Carmen Fillat-Castej—n; Francois, Joseph; Woerz, Julia - Stichting IIDE - 2008
The type of relationship between different modes of trading services across international borders is of great interest … abroad act as complements or substitutes in services. The most commonly used analytical tool in the empirical analysis of … the gravity model to services and to commercial presence, using a composite demand model with offers testable hypothesis …