This analysis of the fishers’ compliance with regulations in Lake Victoria, Tanzania, gives support to the traditional economics-of-crime model and shows that the extension of the basic deterrence model can lead to a richer model with substantially higher explanatory power.
Las organizaciones comunales de abastecimiento de agua y saneamiento en Costa Rica
La efectividad de una política de descentralización depende de muchos factores y no puede ser concebida como una panacea para solventar los problemas de provisión de agua potable en todos los contextos.
One of the most pressing problems faced by the Tunisian farmers and authorities is the inexorable decline of the water table over the past twenty years due to the over-exploitation of the groundwater. This study is an attempt to find how this issue can be resolved through collective action.
This analysis of the fishers’ compliance with regulations in Lake Victoria, Tanzania, gives support to the traditional economics-of-crime model and shows that the extension of the basic deterrence model can lead to a richer model with substantially higher explanatory power.
Imbrasia Belina also known as the mopane worm, like other edible insects and caterpillars, is a vital source of protein to Southern African countries. The worms live and graze on mopane trees, which occupy agricultural land. With increasing commercialization of the worm, the management of the worm, which was hitherto organized as a common property resource, has degraded to a near open access.
This paper studies technical efficiency and skipper skill (and explores potential proxies), using Tanzanian fishery data for the two major species, Nile perch and dagaa. The relative level of efficiency is high in both fisheries, and several observable variables linked to skipper skill significantly explain the efficiency level. However, given the rapidly depleting fish stocks in Lake Victoria, increased efficiency at the aggregate level is only possible if fishing effort is limited.
Cooperative management and development of Africa’s international rivers holds real promise for greater sustainability and productivity of the continent’s increasingly scarce water resources and fragile environment. Moreover, the potential benefits of cooperative water resources management can serve as catalysts for broader regional cooperation, economic integration and development—and even conflict prevention. But riparians will pursue joint action only when they expect to receive greater benefits through cooperation than through unilateral action.
Since 1999 a multilateral effort termed the Nile Basin Initiative has been underway among the Nile riparians to explore opportunities for maximizing the benefits of the river's waters through cooperative development and management of the basin. However, to date there has been virtually no explicit discussion of the economic value of cooperative water resources development.
This paper examines the implications for Egypt and Sudan of the development of Blue Nile water resources by Ethiopia. The long-term development program produced between 1958 and 1963 by the Ethiopian government in collaboration with the US Bureau of Reclamation is summarized.
A linear programming model is used to examine the
effects on Egypt and Sudan of implementing this program. It is found
that water for agricultural use in Egypt and Sudan would actually
increase, though there would be some adverse consequences for Egypt.