The seminal work by Baumol et al. (1982) has highlighted the importance of analyzing firms' costs structure. This allows to design proper policy measures and to understand the impacts of those policies in markets. The note presents an original method and an application for testing costs...

The seminal work by Baumol et al. (1982) has highlighted the importance of analyzing firms' costs structure. This allows to design proper policy measures and to understand the impacts of those policies in markets. The note presents an original method and an application for testing costs...

This paper aims to study the interaction between the control of corruption, investment and economic growth in the MENA region. Our empirical essay attempts to clarify the direct and indirect control of corruption on economic growth through investment in the period 1984-2012 in the MENA region...

The interest of this paper is to show that the action of public power in the management of public expenditure on health for the majority of MENA countries. Indeed, our empirical attempt tries to clarify the direct and indirect effects of the effectiveness of government economic development...