"Trade-offs in motivating volunteer effort: Experimental evidence on voluntary contributions to science"
Elizabeth Lyons & Laurina Zhang

The data for the analysis presented in this paper are provided in 2 data files:
1. 	zooniverse_output.csv:	
 - Data on contributor classifications provided by Zooniverse
 - Data on accuracy of contributor classifications based on matching with pastoralist and author classifications as described in paper
 - Unique contributor ID is user_id_anon
 
2.	zooniverse_survey
 - Survey responses based on optional survey for contributors in study
 - Treatment variable indicates which page survey was filled in from
 - Unique contributor ID is contributor_survey_id. This cannot be matched with contributor ID in output file.