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首页> 外文学位 >AN EVALUATION OF ALTERNATIVE ESTIMATES OF DEMAND FOR AND BENEFITS FROM OREGON SALMON SPORT FISHING (TRAVEL COST METHOD, OUTDOOR RECREATION, CONSUMER SURPLUS).
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AN EVALUATION OF ALTERNATIVE ESTIMATES OF DEMAND FOR AND BENEFITS FROM OREGON SALMON SPORT FISHING (TRAVEL COST METHOD, OUTDOOR RECREATION, CONSUMER SURPLUS).

机译：俄勒冈鲑鱼运动垂钓需求和收益的替代估计（旅行成本法，室外娱乐，消费者剩余）评估。

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摘要

The main objective of this study was to estimate the demand for and net economic benefits from Oregon salmon sport fishing. The travel cost method was used as the primary technique for demand analysis. Several empirical estimates of consumer surplus per trip and per fish were obtained from different estimation methods.;Higher estimates of net economic benefits also resulted from the use of unadjusted individual observations (UIO) for fitting the recreational demand function because this approach does not account for the declining participation rates for the more distant zones. Therefore, it is recommended that the individual observations be adjusted to a per capita basis, or that the probability of participation be linked to the UIO estimates of demand.;A quality variable was incorporated into regional and hedonic travel cost models. Average and marginal values of the primary site and substitutes sites thus were directly derived from the demand equations.;Estimates of total and average consumer surpluses computed from the traditional travel cost model were changed very little with the addition of the substitute and quality variables in the more completely specified regional travel cost models. This finding indicates that the traditional travel cost model may be basically robust. However, additional research on other recreational activities is needed to see if estimates of total consumer surplus from the traditional travel cost model always remain relatively stable when quality and substitute variables are included in a regional travel cost type of specification.;The differences in net economic benefits among different versions of the travel cost method were assessed. Empirical results indicated that the individual observation approaches produced higher consumer surplus estimates than the zone average approach when reported travel costs were used. These higher estimates of net economic benefits are believed to be due in part to the bias caused by travel cost measurement error. This bias was dealt with by using the instrumental variable approach.;Unfortunately, the numerical estimates of value per trip and per fish from the hedonic and regional travel cost models were rather somewhat questionable for this study. It appears that the more complex regional and hedonic travel cost models require more and better quality data. (Abstract shortened with permission of author.)
机译：这项研究的主要目的是估计俄勒冈鲑鱼运动捕鱼的需求和净经济利益。差旅成本法被用作需求分析的主要技术。从不同的估算方法获得了每行程和每条鱼的消费者剩余的一些经验估算。;较高的净经济效益估算也来自使用未经调整的个体观测值（UIO）来拟合娱乐需求函数，因为这种方法没有考虑到较远区域的参与率下降。因此，建议将每个观测值调整到人均基础，或者将参与的概率与UIO的需求估计值联系起来。质量变量已纳入区域和享乐成本模型。因此，主要站点和替代站点的平均和边际价值可以直接从需求方程中得出。通过在模型中添加替代和质量变量，传统旅行成本模型计算的总和平均消费者剩余估计几乎没有变化。更完整地指定了区域旅行成本模型。这一发现表明，传统的差旅费用模型可能基本上是稳健的。但是，还需要对其他娱乐活动进行其他研究，以查看当质量和替代变量包含在规范的区域旅行成本类型中时，传统旅行成本模型对总消费者剩余的估计是否始终保持相对稳定。评估了不同版本差旅费用方法之间的收益。实证结果表明，当使用报告的差旅费时，单独观察方法产生的消费者剩余估算值高于区域平均方法。这些较高的净经济利益估计被认为部分归因于差旅成本测量误差引起的偏差。通过使用工具变量方法可以解决这种偏差。不幸的是，对于享乐主义和区域旅行成本模型的每次旅行和每条鱼的价值数字估计，对于本研究颇为可疑。似乎更复杂的区域和享乐旅行成本模型需要更多，更好质量的数据。 （摘要经作者许可缩短。）

著录项

  • 作者

    HSIAO, CHING-KAI.;

  • 作者单位

    Oregon State University.;

  • 授予单位 Oregon State University.;
  • 学科 Economics Agricultural.;Agriculture Fisheries and Aquaculture.;Recreation.
  • 学位 Ph.D.
  • 年度 1985
  • 页码 163 p.
  • 总页数 163
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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