The purpose of this article is to make analysis of the concession projects in the Water Supply and Sanitation Sector registered and monitored by the World Bank in low-income and high-income countries in order to be able to disclose the composition and structure of concessions by regions of the world. The research study covers the period from 1991 to 2016. It does not cover the composi... https://fitnessgravesyardes.shop/product-category/transport-wheel/