@article{publication-23317,
	author={Ambuehl, Sandro and Ockenfels, Axel and Stewart, Colin},
	doi={10.1162/rest_a_01268},
	issn={0034-6535},
	journal={The Review of Economics and Statistics},
	pages={Epub ahead of print-Epub ahead of print},
	publisher={MIT Press},
	title={Who opts in? Composition effects and disappointment from participation payments},
	year=2022,
}