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This article develops a forestry model to obtain the optimal control strategy and optimal rotation length after a disease attacks in a perennial variety. Three cases are considered: a benchmark consisting of a disease-free field, an identical field with the disease present but no resistant variety with which to replant, and an identical field with the disease present and a resistant variety wit…
- Tahun Terbit
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Payment for environmental service contracts commonly require actions beyond adoption of a practice, such as undergoing specified enrollment procedures, granting consent to being monitored, and paying penalties for violations. These provisions are a bundle of attributes a landholder must accept with contract enrollment, leading to transaction costs in the contracting process. This article develo…
- Tahun Terbit
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Grapevine leafroll disease threatens the economic sustainability of the grape and wine industry in the United States and around the world. This viral disease reduces yield, delays fruit ripening, and affects wine quality. Although there is new information on the disease spatial dynamic diffusion, little is known about profit-maximizing control strategies. Using cellular automata, we model the d…
- Tahun Terbit
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This article offers a new mechanism to explain de-industrialization in response to a price increase of the manufactured good. In our trade model, one sector (agriculture) is perfectly competitive whilst the other (manufacturing) is monopolistically competitive. Both industries use skilled and unskilled labour as inputs. Entry into manufacturing requires a fixed cost in terms of skilled labour o…
- Tahun Terbit
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This article decomposes fluctuations in the German unemployment rate into changes in inflows (job separation) and outflows (job finding). For this purpose, we construct and examine monthly labour market transition rates from the West German sample of the SOEP (and the CPS) for the period 1984�2009. We explicitly take account of the low level of labour market transition rates in Germany. Ou…
- Tahun Terbit
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