This paper develops two extensions of the dynamic model presented in Melitz (2003). The first extension consists in the introduction of technology choice between three alternative production technologies: L, M and H. L is assumed to be the same as Melitz’s single production technology, while M...

Beyond their key contribution to value chains in all sectors, services represent a centrally important source of economic and export diversification. This paper discusses how to promote trade in services as a channel for growth, employment, and diversification by assessing services trade costs...