Sutter, Matthias Max Planck Institute for Research on Collective Goods, Max Planck Society;
https://www.coll.mpg.de/pdf_dat/2020_10online.pdf (Any fulltext)
Stefan, M., Huber, J., Kirchler, M., Sutter, M., & Walzl, M. (2020). Monetary and Social Incentives in Multi-Tasking: The Ranking Substitution Effect.