Jansson, Torbjörn; Heckelei, Thomas 2010 Estimation of parameters of constrained optimization models Book chapter DOI:10.1108/S1574-8715(2010)0000007004
Jansson, Torbjörn; Heckelei, Thomas 2009 A new estimator for trade costs and its small sample properties Research article (Peer reviewed) DOI:10.1016/j.econmod.2008.10.002