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Trip-Level Analysis of Efficiency Changes in Oregon's Deepwater Trawl Fishery AgEcon
Tomberlin, David; Holloway, Garth J..
In 2003, an industry-financed, government-administered buyback of trawl fishing permits and vessels took place on the US West Coast, resulting in the retirement of about one-third of the limited-entry trawl fleet. The lack of cost data in this fishery precludes an analysis of how the buyback has affected profitability, but changes in technical efficiency can provide some insight into the program's effects. This paper, the first of a planned series of analyses of the buyback's effect on technical efficiency in the trawl fleet, applies stochastic frontier analysis to assess whether technical efficiency changed perceptibly after 2003. We adopt a hierarchical modeling approach estimated with Markov Chain Monte Carlo methods, and present results from both...
Tipo: Working or Discussion Paper Palavras-chave: Fishery Buyback; Technical Efficiency; Stochastic Production Frontier; Bayesian Inference; Markov Chain Monte Carlo; Resource /Energy Economics and Policy; Q2; L5; C1.
Ano: 2007 URL: http://purl.umn.edu/8223
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LONG-TERM FORECASTING OF INTERNATIONAL FOREST PRODUCT MARKETS: THE GFPM MODEL AND IMPLICATIONS FOR EUROPE AgEcon
Buongiorno, Joseph; Zhang, Dali; Rytkonen, Antti; Zhang, Yibing; Zhu, Shushuai; Tomberlin, David.
The Global Forest Products Model (GFPM) was developed to upgrade the FAO methodology for forest products outlook projections. Its purpose is to analyze and project the consumption, production, trade, and prices of forest products. The system deals with 180 individual countries, three classes of roundwood, sawnwood, three kinds of panels, three of pulp, waste paper, and three types of paper and paperboard. The system is built on market equilibrium theory, with imperfect foresight. The short-term equilibrium is modeled by price-endogenous linear programming determining production, consumption, trade, and market-clearing prices in any given year, subject to short-term capacities of production. Year to year changes are represented by equations predicting...
Tipo: Conference Paper or Presentation Palavras-chave: International Relations/Trade.
Ano: 1998 URL: http://purl.umn.edu/14478
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