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Dynamic Economic Analysis on Invasive Species Management : Some Policy Implications of Catchability
https://iuj.repo.nii.ac.jp/records/389
https://iuj.repo.nii.ac.jp/records/389a3bf2053-74ee-4df1-8926-19f34f0dbcc5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
EMS_2006_16 (442.4 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-12-01 | |||||
| タイトル | ||||||
| タイトル | Dynamic Economic Analysis on Invasive Species Management : Some Policy Implications of Catchability | |||||
| タイトル | ||||||
| タイトル | Dynamic Economic Analysis on Invasive Species Management : Some Policy Implications of Catchability | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | bioeconomic model | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | catchability | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | eradication | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | invasive species management | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | dynamic programming | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | bioeconomic model | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | catchability | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | eradication | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | invasive species management | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | dynamic programming | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
小谷, 浩示
× 小谷, 浩示× 柿中, 真× Matsuda, Hiroyuki× Kotani, Koji× Kakinaka, Makoto× Matsuda, Hiroyuki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The problems of controlling invasive species have been emerging as a global issue. In response to these threats, some governmental programs have been proposed for supporting eradication. This article challenges this view by studying the optimal strategies of controlling invasive species in a simple dynamic model. The analysis mainly focuses on deriving policy implications of catchability in a situation where a series of controlling actions incurs operational costs that derive from the fact that catchability depends on the current stock size of invasive species. We analytically demonstrate that the optimal policy sequence can drastically change, depending on the sensitivity of catchability in response to a change in the stock size, as well as on the initial stock. If the sensitivity of catchability is sufficiently high, the constant escapement policy with some interior target level is optimal. In contrast, if the sensitivity of catchability is sufficiently low, there could exist a threshold of the initial stock which differentiates the optimal policy between immediate eradication and giving-up without any control. In the intermediate range, immediate eradication, giving-up without any control, or more complex policies might be optimal. Numerical analysis is employed to present economic intuitions and insights in both analytically tractable and intractable cases. | |||||
| 書誌情報 |
en : Economics & Management Series 発行日 2006-12-01 |
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