A stylized fact in the growing literature on public sector labor markets is that estimates of public sector union wage premia are significantly lower than estimates of private sector union wage premia. In this paper I investigate the hypothesis that this difference may in part be due to the...

Studies of public/private sector wage differentials typically assume that the govenment and union status of a worker are exogenous variables. Recently, some studies have relaxed this assumption slightly by allowing the union status to be endogenous. In this paper, we consider a more general...