Scientific article 25. JAN 2017 The Efficiency Potential in Social Programs Accounting for Heterogeneity in Benefit-Cost Analysis Authors: Nicolai KristensenChristophe KolodziejczykIben BolvigKurt Houlberg Authors Nicolai KristensenChristophe KolodziejczykIben BolvigKurt Houlberg About this publication Published in Journal of Benefit-Cost Analysis