Nicht zuletzt aufgrund der weltweit stark zunehmenden Nachfrage nach landwirtschaftlichen Rohstoffen zur Biokraftstoffherstellung wird mit einem starken Anstieg der Getreide- und Ölsaatenpreise gerechnet. In diesem Beitrag wurden die Auswirkungen steigender Getreidepreise auf die boomende...

Replaced with revised version of paper 07/11/06.

A bioeconomic model of reservoir aquaculture in northern Vietnam is used toinvestigate the impacts of price and yield risk on the level, variability and skewness ofexpected net revenue and utility. Prices and yields are assumed to follow lognormaland beta distributions, respectively. Net revenue...

The extent of the benefits of improved river health remain uncertain. Quantifying these benefits is useful in prioritising policy investments. This study uses the Choice Modelling technique to estimate the value that households attach to attributes of improved river health. Data from a choice...

The paper presents an extended gravity equation application for the global trade with ethanol.The background and different attempts for a theoretical foundation of the standard approachare discussed. The econometric work takes regional integration schemes into account, as wellas the influence of...

Risk and reliability dominate water supply discussions in the arid western United States. In the past, water managers built additional storage to mitigate supply risk. The optimal, least expensive storage sites have now been taken, and there are strong, environmental objections to new...

Irrigated agriculture often leads to recharge to local and regional groundwater systems greater than what the systems can absorb, resulting in the development of shallow watertables causing salinity and waterlogging. Policy based on emissions trading offers one option for effective management of...

Spatial and temporal attributes of watersheds and associated market failures require institutional arrangements for coordinating use and management of natural resources. Effective collective action (CA) for watershed management has the potential to provide multiple economic and environmental...

The objective of this paper is to examine the role of the factors expected to influence the success potential of small holder irrigation projects as they apply in the South African context. The study was conducted in six smallholder ir rigation schemes in three provinces namely: Eastern Cape,...

Water management for irrigation requires suitable policy tools able to meet social objectives and private behaviour. The legal framework in the EU is today faced with the new water framework directive (60/2000), that sets up new criteria for water management, regulation and pricing. Among other...