Data, analysis code, original instructions and zTree codes for Gächter, Kaiser, Königstein: "Incentives crowd out voluntary cooperation: Evidence from gift-exchange experiments", Experimental Economics 28(1), 75-106, https://doi.org/10.1017/eec.2024.14
The README file contains more details.
All methods used to generate these data are described in the paper and its Online Appendix, which also includes instructions in English.
This work was supported by the European Research Council [grant numbers [ERC-AdG 295707 COOPERATION][2] and [ERC-AdG 101020453 PRINCIPLES\]][3] and the Economic and Social Research Council [grant number ES/K002201/1].
[1]: https://www.iza.org/publications/dp/16872/incentive-contracts-crowd-out-voluntary-cooperation-evidence-from-gift-exchange-experiments
[2]: https://www.nottingham.ac.uk/cedex/erc-project-cooperation/home.aspxhttp://
[3]: https://www.nottingham.ac.uk/cedex/erc-project-cooperation/home.aspx
