Hoogerheide, L., Opschoor, A. and van Dijk, H.K. (2012). A class of adaptive importance sampling weighted EM algorithms for efficient and robust posterior and predictive simulation Journal of Econometrics, 171(2):101--120.
Behrens, C. and Pels, E. (2012). Intermodal competition in the London-Paris passenger market: High-speed rail and air transport Journal of Urban Economics, 71(3):278--288.