monster, Julia Nafziger
published as 'Spillover effects of reminder nudges in complex environments' in: PNAS, 2024; 121 (17), e23225491
IZA Discussion Paper No. 14142
Motivational Goal Bracketing with Non-rational Goals
Alexander K. Koch, Julia Nafziger
published in: Journal of Behavioral and Experimental Economics, 2021, 94, 101740
IZA Discussion Paper No. 13771
An Intensive, School-Based Learning Camp Targeting Academic and Non-Cognitive Skills Evaluated in a Randomized Trial
Charlotte Hvidman, Alexander K. Koch, Julia Nafziger, Søren Albeck Nielsen, Michael Rosholm
published in: Labour Economics, 2024, 88, 102535
IZA Discussion Paper No. 10955
Motivational Goal Bracketing: An Experiment
Alexander K. Koch, Julia Nafziger
published in: Journal of Economic Theory, 2020, 185, 104949
IZA Discussion Paper No. 9084
A Real-Effort Experiment on Gift Exchange with Temptation
Alexander K. Koch, Julia Nafziger
revised version published as 'Gift Exchange, Control, and Cyberloafing: A Real-Effort Experiment" in: Journal of Economic Behavior and Organization, 2016, 131,409 - 426
IZA Discussion Paper No. 8470
Behavioral Economics of Education
Alexander K. Koch, Julia Nafziger, Helena Skyt Nielsen
published in: Journal of Economic Behavior and Organization, 2015, 115, 3-17.
IZA Discussion Paper No. 5802
Goals and Psychological Accounting
Alexander K. Koch, Julia Nafziger
revised version published as 'Goals and Bracketing under Mental Accounting' in: Journal of Economic Theory, 2016, 162, 305–351.
IZA Discussion Paper No. 5298
What Do We Work For? An Anatomy of Pre- and Post-Tax Earnings Growth
Anders Frederiksen, Timothy J. Halliday, Alexander K. Koch
IZA Discussion Paper No. 5163
Within- and Cross-Firm Mobility and Earnings Growth
Anders Frederiksen, Timothy J. Halliday, Alexander K. Koch
published in: Industrial and Labor Relations Review, 2016, 69 (2), 320-353
IZA Discussion Paper No. 4624
Preferences and Beliefs in a Sequential Social Dilemma: A Within-Subjects Analysis
Mariana Blanco, Dirk Engelmann, Alexander K. Koch, Hans-Theo Normann
published in: Games and Economic Behavior, 2014, 87, 122–135.
IZA Discussion Paper No. 4471
Motivational Goal Bracketing
Alexander K. Koch, Julia Nafziger
published in: Journal of Behavioral and Experimental Economics, 2021, 94, 101740
IZA Discussion Paper No. 4049
Commitment to Self-Rewards
Alexander K. Koch, Julia Nafziger
published in European Economic Review, 2014, 68, 151-167.
IZA Discussion Paper No. 4039
Coordination under the Shadow of Career Concerns
Alexander K. Koch, Albrecht Morgenstern
published in: B.E. Journal of Theoretical Economics: Topics in Theoretical Economics, 2010, 10 (1), Article 10
IZA Discussion Paper No. 3893
Self-Regulation through Goal Setting
Alexander K. Koch, Julia Nafziger
published in: Scandinavian Journal of Economics, 2011, 113 (1), 212-227;
IZA Discussion Paper No. 3517
Belief Elicitation in Experiments: Is there a Hedging Problem?
Mariana Blanco, Dirk Engelmann, Alexander K. Koch, Hans-Theo Normann
published in: Experimental Economics, 2010, 13 (4), 412-438.
IZA Discussion Paper No. 2973
Job Assignments under Moral Hazard: The Peter Principle Revisited
Alexander K. Koch, Julia Nafziger
published in: Journal of Economics & Management Strategy, 2012, 21 (4), 1029-1059
IZA Discussion Paper No. 2463
Moral Hazard Contracts: Does One Size Fit All?
Alexander K. Koch, Eloic Peyrache
published in:Economics Letters, 2008, 100 (3), 399-401.
IZA Discussion Paper No. 1841
Tournaments, Individualized Contracts and Career Concerns
Alexander K. Koch, Eloic Peyrache
revised and extended version published as 'Aligning Ambition and Incentives' in: Journal of Law, Economics, and Organization , 2011, 27(1).
IZA Discussion Paper No. 1703
Giving in Dictator Games: Regard for Others or Regard by Others?
Alexander K. Koch, Hans-Theo Normann
published in: Southern Economic Journal, 2008, 75 (1), 223-231. revised working paper version
IZA Discussion Paper No. 1661
From Team Spirit to Jealousy: The Pitfalls of Too Much Transparency
Alexander K. Koch, Albrecht Morgenstern
substantially revised version available as 'Coordination under the Shadow of Career Concerns', IZA DP No. 4039
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