In this article, a vector autoregressive model is applied to the two main Portuguese cable television operators in order to obtain a dynamic analysis of the interactivity established between the supply and demand of network services. The results reveal the existence of two driving forces. On the...

Using quantile regressions, this paper examines the possibility of significant nonlinear relationships between the profitability of Portuguese service small- and medium-sized enterprises (SMEs) and its specific determinants. The results lead to the conclusion that there is a significant...

Nowadays of increasing functioning of network competitors, the Portuguese Small and Medium Enterprises (SME) of the Textile and Clothing Industry are facing new digital challenges. In order to strengthen their market power and reduce their dependence on foreign subcontractors, they need to...

This paper aims at the comparison between Cournot and Stackelberg pricings for a durable good, assuming time as a continuous variable. It concludes that the Cournot's strategic conduct is better for the duopoly producers than the Stackelberg's leader. This conclusion, however, does not prevail...

Neste artigo é efectuada uma caracterização das transformações operadas no Sector da Banca em Portugal, mediante a aplicação de diferentes modelos de negócio, que contam com a incorporação de tecnologias de informação e comunicação. A Internet, enquanto canal de distribuição...

This paper aims to make a public statement about the strategy implemented by Microsoft in order to reinforce its market power across the networked users of Windows Operative System, and Xbox Games Console. It is presented an economic view that supports the anticipating (not predatory) position...

Globalization has a concrete territorial expression, with remaining regional asymmetries. Authors in growth and development are far away to achieve consensus about the underpinning reasons of heterogeneity in regional performance. This constitutes an important regional policy issue. This paper...

Neste artigo, é efectuada uma revisão acerca das medidas de integração vertical, e dos principais estudos empíricos que versam a relação entre integração vertical e rentabilidade. É ainda proposto um modelo cujo objectivo é estudar os efeitos da integração vertical de actividades...

To investigate whether there is a similar relationship between R&D intensity and growth in high-tech and non-high-tech small and medium-sized enterprises (SMEs), we examine two samples of SMEs in manufacturing industries, applying the two-step estimation method. Our findings are that R&D...