> Are there? Yes. > Diversity defined how? Depends on the study. Usually gender or race. > Repeatable experiments or statistical analysis of groups of compa

> Are there? Yes. > Diversity defined how? Depends on the study. Usually gender or race. > Repeatable experiments or statistical analysis of groups of companies? Depends on the study. See my other comments in this thread. > It could be studied experimentally and so I am sure it has been. It has been. See the study into racially diverse juries making more accurate judgements. > The studies using statistical analysis to compare across companies are always weak and should be taken with a grain of salt. Everything sould be taken with salt because salt is awesome.