At the theoretical level, the establishment of a patent system has two objectives: to encourage firms to produce new knowledge and to disseminate information. However, economic practice has highlighted the dilemma between protection and dissemination. This paper discusses how to determine the...

The shadow economy exists in all countries (developed and developing). This sector, which in many countries escapes any measure, causes distortions in the formal economy. It is to reduce its effect on the economy that this study was initiated to identify its determinants and its size. For the...

Cet article est organisé de la façon suivante: dans un premier temps nous montrons que la référence à la notion de sélection de groupe n’est pas incohérente avec les autres éléments de la pensée hayékienne. Nous développons ensuite l’idée que les travaux récents en matière...