This article tries to calculate the total factor productivity (TFP) of the Brazilian supply chains and also the obsolescence of their capital between 1990 and 2009. We conclude two main aspects about our investigation: firstly, liquid obsolescence TFP have grown strongly after 1995, but not...

Neste texto apresento o modelo base da abordagem teórica denominada por New Macroeconomics aplicando-o à tendência secular, aos ciclos económicos e ao crescente endividamento de Portugal. É demonstrado que i) o endividamento crescente prejudica as exportações e favorece as importações e...

Portuguese Abstract: Este artigo é destinado a examinar a conduta das partes segundo as disposições da Convenção das Nações Unidas sobre compra e venda internacional de mercadorias (CISG). Será analizado o processo de celebração pelo Brasil da referida convenção, bem como as regras...

This article tries to calculate the total factor productivity (TFP) of the Brazilian supply chains and also the obsolescence of their capital between 1990 and 2009. We conclude two main aspects about our investigation: firstly, liquid obsolescence TFP have grown strongly after 1995, but not...

We study experimentally a standard four-player Hotelling game, with a uniform density of consumers and inelastic demand. The pure strategy Nash equilibrium configuration consists of two firms located at one quarter of the ``linear city'', and the other two at three quarters. We do not observe...

The Information and Communication Technologies (ICT) play a crucial role in the world today. Globalization as we know it and the emergence of so-called Information and Knowledge Society are the direct consequence of radical technological innovations that led to the development of the Internet...