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Mobile automotive cooperative services (MACS) : systematic development of personalizable interactive mobile automotive services
Hoffmann, Holger; Leimeister, Jan Marco; Kremar, Helmut - In: Global mobile commerce : strategies, implementation, …, (pp. 199-214). 2008
Persistent link: https://www.econbiz.de/10003555698
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Towards automotive service engineering : a design framework and a process model for developing mobile services in automobiles
Hoffmann, Holger; Leimeister, Jan Marco - In: International journal of electronic business 9 (2011) 4, pp. 320-349
Persistent link: https://www.econbiz.de/10009405060
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Impact of diversification on technical efficiency of organic farming in Switzerland, Austria and Southern Germany
Lakner, Sebastian; Kirchweger, Stefan; Hoop, Daniel; … - 2015
The paper investigates the impact of subsidies and of para-agriculture on the technical efficiency of organic farms in Switzerland, Austria and Southern Germany. The data-set consists of bookkeeping data with 1,704 observations in the years 2003 to 2005. Technical efficiency is modelled using a...
Persistent link: https://www.econbiz.de/10011348215
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Rainfall or Price Variability: What Determines Rangeland Management Decisions? A Simulation-Optimization Approach to South African Savannas
Borner, Jan; Higgins, Steven Ian; Kantelhardt, Jochen; … - 2006
Savannas cover the greater part of Africa and Australia and almost half of South America and contribute to the livelihoods of more than 350 million people. With the intensification of land use during the second half of the 20th century, savannas have become increasingly degraded through bush...
Persistent link: https://www.econbiz.de/10009442519
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Rainfall or price variability : what determines rangeland management decisions? ; a simulation-optimization approach to South African savannas
Börner, Jan; Higgins, Steven I.; Kantelhardt, Jochen; … - In: Agricultural economics : the journal of the … 37 (2007) 2/3, pp. 189-200
Persistent link: https://www.econbiz.de/10003616087
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Impact of diversification on technical efficiency of organic farming in Switzerland, Austria and Southern Germany
Lakner, Sebastian; Kirchweger, Stefan; Hoop, Daniel; … - 2015
The paper investigates the impact of subsidies and of para-agriculture on the technical efficiency of organic farms in Switzerland, Austria and Southern Germany. The data-set consists of bookkeeping data with 1,704 observations in the years 2003 to 2005. Technical efficiency is modelled using a...
Persistent link: https://www.econbiz.de/10011346671
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Diversifizierung versus Spezialisierung in der Agrar- und Ernährungswirtschaft : Beiträge der 21. ÖGA-Jahrestagung an der Europäischen Akademie Bozen (EURAC) vom 4. bis 6. Oktober...
Hambrusch, Josef (ed.); Hoffmann, Christian (ed.);  … - 2012 - 1. Aufl.
Persistent link: https://www.econbiz.de/10009693771
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Diversifizierung versus Spezialisierung in der Agrar- und Ernährungswirtschaft : Beiträge der 21. ÖGA-Jahrestagung an der Europäischen Akademie Bozen (EURAC) vom 4. bis 6. Oktober...
Hambrusch, Josef (ed.); Hoffmann, Christian (ed.);  … - 2012 - 1. Aufl.
Persistent link: https://www.econbiz.de/10009693772
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Approximating optimal numerical solutions to bio-economic systems : how useful is simulation-optimization?
Börner, Jan; Higgins, Steven I.; Scheiter, Simon; … - In: Quarterly journal of international agriculture 52 (2013) 3, pp. 179-198
Persistent link: https://www.econbiz.de/10010202250
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Ökosystemdienstleistungen und Landwirtschaft : Herausforderungen und Konsequenzen für Forschung und Praxis ; Beiträge der 22. ÖGA-Jahrestagung an der Universität für Bodenkultur Wi...
Eder, Michael (ed.); Kantelhardt, Jochen (ed.);  … - 2013 - 1. Aufl.
Persistent link: https://www.econbiz.de/10010235099