Investimento privado em infraestrutura: evidências para países em desenvolvimento no setor de saneamento básico

Abstract

Investment in infrastructure is an essential factor for improving the quality of life of the population and, consequently, for the economic development of nations. In this context, the universalisation of water and sanitation services is of paramount importance, mainly due to its impact on public health. Taking as a basis the work of hammami et al. (2006) and Sharma (2012), this article develops a study on the determinants of the number of contracts, especially for the basic sanitation sector. To accomplish this purpose, in the empirical analysis we count estimators in the structure of panel data for developing countries with the time horizon of 2003- 2016, by analyzing the number of contracts in the sector with the models of Negative Binomial regression, Poisson and Zero Inflated negative binomial with corrected Vuong. The results show that the macroeconomic environment, foreign investment and the political environment are the main determinants in the formulation of new contracts in the sector of basic sanitation.