Die Etablierung des Westlichen Maiswurzelbohrers (Diabrotica virgifera virgifera) stellt eine zentrale Herausforderung für die österreichische Maisproduktion dar. Eine aktive Regulierung ist unerlässlich, um weitere Schäden zu verhindern bzw. zu reduzieren. Die Umsetzung bzw. Nicht-Umsetzung...

This paper develops a general equilibrium model to measure welfare effects of taxes for correcting environmental externalities caused by domestic trade, focusing on exter- nalities that arise through exports. Externalities from exports come from a number of sources. Domestically owned ships,...

"Some 10 million species of plants, animals, and microbes are thought to inhabit the earth, but so far only about 1.5 million of these have been identified. A mere 15 of the approximately 250,000 known plant species provide the world's human population with about 90 percent of its food.1 These...