Estimation Models for the adoption and use of information technology: internet-related technologies at firm level in the Portuguese and European context

Dissertação apresentada como requisito parcial para obtenção do grau de Doutor em Gestão de Informação

Nowadays it is consensual that information technology (IT) has a significant effect in the productivity of firms. However, this contribution can only be accomplishe if, and when, the new IT are widely spread and used. Understanding the determinants of adoption and use is a fundamental question, not only for economists, but also for society in general.(...)