K. Annan, Des milliards de promesses à tenir, 2005.

J. Andreoni, Impure Altruism and Donations to Public Goods: A Theory of Warm-Glow Giving, The Economic Journal, vol.100, issue.401, pp.464-477, 1990.
DOI : 10.2307/2234133

J. Andreoni and J. List, Charitable giving and fundraising special issue, Journal of Public Economics, vol.95, pp.5-6, 2011.

S. Bamberg, EFFECTS OF IMPLEMENTATION INTENTIONS ON THE ACTUAL PERFORMANCE OF NEW ENVIRONMENTALLY FRIENDLY BEHAVIOURS ??? RESULTS OF TWO FIELD EXPERIMENTS, Journal of Environmental Psychology, vol.22, issue.4, pp.399-411, 2002.
DOI : 10.1006/jevp.2002.0278

A. Breman, Give more tomorrow: Two field experiments on altruism and intertemporal choice, Journal of Public Economics, vol.95, issue.11-12, pp.95-1349, 2011.
DOI : 10.1016/j.jpubeco.2011.05.004

G. S. Becker, Human capital and the personal distribution of income, 1967.

S. Braver, Social Contracts and the Provision of Public Goods, in Social Dilemmas: Perspectives on Individuals and Groups, 1995.

H. Browne-wilkinson, Charitable Giving Promises, Institute of Philanthropy: http://www.thirdsector.co.uk/charitable-giving-promises-promises, p.617345, 2005.

G. Bryan, D. Karlan, and S. Nelson, Commitment Devices, Annual Review of Economics, vol.2, issue.1, pp.671-698, 2010.
DOI : 10.1146/annurev.economics.102308.124324

W. Buffett, My philanthropic pledge, CNNMoney, 2010.

G. Charness and M. Dufwenberg, Bare promises: An experiment, Economics Letters, vol.107, issue.2, pp.281-283, 2010.
DOI : 10.1016/j.econlet.2010.02.009

S. Cotterill and L. Richardson, Can pledging increase civic activity: A literature review on developing community pledgebanks, 2009.

S. Cotterill, P. John, and L. Richardson, The Impact of a Pledge Request and the Promise of Publicity: A Randomized Controlled Trial of Charitable Donations, Social Science Quarterly, vol.56, issue.3, pp.200-216, 2012.
DOI : 10.1111/j.1540-6237.2012.00896.x

E. L. Deci and R. M. Ryan, The "What" and "Why" of Goal Pursuits: Human Needs and the Self-Determination of Behavior, Psychological Inquiry, vol.4, issue.4, pp.227-268, 2000.
DOI : 10.1037//0278-6133.17.3.269

C. C. Eckel and P. J. Grossman, Altruism in Anonymous Dictator Games, Games and Economic Behavior, vol.16, issue.2, pp.181-191, 1996.
DOI : 10.1006/game.1996.0081

T. Ellingsen and M. Johannesson, Promises, Threats and Fairness*, The Economic Journal, vol.94, issue.2, pp.397-420, 2004.
DOI : 10.1006/jeth.2001.2803

M. A. Elliott and C. J. Armitage, Effects of Implementation Intentions on the Self-Reported Frequency of Drivers' Compliance With Speed Limits., Journal of Experimental Psychology: Applied, vol.12, issue.2, p.108, 2006.
DOI : 10.1037/1076-898X.12.2.108

E. Fehr and K. M. Schmidt, A Theory of Fairness, Competition, and Cooperation, The Quarterly Journal of Economics, vol.114, issue.3, pp.817-868, 1999.
DOI : 10.1162/003355399556151

J. M. Feldman and J. G. Lynch, Self-generated validity and other effects of measurement on belief, attitude, intention, and behavior., Journal of Applied Psychology, vol.73, issue.3, pp.421-435, 1988.
DOI : 10.1037/0021-9010.73.3.421

P. M. Gollwitzer, Implementation intentions: Strong effects of simple plans., American Psychologist, vol.54, issue.7, p.493, 1999.
DOI : 10.1037/0003-066X.54.7.493

P. M. Gollwitzer and P. Sheeran, Implementation Intentions and Goal Achievement: A Meta???analysis of Effects and Processes, Advances in Experimental Social Psychology, vol.38, pp.69-119, 2006.
DOI : 10.1016/S0065-2601(06)38002-1

A. Greenwald, C. G. Carnot, R. Beach, and B. Young, Increasing voting behavior by asking people if they expect to vote., Journal of Applied Psychology, vol.72, issue.2, pp.315-318, 1987.
DOI : 10.1037/0021-9010.72.2.315

C. Kellner, D. Reinstein, G. Riener, and M. Sanders, Giving and probability, Working Paper, The Center for Market and Public Organizations, 2015.

D. Krebs, Empathy and altruism., Journal of Personality and Social Psychology, vol.32, issue.6, pp.1134-1146, 1975.
DOI : 10.1037/0022-3514.32.6.1134

J. A. List, On the Interpretation of Giving in Dictator Games, Journal of Political Economy, vol.115, issue.3, pp.482-493, 2007.
DOI : 10.1086/519249

W. Liu and J. Aaker, The Happiness of Giving: The Time-Ask Effect, Journal of Consumer Research, vol.35, issue.3, pp.543-557, 2008.
DOI : 10.1086/588699

G. D. Lynne, Divided self models of the socioeconomic person: the metaeconomics approach, The Journal of Socio-Economics, vol.28, issue.3, pp.267-288, 1999.
DOI : 10.1016/S1053-5357(99)00017-7

J. W. Mayo and C. H. Tinsley, Warm glow and charitable giving: Why the wealthy do not give more to charity?, Journal of Economic Psychology, vol.30, issue.3, pp.490-499, 2009.
DOI : 10.1016/j.joep.2008.06.001

D. Mckenzie-mohr, New Ways to Promote Proenvironmental Behavior: Promoting Sustainable Behavior: An Introduction to Community-Based Social Marketing, Journal of Social Issues, vol.56, issue.3, pp.543-554, 2000.
DOI : 10.1111/0022-4537.00183

D. Mckenzie-mohr and W. Smith, Fostering Sustainable Behavior, 1999.
DOI : 10.4135/9781483349466.n1

T. Meyvis, A. Bennett, and D. M. Oppenheimer, Precommitment to charity. The science of giving: Experimental approaches to the study of charity, pp.35-48, 2011.

K. L. Milkman, T. Rogers, and M. H. Bazerman, I'll have the ice cream soon and the vegetables later: A study of online grocery purchases and order lead time, pp.17-35, 2010.

D. Prelec and G. Loewenstein, The Red and the Black: Mental Accounting of Savings and Debt, Marketing Science, vol.17, issue.1, pp.4-28, 1998.
DOI : 10.1287/mksc.17.1.4

D. G. Rand, J. D. Greene, and M. A. Nowak, Spontaneous giving and calculated greed, Nature, vol.320, issue.7416, pp.489-427, 2012.
DOI : 10.1038/nature11467

M. Sanders, Applying behavioural insights to charitable giving, Behavioral Insights Team, https:// www.gov.uk/ government, 2012.

R. J. Sheeder and G. D. Lynne, Empathy-Conditioned Conservation: "Walking in the Shoes of Others" as a Conservation Farmer, Land Economics, vol.87, issue.3, pp.433-452, 2011.
DOI : 10.3368/le.87.3.433

R. H. Thaler and S. Benartzi, Save More Tomorrow???: Using Behavioral Economics to Increase Employee Saving, Journal of Political Economy, vol.112, issue.S1, pp.164-187, 2004.
DOI : 10.1086/380085

Y. Trope and N. Liberman, Temporal construal., Psychological Review, vol.110, issue.3, p.403, 2003.
DOI : 10.1037/0033-295X.110.3.403

C. Vanberg, Why do people keep their promises? An experimental test of two explanations, Econometrica, vol.76, issue.6, pp.1467-1480, 2008.

K. Wertenbroch, Consumption Self-Control by Rationing Purchase Quantities of Virtue and Vice, Marketing Science, vol.17, issue.4, pp.317-337, 1998.
DOI : 10.1287/mksc.17.4.317