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| Registros recuperados: 11 | |
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| Musshoff, Oliver; Odening, Martin; Xu, Wei. |
| Es ist seit langem bekannt, dass das Wetter den Hauptunsicherheitsfaktor in der pflanzlichen Produktion darstellt. Seit einiger Zeit wird der Einsatz von Wetterderivaten zur Absicherung gegen wetterbedingte Ertragsschwankungen diskutiert. In diesem Beitrag wird am Beispiel ei-nes getreideproduzierenden Betriebes in Brandenburg unter Verwendung von realen Ertrags- und Wetterdaten mit Hilfe einer stochastischen Simulation die risikomindernde Wirkung quan-tifiziert, die durch den Einsatz von Niederschlagsoptionen erzielt werden kann. Dabei wird die Hedging-Effektivität durch das Kontraktdesign (Index, Strike-Preis, Tick-Size) gesteuert. Das Basisrisiko der Produktion und das geografische Basisrisiko verbleiben jedoch in jedem Fall beim Landwirt. Ziel ist es,... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2006 |
URL: http://purl.umn.edu/14947 |
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| Musshoff, Oliver; Odening, Martin; Xu, Wei. |
| In this article we price a precipitation option based on empirical weather data from Germany using different pricing methods, among them Burn Analysis, Index Value Simulation and Daily Simulation. For that purpose we develop a daily precipitation model. Moreover, a de-correlation analysis is proposed to assess the spatial basis risk that is inherent to rainfall derivatives. The models are applied to precipitation data in Brandenburg, Germany. Based on simplifying assumptions of the production function, we quantify and compare the risk exposure of grain producers with and without rainfall insurance. It turns out that a considerable risk remains with producers who are remotely located from the weather station. Another finding is that significant differences... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Risk and Uncertainty. |
| Ano: 2006 |
URL: http://purl.umn.edu/21050 |
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| Xu, Wei; Filler, Gunther; Odening, Martin; Okhrin, Ostap. |
| Systemic weather risk is a major obstacle for the formation of private (nonsubsidized) crop insurance. This paper explores the possibility of spatial diversification of insurance by estimating the joint occurrence of unfavorable weather conditions in different locations. For that purpose copula methods are employed that allow an adequate description of stochastic dependencies between multivariate random variables. The estimation procedure is applied to weather data in Germany. Our results indicate that indemnity payments based on temperature as well as on cumulative rainfall show strong stochastic dependence even at a national scale. Thus the possibility to reduce risk exposure by increasing the trading area of the insurance is limited. Irrespective of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Weather risk; Crop insurance; Copula; Risk and Uncertainty; C14; Q19. |
| Ano: 2009 |
URL: http://purl.umn.edu/49131 |
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| Xu, Wei; Yuan, Jingheng. |
| This paper expounds the origin of "collective" in the process of collective land transfer, and analyzes the dislocation phenomenon of the role of collective in the process of collective land transfer as follows: deviation of the role under the conflict of identity; offside of the role under the limitation of democratic construction; omission of the role under the segmentation of interests. In order to protect me legitimate rights of farmers, we should make the role of collective to revert on the basis of township government, farmer and collective, so that the role of collective is restored under the management of government; the role of collective reverts under the supervision of farmers; the role of collective returns under its own strengthening of... |
| Tipo: Journal Article |
Palavras-chave: Land transfer; Role of collective; Dislocation; Regression; China; Agribusiness. |
| Ano: 2011 |
URL: http://purl.umn.edu/118289 |
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| Musshoff, Oliver; Odening, Martin; Xu, Wei. |
| The importance of weather as a production factor in agriculture is well established long time and a significant portion of yield fluctuations is caused by weather risks. Traditionally, farmers have tried to hedge against unfavorable weather using insurance, such as crop insurance. In recent years a new class of instruments, so called weather derivatives, have emerged. They allows to reduce weather based risks as well. Weather derivatives are financial market products such as forwards, futures, options and swaps, that have a weather component such as temperature or rainfall. Although weather derivatives have some advantages compared to traditional insurance, their trading volume is still rather small. One reason (among others) for why potential users... |
| Tipo: Journal Article |
Palavras-chave: Weather derivatives; Option pricing; Actuarial methods; Financial methods; Financial Economics; Risk and Uncertainty. |
| Ano: 2005 |
URL: http://purl.umn.edu/97216 |
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| Registros recuperados: 11 | |
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