| 来源类型 | Working papers |
| 规范类型 | 论文 |
| DOI | 10.3929/ethz-a-010590640 |
| Preservation of agricultural soils with endogenous stochastic degradation | |
| Bretschger, Lucas; Vinogradova, Alexandra | |
| 发表日期 | 2016-02 |
| 出版者 | ETH Zurich, Center of Economic Research (CER-ETH) |
| 出版年 | 2016 |
| 语种 | 英语 |
| 摘要 | Soils are often subject to environmental shocks which are caused by negative externalities linked to overexploitation. We present a stochastic model of a dynamic agricultural economy where natural disasters are sizeable, multiple, and random. Expansion of agricultural activities raises effective soil units (an index of quality and quantity) but contributes to an aggregate loss of soil-protective ecosystem services, which increases the extent of soil degradation at the time of a shock. We provide closed-form analytical solutions and show that optimal development is characterized by a constant growth rateof effective soil units and crop consumption until an environmental shock arrives causing both variables to jump downwards. Optimal policy consists of spending a constant fraction of output on soil preservation. This fraction is an increasing function of the shocks arrival rate, degradation intensity of agricultural practices, and the damage intensity of environmental impact. Implications for the optimal propensity to save are also discussed. An extension of the model provides a solution for the optimal preservation policy when both the hazard rate and damages are endogenous. |
| 主题 | Soil conservation ; Stochastic degradation ; Agriculture ; Environment ; Uncertainty ; Natural disasters |
| URL | https://www.research-collection.ethz.ch/handle/20.500.11850/110950 |
| 来源智库 | Centre for Energy Policy and Economics (Switzerland) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/266756 |
| 推荐引用方式 GB/T 7714 | Bretschger, Lucas,Vinogradova, Alexandra. Preservation of agricultural soils with endogenous stochastic degradation. 2016. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| eth-48648-01.pdf（1351KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
| eth-48648-01.jpg（3KB） | 智库出版物 | 限制开放 | CC BY-NC-SA |  浏览 | ||
| 文件名： | eth-48648-01.jpg |
| 格式： | JPEG |
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