This study uses a newly collected data set on Haiti (where data are very limited) to assess how individuals are selected into the public vs. private sectors and to estimate public-private sector wage differentials. The central question is whether or not public servants are earning a rent. The estimation procedure is an extension of Heckman's (1979) sample selection technique to the case where two selection rules generate the sample. The procedure first estimates, by bivariate probit analysis, the probability of employment in the public or private sector and then for those in the public sector, the probability of employment in the state-owned enterprises (SOEs) vs. public administration. Wage functions are then estimated for all three sectors, using the inverse Mills' ratios from reduced form probits. Selectivity bias is found to exist in one sector — SOEs. Correction for this bias in the wage equations lowers the wage differentials between the SOE and the private sector and the SOE and public administration, as is clearly demonstrated by the Oaxaca decomposition of these estimated mean differentials. Nevertheless, the corrected findings still indicate that the public sector (especially the SOEs) earn a sizable rent.