This paper looks at the inclusion of excluded groups, notably the racial transformation of the South African university system. Both demand-side factors - are qualified black people hired as faculty? - and supply-side factors - are there enough qualified black people who can be hired as faculty?...

The literature on learning in unknown environments emphasises reinforcing on actions which produce positive results. But, in some cases, success requires shifting from a currently successful actions to others. We examine, experimentally and theoretically in a very simple framework, how...