Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 59, No. 3 (MAY 2010), pp. 381-404 (24 pages) Sample selection models attempt to correct for non-randomly selected data in ...
Many researchers have dealt with potential selectivity bias in developing country wage equations by employing Heckman's (1979) two-step method or related techniques, despite the potential for such ...
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