In just a few decades there will be insufficient energy to meet increased worldwide demand. The obvious solutions include scavenging remaining resources while seeking new energy sources. Determining the true potential and effects of new and unknown energy resources will take some time. Moreover, use of existing resources and discovery of new ones bring high economic and environmental costs that...

abstract in current study, an irrigation examination and acquisition of environmental water in kor-river fields, that is dominated from doroudzan dam to bakhtegan lake, was done by an integrated economy-environmental model. the model was considered by economic, hydrologic and agronomic components. in the economic component, an optimal harvesting of water was done using non-linear programming in...

The Urban Water Security Research Alliance (UWSRA) is a $50 million partnership over five years between the Queensland Government, CSIRO's Water for a Healthy Country Flagship, Griffith University and The University of Queensland. The Alliance has been formed to address SouthEast Queensland's emerging urban water issues with a focus on water security and recycling. The program will bring new re...

Abstract: Water resources carrying capacity (WRCC) is a recently proposed management concept, which aims to support sustainable socio-economic development in a region or basin. However, the calculation of future WRCC is not well considered in most studies, because water resources and the socio-economic development mode for one area or city in the future are quite uncertain. This paper focused o...

Aided by the longest economic expansion in U.S. history and other policy changes designed to make work pay, federal welfare reform legislation has spurred mothers to leave welfare at an unprecedented rate. The majority of mothers who left welfare are working, but most have jobs with low pay and limited benefits. This article discusses the relationship between economic resources and child well-b...

Regional economic activities require materials that can be extracted domestically or imported from other regions. Analysis of optimal patterns of combined economic development and materials use should be discussed in relation to trade and the environment. A model is presented that optimises long-term welfare of a 2-region economic system with trade in virgin and recycled materials as well as co...

Economists now recognize that, along with physical and human capital, environmental resources should be viewed as important economic assets, which can be called natural capital . Three recent debates have emerged over the role of natural capital in economic development. First, as many ecological services are unique, does the environment have an “essential” role in sustaining human welfare, and ...

The advanced technologies of the converged network are going to change the economic nature of the telecommunication network, especially the Internet. The Internet of today is an example of common resources and is suffering the tragedy of commons problem, i.e., it is overused. However, as the new network technologies of the converged network progress, the Internet will change from a common resou...

We specify a dynamic programming model that addresses the interplay among health, financial resources, and the labor market behavior of men late in their working lives. We model health as a latent variable, for which self reported disability status is an indicator, and allow self-reported disability to be endogenous to labor market behavior. We use panel data from the Health and Retirement Stud...