This is the published version Ghosh, Arghya and Nabin, Munirul 2006, Sequential technology adoption with asymmetric firms, Journal of international trade and economic development, vol. 15, no. 2, pp. 157-172. Available from Deakin Research Online http://hdl.handle.net/10536/DRO/DU:30009091 Reproduced with the kind permission of the copyright owner Copyright: 2006, Taylor and Francis