Trotz des starken Rückgangs der Rohölpreise seit dem Herbst 2008 ist das Preisniveau mit gegenwärtig rund 60 US-Dollar pro Fass immer noch deutlich höher als im langfristigen Durchschnitt. Die Marktmacht der Organisation erdölexportierender Länder (OPEC) ist nach wie vor sehr groß und...

This paper proposes a partial equilibrium model to describe the global crude oil market. Pricing on the global crude oil market is strongly influenced by price indices such as WTI (USA) and Brent (Northwest Europe). Adapting an approach for pool-based electricity markets, the model captures the...

Rhodes Grass crop is continuously cultivated in coastal area of Salalah and Batinah region of Sultanate of Oman and created a negative impact on agriculture production. The government authority stopped Rhodes grass cultivation in coastal area and encouraged farmers to develop new area at Najed....

Land-use changes have transformed tropical landscapes throughout the past decades dramatically. We describe here an ecologicaleconomic land-use change model to provide an integrated,exploratory tool to analyze how tropical land use and land-use change affect ecological and socio- conomic...

Land use and land use change are determined as much by economic and institutional drivers as they depend on bio-physical conditions. Future pathways of socio-economic and environmental systems can only be assessed with scenarios which describe possible future paths of development. For this...