Studies in agricultural science at Justus Liebig University Giessen, German university degree "Diplom" in 1983; PhD in 1988; habilitation in 2004 in the research area of agriculture and resource economy (habilitation thesis "Technikfolgen-Abschätzung im Bereich Landwirtschaft und Ernährung" (technology assessment in agriculture and nutrition); associate professor (Privatdozent) at Justus Liebig University Giessen, Faculty 09 - Agricultural Sciences, Nutritional Sciences and Environmental Management since 2007.

November 1990 to July 2003 member of scientific staff of TAB. Since May 2005 senior scientist at ITAS. Focus of scientific work:

• Bioeconomy
• Technology assessment in the area of green genetic engineering
• Sustainability in agriculture and nutrition
• Sustainable intensification of agricultural production and development pathways of agriculture
• Energy crops and resource competition
• Methodology of technology assessment

• Project leader of the MWK-project “Systems analysis on goals, visions, value chains and implementation steps of a bio-economy in Baden-Württemberg” (in the frame of social and ecological accompanying research on the research programme bioeconomy Baden-Württemberg)
• Project “The concept of bio-economy – Reflections on the theoretical background, goals, visions, and expectations”
• EU-Interreg-project “Biomasse OUI – Innovations for sustainable utilization of biomass in the Upper Rhine Region”

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