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Bush encroachment control and risk management in semi-arid rangelands
Lukomska, Natalia; Quaas, Martin F.; Baumgärtner, Stefan - 2010
We study the role of bush encroachment control for a farmer's income and income risk in a stochastic ecological-economic model of grazing management in semi-arid rangelands. In particular, we study debushing as an instrument of risk management that complements the choice of an adaptive grazing...
Persistent link: https://www.econbiz.de/10008760545
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Sustainable Use of Ecosystem Services Under Multiple Risks – A Survey of Commercial Cattle Farmers in Semi-Arid Rangelands in Namibia
Olbrich, Roland; Quaas, Martin F.; Baumgärtner, Stefan - 2010
farmers in semi-arid rangelands of Namibia, a system that features risks on various space and time scales. Here we present a …
Persistent link: https://www.econbiz.de/10014203826
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Sustainable use of ecosystem services under multiple risks : a survey of commercial cattle farmers in semi-arid rangelands in Namibia
Olbrich, Roland; Quaas, Martin F.; Baumgärtner, Stefan - 2009
farmers in semi-arid rangelands of Namibia, a system that features risks on various space and time scales. Here we present a …
Persistent link: https://www.econbiz.de/10003879608
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Pitfalls and potential of institutional change : rain-index insurance and the sustainability of rangeland management
Müller, Birgit; Quaas, Martin; Frank, Karin; … - 2009
; Namibia ; grazing management ; risk ; sustainability ; weather-based derivatives …
Persistent link: https://www.econbiz.de/10003921518
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Pitfalls and Potential of Institutional Change : Rain-Index Insurance and the Sustainability of Rangeland Management
Müller, Birgit; Quaas, Martin F.; Frank, Karin; … - 2011
Rain-index insurance is strongly advocated in many parts of the developing world to help farmers coping with climatic risk that prevails in (semi-)arid rangelands due to low and highly uncertain rainfall. We present a modeling analysis of how the availability of rain-index insurance affects the...
Persistent link: https://www.econbiz.de/10014201337
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Remote sensing of bush encroachment on commercial cattle farms in semi-arid rangelands in Namibia
Schröter, Matthias; Jakoby, Oliver; Olbrich, Roland; … - 2009
Bush encroachment is one of the most extensive changes in land cover in Namibia and an urgent problem for cattle … commercial cattle farms in central Namibia by employing remote sensing methods to distinguish between areas covered by bush and …
Persistent link: https://www.econbiz.de/10003872329
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Characterizing commercial cattle farms in Namibia : risk, management and sustainability
Olbrich, Roland; Quaas, Martin F.; Baumgärtner, Stefan - 2012
Commercial cattle farming in Namibia, a prime example of livestock farming in semi-arid rangelands, is subject to a …Commercial cattle farming in Namibia, a prime example of livestock farming in semi-arid rangelands, is subject to a … characterization of this system in respect to risk, management and sustainability. -- cattle farming ; semi-arid rangelands ; Namibia …
Persistent link: https://www.econbiz.de/10009583163
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Characterizing Commercial Cattle Farms in Namibia : Risk, Management and Sustainability
Olbrich, Roland; Quaas, Martin F.; Baumgärtner, Stefan - 2014
Commercial cattle farming in semi-arid regions is subject to high rainfall risk. At the same time, it is prone to rangeland degradation. Theoretical works suggest that rainfall risk management by means of financial instruments may stabilize farming-derived income over the short-term, but...
Persistent link: https://www.econbiz.de/10014166060
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Optimal grazing management rules in semi-arid rangelands with uncertain rainfall
Quaas, Martin F.; Baumgärtner, Stefan - 2011
We study optimal adaptive grazing management under uncertain rainfall in a discrete-time model. As in each year actual rainfall can be observed during the short rainy season, and grazing management can be adapted accordingly for the growing season, the closed-loop solution of the stochastic...
Persistent link: https://www.econbiz.de/10010281758
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Risk preferences under heterogeneous environmental risk
Olbrich, Roland; Quaas, Martin F.; Haensler, Andreas; … - 2011
We study risk preferences and their determinants for commercial cattle farmers in Namibia who are subject to high …We study risk preferences and their determinants for commercial cattle farmers in Namibia who are subject to high and …
Persistent link: https://www.econbiz.de/10009259888