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Transboundary water issues are not new; however, the Palestinian case represents a unique situation that is atypical from most transboundary water conflicts. This difference is marked most importantly by the issue of lack of domestic control over water resources within the Palestinian Territories. Since the Israeli occupation of the West Bank in 1967, Palestinian water policy has been dictated by Israeli control, which has resulted in an allocational shift in water distribution in the Palestinian Territories. In this article we review transboundary water practices and conflicts, water resources, allocation and consumption, water perception, and water reuse and conservation in the Palestinian West Bank in order to assess contemporary trends in water practices as well as recommend strategies for improving regional water management. Water use and perception are assessed based on an extensive unpublished research survey conducted by the Palestinian Hydrology Group in 2002. The final report from this survey focused on developing criteria and linking initial results from the survey to the design of a cost effective and equitable water delivery system that would provide all Palestinians with basic water needs. In this article, through a reassessment and statistical analysis of their data, we support the recommendations of this initial survey, including the implementation of an increasing block tariff system as a means of sustainably delivering water throughout the West Bank. However, any future water management cannot proceed in an effective manner unless some level of water control is relinquished by Israel.  相似文献   
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ABSTRACT The productivity effects of agglomeration economies are often treated as endogenous in empirical work due to the potential for reverse causality. The extent to which these relationships are actually simultaneously determined, however, remains largely unobserved. This paper estimates panel data vector autoregressions for different sectors of the economy to test for bidirectional causality between productivity and both localization and urbanization economies. The aim is to address some key questions that will help to identify the extent of the endogeneity problem. Can we actually observe bidirectionality in the data? Does it feature more for some industries than for others? Is it more prevalent for localization or urbanization economies? The results show that agglomeration economies are not strictly unidirectional and that higher levels of productivity can induce growth in the scale of local urban and industrial environments. The paper discusses the difficulties that these issues pose for the estimation of agglomeration economies.  相似文献   
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  总被引:3,自引:0,他引:3  
The sophistication of regional economic models has been demonstrated in numerous ways, most recently in the form of linking several modeling systems or in the expansion in the number of equations that can be manipulated successfully to produce impact analyses or forecasts. In this paper, an alternative perspective is employed. What do regional macro-level forecasts indicate about the process of structural change? A new methodology is illustrated that enables analysts to make forecasts of detailed structural change in the interindustry relations in an economy. Using a regional econometric input-output model developed for the Chicago metropolitan region, derived input-output tables are extracted for the period 1975–2016. These tables are then analyzed to determine the forecasted direction of structural changes for the region. The innovation illustrated here is based on a model that exploits the general equilibrium spirit of computable general equilibrium models through the adjustment of input coefficients to clear markets.  相似文献   
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The changing dynamics of regional and local labor markets during the last decades have led to an increasing labor market segmentation and socioeconomic polarization and to a rise of income inequalities at the regional, urban, and intraurban level. These problems call for effective social and local labor market policies. However, there is also a growing need for methods and techniques capable of efficiently estimating the likely impact of social and economic change at the local level. For example, the common methodologies for estimating the impacts of large firm openings or closures operate at the regional level. The best of these models disaggregate the region to the city (Armstrong 1993; Batey and Madden 1983). This paper demonstrates how spatial microsimulation modeling techniques can be used for local labor market analysis and policy evaluation to assess these impacts (and their multiplier effects) at the local level‐to measure the effects on individuals and their neighborhood services. First, we review these traditional macroscale and mesoscale regional modeling approaches to urban and regional policy analysis and we illustrate their merits and limitations. Then, we examine the potential of spatial microsimulation modeling to create a new framework for the formulation, analysis and evaluation of social and local labor market policies at the individual or household level. Outputs from a local labor market microsimulation model for Leeds are presented. We show how first it is possible to investigate the interdependencies between individual's or households labor market attributes at the microscale and to model their accessibilities to job opportunities in different localities. From this base we show how detailed what‐if microspatial analysis can be performed to estimate the impact of major changes in the local labor market through job losses or gains, including local multiplier effects.  相似文献   
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