%0 Journal Article %T A Method for Minimizing the Impact of Distributional Assumptions in Econometric Models for Duration Data %A Heckman, J. %A Singer, B. %A , %J Econometrica %V 52 %N 2 %P 271 %@ 0012-9682 %D 1984-03-01 %I JSTOR %~ DeepDyve