# Cash vs. vouchers vs. gifts in web surveys of a mature panel study––Main effects in a long-term incentives experiment across three panel waves

> Research article (Social Science Research, 2019) · cited 43× · AI/ML

**Wikidata**: [openalex:W2917327961](https://www.wikidata.org/wiki/openalex:W2917327961)  
**Source**: https://4ort.xyz/entity/cash-vs-vouchers-vs-gifts-in-web-surveys-of-a-mature-panel-studymain-effects-in-a-long-term-incentives-experiment-across