John W. Tukey's contributions to multiple comparisons

John W

We use a unique firm-level panel data set of multinational parents and their foreign affiliates to analyze whether profits are shared across borders within multinational firms. Using both fixed-effects and generalized method-of-moments estimators, affiliate wage levels are estimated to respond to both affiliate and parent profitability. The elasticity of affiliate wages to parent profits per wo...

John W . Rudnicki

W. Stephen Wilson’s Contributions to Homotopy Theory

This paper is a survey of Steve’s work on BP and periodic cohomology theories. It was presented as a talk given in March 2007 at a conference celebrating Steve’s 60th birthday. 1. Cohomology of Ω-spectra and Hopf rings Steve Wilson’s thesis, directed in 1972 by Frank Peterson, started unstable BP theory as we know it. Part 1 of his thesis appeared as [13], where he shows that the spaces in the ...

The Late Mr. John W. Davies

Social Comparisons to Motivate Contributions to an Online Community

It is increasingly common for online communities to rely on members rather than editors to contribute and moderate content. To motivate members to perform these tasks, some sites display social comparisons, information designed to show members how they compare to others in the system. For example, Amazon, an online book store, shows a list of top reviewers. In this study, we investigate the eff...