Contemporary urban areas are complex economic and transportation systems having a structured land use pattern. The utility value of land use is a measurement unit of the value of a specific land use zone in relation to the whole economic system. It is the effective economic output value of land use and it is defined according to concepts of accessibility level, economic level and spatial intera...

Model-based economic optimization of oil production suffers from high levels of uncertainty. The limited knowledge of reservoir model parameters and varying economic conditions are the main contributors of uncertainty. The negative impact of these uncertainties on production strategy increases and becomes profound with time. In this work, a multi-objective optimization problem is formulated whi...

Huang and Huang [International Journal of Systems Science, 39 (2008), 539-546] offered the algebraic approach to investigate the retailer’s replenishment policy under trade credit on the economic production quantity (EPQ) model. In this paper, we propose an arithmetic-geometric mean inequality method to simplify the algebraic method of completing perfect square established by Huang and Huang (2...

Peak oil” refers to the future decline in world production of crude oil and to the accompanying potentially calamitous effects. The majority of the literature on peak oil is non-economic and ignores price effects even when analyzing policies. Unfortunately, most economic models of depletable resources do not generate production peaks. I present four models which generate production peaks in equ...

In this paper, an EOQ inventory model is depleted not only by time varying demand but also by Weibull distribution deterioration, in which the inventory is permitted to start with shortages and end without shortages. A theory is developed to obtain the optimal solution of the problem; it is then illustrated with the aid of several numerical examples. Moreover, we also assume that the holding co...

River basins in many Eastern and Southern Mediterranean countries suffer from water scarcity due to rapid demographic and economic development, urbanization, industrialization, tourism, and inefficient agricultural activities, which is often the dominant water user. The Gediz River Basin along the Aegean coast of Turkey demonstrates the entire range of prototypical water management problems and...

In this paper, we develop a model of technology adoption and economic growth in which households optimally obtain either a concept-based, “general” education or a skill-specific, “vocational” education. General education is costly to obtain, but enables workers to operate new production technologies. Firms weigh the cost of adopting and operating new technologies against increased profits and o...

This paper deals with the problem of determining the economic order quantity for exponentially deteriorating items under the conditions of permissible delay in payments. The delay in payments depends on the quantity ordered. When the order quantity is less than at which the delay in payments is permitted, the payment for the product must be made immediately. Otherwise, the 0xed trade credit per...

An important element of resource management and conservation is an understanding of the tradeoffs between marketed products such as timber and measures of environmental quality such as biodiversity. In this paper, we develop an integrated economic – ecological spatial optimization model. The integrated model incorporates dynamic forest sector harvesting, oil and gas sector development, coarse f...

Urban Migrant Workers in China have been an important power to promote the urbanization in China and economic growth. Because the overall qualities of migrant workers are not high, and they are lacking of professional labor skills, most of those migrant workers are not sufficiently qualified for various industries development, and the high and new technology in widespread use and the optimizati...