Most renewable natural resources exhibit marked demographic and environmental stochasticities, which are exarcebated in management decisions by the uncertainty regarding the choice of an appropriate model to describe system dynamics. Moreover, demand and supply analysis often indicates the...

Since surface water flows are often stochastic, there is a role for water reservoirs in protecting users against uncertainty. We assume uncertainty regarding the probability distribution for the stochastic variable. Thus the decision allows for a range of approximate models that could be true,...

In many areas where water is not abundant, water pricing schedules contain significant nonlinearities. Existing pricing literature establishes that efficient schedules will depend on demand and supply characteristics. However, most empirical studies show that actual pricing schemes have little...

The tariffs applied in the Portuguese water industry are very complex, making their analysis difficult and hampering the objective of efficiency, acknowledged as an important tool in water management by Portuguese and European legislation. In this article we present the main criteria to be taken...

Economic literature on groundwater managementhas traditionally been split into two areas: there are papers that evaluate different schemes of dynamicaquifer management, considering that pumping costs vary with stock but ignoring water quality. On the other hand, there are papers that...

Models of economic growth are typically based on the use of one or more stocks of productive assets to create goods for utility-generating consumption. The roles played by man-made capital, natural capital, and human capital have been explored in the literature, and more recently the notion of...

Models of economic growth are typically based on the use of one or more stocks of productive assets to create goods for utility-generating consumption. The roles played by man-made capital, natural capital and human capital have been explored, often separately, in the literature, and more...

We use an endogenous growth model to contrast the socially optimal allocation of human capital with the decentralized solution, in a context where workers make the choices that determine social capital accumulation. As social capital is expected to increase productivity but is not traded in...