Maximiano, S., Sloof, R. and Sonnemans, J. (2007). Gift exchange in a multi-worker firm Economic Journal, 117(522):1025--1050.
Kole, E., Koedijk, C.(. and Verbeek, M. (2007). Selecting copulas for risk management Journal of Banking and Finance, 31(8):2405--2423.
Verhoef, E. (2007). Second-best Road Pricing through Highway Franchising Journal of Urban Economics, 62(2):337--361.
