This paper attempts to distinguish and estimate the direct and indirect effects of infrastructure on firm productivity … kinds of infrastructure - road, telecommunication servers, and cable - are found to directly promote firm productivity; (2 …. The latter arises from the infrastructure-agglomeration link and has been largely overlooked in the literature on …

The article summarises the essence of airport infrastructure and explores the roles of production airport … infrastructure in the world air transport system. It is noted that airport infrastructure is a complex dynamic subsystem of global … production infrastructure of the world economy and is aimed at providing competitive air transportation services. It is …