Competition and moral behavior: A meta-analysis of forty-five crowd-sourced experimental designs.

Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it has been tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source of ambivalent empirical results on the same hypothesis is design heterogeneity-variation in true effect sizes across various reasonable experimental research protocols. To provide further evidence on whether competition affects moral behavior and to examine whether the generalizability of a single experimental study is jeopardized by design heterogeneity, we invited independent research teams to contribute experimental designs to a crowd-sourced project. In a large-scale online data collection, 18,123 experimental participants were randomly allocated to 45 randomly selected experimental designs out of 95 submitted designs. We find a small adverse effect of competition on moral behavior in a meta-analysis of the pooled data. The crowd-sourced design of our study allows for a clean identification and estimation of the variation in effect sizes above and beyond what could be expected due to sampling variance. We find substantial design heterogeneity-estimated to be about 1.6 times as large as the average standard error of effect size estimates of the 45 research designs-indicating that the informativeness and generalizability of results based on a single experimental design are limited. Drawing strong conclusions about the underlying hypotheses in the presence of substantive design heterogeneity requires moving toward much larger data collections on various experimental designs testing the same hypothesis.

Less is not more: 401(k) plan information and retirement planning choices.

This paper presents the results of a choice experiment that is designed to examine whether changing how plan information is presented affects planned retirement-savings behavior. The main hypothesis is that providing plan information in a more concise format with helpful recommendations, rather than providing lengthy and detailed information, will alter retirement-planning choices. The specific choices examined include: whether to enroll, how much to contribute, and how to structure (broadly) the asset allocation. The choice experiment is conducted on three different samples: (i) a Qualtrics panel of new employees, (ii) a Qualtrics panel of job seekers, and (iii) a sample of business-school students. Our results suggest that, controlling for demographic and other factors, our main hypothesis was not supported by the data in any of the samples. Thus, the data cast some doubt on the notion that simplifying and condensing the retirement-plan information presented to employees will result in vastly different retirement-planning choices.