Understanding the nature of cooperation variability
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DOI: 10.1016/j.jpubeco.2014.09.004
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- Toke Fosgaard & Lars Gårn Hansen & Erik Wengström, 2013. "Understanding the Nature of Cooperation Variability," IFRO Working Paper 2013/4, University of Copenhagen, Department of Food and Resource Economics.
- Fosgaard, Toke & Hansen , Lars Gårn & Wengström, Erik, 2013. "Understanding the Nature of Cooperation Variability," Working Papers 2013:6, Lund University, Department of Economics.
References listed on IDEAS
- Fischbacher, Urs & Gächter, Simon & Quercia, Simone, 2012.
"The behavioral validity of the strategy method in public good experiments,"
Journal of Economic Psychology, Elsevier, vol. 33(4), pages 897-913.
- Urs Fischbacher & Simon Gaechter, 2009. "The behavioral validity of the strategy method in public good experiments," Discussion Papers 2009-25, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- Thöni, Christian & Tyran, Jean-Robert & Wengström, Erik, 2012.
"Microfoundations of social capital,"
Journal of Public Economics, Elsevier, vol. 96(7-8), pages 635-643.
- Christian Thöni & Jean-Robert Tyran & Erik Wengström, 2009. "Microfoundations of Social Capital," Discussion Papers 09-24, University of Copenhagen. Department of Economics, revised Sep 2010.
- Christian Thöni & Jean-Robert Tyran & Erik Wengström, 2010. "Microfoundations of Social Capital," NRN working papers 2010-19, The Austrian Center for Labor Economics and the Analysis of the Welfare State, Johannes Kepler University Linz, Austria.
- Anna Dreber & Tore Ellingsen & Magnus Johannesson & David Rand, 2013.
"Do people care about social context? Framing effects in dictator games,"
Experimental Economics, Springer;Economic Science Association, vol. 16(3), pages 349-371, September.
- Dreber, Anna & Ellingsen, Tore & Johannesson, Magnus & Rand, David, 2011. "Do People Care about Social Context? Framing Effects in Dictator Games," SSE/EFI Working Paper Series in Economics and Finance 738, Stockholm School of Economics.
- Fischbacher, Urs & Gachter, Simon & Fehr, Ernst, 2001.
"Are people conditionally cooperative? Evidence from a public goods experiment,"
Economics Letters, Elsevier, vol. 71(3), pages 397-404, June.
- Urs Fischbacher & Simon Gaechter & Ernst Fehr, "undated". "Are People Conditionally Cooperative? Evidence from a Public Goods Experiment," IEW - Working Papers 016, Institute for Empirical Research in Economics - University of Zurich.
- Ellingsen, Tore & Johannesson, Magnus & Mollerstrom, Johanna & Munkhammar, Sara, 2012. "Social framing effects: Preferences or beliefs?," Games and Economic Behavior, Elsevier, vol. 76(1), pages 117-130.
- Battigalli, Pierpaolo & Dufwenberg, Martin, 2009.
"Dynamic psychological games,"
Journal of Economic Theory, Elsevier, vol. 144(1), pages 1-35, January.
- Pierpaolo Battigalli & Martin Dufwenberg, 2005. "Dynamic Psychological Games," Levine's Bibliography 784828000000000046, UCLA Department of Economics.
- Pierpaolo Battigalli & Martin Dufwenberg, 2005. "Dynamic Psychological Games," Working Papers 287, IGIER (Innocenzo Gasparini Institute for Economic Research), Bocconi University.
- James Andreoni, 1995.
"Warm-Glow versus Cold-Prickle: The Effects of Positive and Negative Framing on Cooperation in Experiments,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 110(1), pages 1-21.
- James Andreoni, 1994. "Warm-Glow versus Cold-Prickle: The Effects of Positive and Negative Framing on Cooperation in Experiments," Experimental 9410002, University Library of Munich, Germany.
- James Andreoni, 1997. "Warm-glow versus cold-prickle: the effect of positive and negative framing on cooperation in experiments," Levine's Working Paper Archive 671, David K. Levine.
- Andreoni, J., 1994. "Warm-Glow Versus Cold-Prickle: The Effects of Positive and Negative Farming on Cooperation in Experiments," Working papers 9406, Wisconsin Madison - Social Systems.
- Sonnemans, Joep & Schram, Arthur & Offerman, Theo, 1998. "Public good provision and public bad prevention: The effect of framing," Journal of Economic Behavior & Organization, Elsevier, vol. 34(1), pages 143-161, January.
- Andreoni, James, 1995.
"Cooperation in Public-Goods Experiments: Kindness or Confusion?,"
American Economic Review, American Economic Association, vol. 85(4), pages 891-904, September.
- Andreoni, J., 1993. "Cooperation in Public Goods Experiments: Kindness or Confusion?," Working papers 9309, Wisconsin Madison - Social Systems.
- Cubitt, Robin P. & Drouvelis, Michalis & Gächter, Simon & Kabalin, Ruslan, 2011.
"Moral judgments in social dilemmas: How bad is free riding?,"
Journal of Public Economics, Elsevier, vol. 95(3), pages 253-264.
- Cubitt, Robin P. & Drouvelis, Michalis & Gächter, Simon & Kabalin, Ruslan, 2011. "Moral judgments in social dilemmas: How bad is free riding?," Journal of Public Economics, Elsevier, vol. 95(3-4), pages 253-264, April.
- Robin Cubitt & Michalis Drouvelis & Simon Gachter & Ruslan Kabalin, "undated". "Moral Judgments in Social Dilemmas: How Bad is Free Riding?," Discussion Papers 09/20, Department of Economics, University of York.
- Robin P. Cubitt & Michalis Drouvelis & Simon Gaechter & Ruslan Kabalin, 2010. "Moral Judgments in Social Dilemmas: How Bad is Free Riding?," CESifo Working Paper Series 3230, CESifo.
- Robin Cubitt & Michalis Drouvelis & Simon Gaechter & Ruslan Kabalin, 2009. "Moral Judgments in Social Dilemmas: How Bad is Free Riding?," Discussion Papers 2009-15, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- Robin P. Cubitt & Michalis Drouvelis & Simon Gaechter & Ruslan Kabalin, 2010. "Moral Judgments in Social Dilemmas: How Bad is Free Riding?," Discussion Papers 2010-18, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- Goerg, Sebastian J. & Walkowitz, Gari, 2010.
"On the prevalence of framing effects across subject-pools in a two-person cooperation game,"
Journal of Economic Psychology, Elsevier, vol. 31(6), pages 849-859, December.
- Sebastian J. Goerg & Gari Walkowitz, 2010. "On the Prevalence of Framing Effects Across Subject-Pools in a Two- Person Cooperation Game," Discussion Paper Series of the Max Planck Institute for Research on Collective Goods 2010_28, Max Planck Institute for Research on Collective Goods.
- Urs Fischbacher & Simon Gachter, 2010.
"Social Preferences, Beliefs, and the Dynamics of Free Riding in Public Goods Experiments,"
American Economic Review, American Economic Association, vol. 100(1), pages 541-556, March.
- Urs Fischbacher & Simon Gaechter, 2008. "Social Preferences, Beliefs, and the Dynamics of Free Riding in Public Good Experiments," CESifo Working Paper Series 2491, CESifo.
- Urs Fischbacher & Simon Gaechter, 2009. "Social Preferences, Beliefs, and the Dynamics of Free Riding in Public Good Experiments," Discussion Papers 2009-04, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- Daniel Houser & Robert Kurzban, 2002. "Revisiting Kindness and Confusion in Public Goods Experiments," American Economic Review, American Economic Association, vol. 92(4), pages 1062-1069, September.
- Dufwenberg, Martin & Gächter, Simon & Hennig-Schmidt, Heike, 2011.
"The framing of games and the psychology of play,"
Games and Economic Behavior, Elsevier, vol. 73(2), pages 459-478.
- Dufwenberg, Martin & Gächter, Simon & Henning-Schmidt, Heike, 2008. "The Framing of Games and the Psychology of Play," Bonn Econ Discussion Papers 15/2008, University of Bonn, Bonn Graduate School of Economics (BGSE).
- Dufwenberg, Martin & Gächter, Simon & Hennig-Schmidt, Heike, 2010. "The Framing of Games and the Psychology of Play," Bonn Econ Discussion Papers 15/2010, University of Bonn, Bonn Graduate School of Economics (BGSE).
- Martin Dufwenberg & Simon Gaechter & Heike Hennig-Schmidt, 2010. "The Framing of Games and the Psychology of Play," Discussion Papers 2010-16, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- Koszegi, Botond & Rabin, Matthew, 2008. "Choices, situations, and happiness," Journal of Public Economics, Elsevier, vol. 92(8-9), pages 1821-1832, August.
- Steven D. Levitt & John A. List, 2007.
"What Do Laboratory Experiments Measuring Social Preferences Reveal About the Real World?,"
Journal of Economic Perspectives, American Economic Association, vol. 21(2), pages 153-174, Spring.
- Steven Levitt & John List, 2007. "What do Laboratory Experiments Measuring Social Preferences Reveal About the Real World," Artefactual Field Experiments 00480, The Field Experiments Website.
- Eileen Chou & Margaret McConnell & Rosemarie Nagel & Charles Plott, 2009.
"The control of game form recognition in experiments: understanding dominant strategy failures in a simple two person “guessing” game,"
Experimental Economics, Springer;Economic Science Association, vol. 12(2), pages 159-179, June.
- Chou, Eileen & McConnell, Margaret & Nagel, Rosemarie & Plott, Charles R., 2007. "The control of game form recognition in experiments: Understanding dominant strategy failures in a simple two person “Guessing” game," Working Papers 1274, California Institute of Technology, Division of the Humanities and Social Sciences.
- B. Douglas Bernheim, 2009.
"Behavioral Welfare Economics,"
Journal of the European Economic Association, MIT Press, vol. 7(2-3), pages 267-319, 04-05.
- B. Douglas Bernheim, 2008. "Behavioral Welfare Economics," NBER Working Papers 14622, National Bureau of Economic Research, Inc.
- Robin Cubitt & Michalis Drouvelis & Simon Gächter, 2011.
"Framing and free riding: emotional responses and punishment in social dilemma games,"
Experimental Economics, Springer;Economic Science Association, vol. 14(2), pages 254-272, May.
- Robin P. Cubitt & Michalis Drouvelis & Simon Gächter, 2008. "Framing and Free Riding: Emotional Responses and Punishment in Social Dilemma Games," Discussion Papers 2008-02, The Centre for Decision Research and Experimental Economics, School of Economics, University of Nottingham.
- McCusker, Christopher & Carnevale, Peter J., 1995. "Framing in Resource Dilemmas: Loss Aversion and the Moderating Effects of Sanctions," Organizational Behavior and Human Decision Processes, Elsevier, vol. 61(2), pages 190-201, February.
- B. Douglas Bernheim & Antonio Rangel, 2009.
"Beyond Revealed Preference: Choice-Theoretic Foundations for Behavioral Welfare Economics,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 124(1), pages 51-104.
- Douglas Bernheim & Antonio Rangel, 2007. "Beyond Revealed Preference Choice Theoretic Foundations for Behavioral Welfare Economics," Discussion Papers 07-031, Stanford Institute for Economic Policy Research.
- B. Douglas Bernheim & Antonio Rangel, 2008. "Beyond Revealed Preference: Choice Theoretic Foundations for Behavioral Welfare Economics," NBER Working Papers 13737, National Bureau of Economic Research, Inc.
- Park, Eun-Soo, 2000. "Warm-glow versus cold-prickle: a further experimental study of framing effects on free-riding," Journal of Economic Behavior & Organization, Elsevier, vol. 43(4), pages 405-421, December.
- Cappelen, Alexander W. & Nielsen, Ulrik H. & Sørensen, Erik Ø. & Tungodden, Bertil & Tyran, Jean-Robert, 2013.
"Give and take in dictator games,"
Economics Letters, Elsevier, vol. 118(2), pages 280-283.
- Cappelen, Alexander W. & Nielsen, Ulrik H. & Sørensen, Erik Ø. & Tungodden, Bertil & Tyran, Jean-Robert, 2012. "Give and Take in Dictator Games," Discussion Paper Series in Economics 14/2012, Norwegian School of Economics, Department of Economics.
- Yaw Nyarko & Andrew Schotter, 2002. "An Experimental Study of Belief Learning Using Elicited Beliefs," Econometrica, Econometric Society, vol. 70(3), pages 971-1005, May.
- Ferraro Paul J & Vossler Christian A, 2010. "The Source and Significance of Confusion in Public Goods Experiments," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 10(1), pages 1-42, July.
- Iturbe-Ormaetxe, Iñigo & Ponti, Giovanni & Tomás, Josefa & Ubeda, Luis, 2011.
"Framing effects in public goods: Prospect Theory and experimental evidence,"
Games and Economic Behavior, Elsevier, vol. 72(2), pages 439-447, June.
- Iñigo Iturbe Ormaetxe & Giovanni Ponti & Josefa Tomás & Luis Ubeda, 2008. "Framing Effects in Public Goods: Prospect Theory and Experimental Evidence," Working Papers. Serie AD 2008-15, Instituto Valenciano de Investigaciones Económicas, S.A. (Ivie).
- Colin F. Camerer & Richard H. Thaler, 1995. "Anomalies: Ultimatums, Dictators and Manners," Journal of Economic Perspectives, American Economic Association, vol. 9(2), pages 209-219, Spring.
- Timothy N. Cason & Charles R. Plott, 2014. "Misconceptions and Game Form Recognition: Challenges to Theories of Revealed Preference and Framing," Journal of Political Economy, University of Chicago Press, vol. 122(6), pages 1235-1270.
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More about this item
Keywords
Framing; Public goods; Internet experiment; Simulation; Heterogeneous sample;All these keywords.
JEL classification:
- D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
- D64 - Microeconomics - - Welfare Economics - - - Altruism; Philanthropy; Intergenerational Transfers
- H41 - Public Economics - - Publicly Provided Goods - - - Public Goods
- C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
- C93 - Mathematical and Quantitative Methods - - Design of Experiments - - - Field Experiments
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