Download or read book Estimation of Average and Incremental Net Economic Values of Oregon Ocean Sport caught Salmon written by Nik Mustapha bin Raja Abdullah and published by . This book was released on 1988 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this study was to estimate the demand for and value of Oregon ocean sport-caught salmon fishery. The primary technique employed to estimate the recreational demand was an aggregated zone average travel cost method (TCM). The willingness of an angler to pay was deduced from the estimated demand for recreational fishing. The concept of consumers' surplus was used in conjunction with the travel-cost based demand functions to estimate the net economic value of Oregon ocean sport-caught salmon. The net economic value computed for the pooled data from all ten ports was found to be about $6.4 million. This value was calculated based on the total travel cost per mile of one-way distance equal to 72 cents. The regional travel cost method (RTCM) was developed to measure the effects of substitutes and quality variables in the travel cost model. A system of a linear demand equations for the six larger ports was estimated by the seemingly unrelated regression equation (SURE) method. The substitute distances as proxies for substitute prices were found to be insignificant for this model. Likewise, attempts to include substitute distances using indexes constructed by the Principal Component analysis failed to give significant results, with the exception of Garibaldi and Brookings. The total net economic value for the regional travel cost model estimated by SURE was $9.1 million. The incremental value per coho equivalent was also assessed by using the relationship between catch and effort per month by port. The coho equivalent was constructed on the basis of average weights of the commercial salmon catch, which was roughly two coho to one chinook salmon. The weighted average incremental value per coho and chinook was found to be $23.46 and $43.17, respectively. These values were about 50 percent of their respective average values. A total of 66 out of 234 distance zones created had zero values. Tobit analysis was employed to efficiently estimate the recreational demand from this kind of data. From the estimated demand function, a net economic value of about $12.7 million was obtained. This value was higher than those estimated by the SURE method and the OLS in the simple model. It should be noted that all the above value estimates were based upon demand models that were not consistent with the theory of consumer demand. However, a theoretically consistent system of demand equations was estimated and presented in Appendix D. This model fitted the data better than the other models and should give more accurate estimates of consumer surplus.
Download or read book An Evaluation of Alternative Estimates of Demand for and Benefits from Oregon Salmon Sport Fishing written by Ching-kai Hsiao and published by . This book was released on 1985 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. 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. However, this problem of bias was dealt with by using the instrumental variable approach. 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 in order to compute valid estimates of net economic benefits. 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 for estimating total and average consumer surplus. 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. Unfortunately, the numerical estimates of value per trip and per fish from the hedonic travel cost model were rather unstable and should be considered somewhat questionable for this study. Similarly, the estimates of marginal values per fish from the regional travel cost model did not seem very reasonable, being only about one-fourth of the average value per fish. Therefore, it appears that the more complex regional and hedonic travel cost models require more and better quality data to yield more accurate estimates of marginal values per fish.
Download or read book Recent Library Additions written by and published by . This book was released on 1992 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Values of Anadromous Fishes in Oregon Rivers written by Oregon. Legislative Assembly. Interim Committee to Make a Study of the Economic Values of Anadromous Fishes in the Rivers of the State of Oregon and published by . This book was released on 1952 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Leisure Recreation and Tourism Abstracts written by and published by . This book was released on 1989 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Bioeconomic Analysis of Water Allocations and Fish Habitat Enhancements John Day Basin Oregon written by Richard M. Adams and published by . This book was released on 1990 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Estimate of the Net Economic Value of the Sport Salmon Fishery of Washington State written by Thomas James Secrest and published by . This book was released on 1978 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salmon Recovery in the Pacific Northwest Agricultural and Other Economic Effects written by and published by . This book was released on 1996 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Improved Estimating Techniques on Predicted Net Economic Values for Salmon and Steelhead written by William G. Brown and published by . This book was released on 1972 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Resource Economics written by and published by . This book was released on 1989 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1988 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to American Doctoral Dissertations written by and published by . This book was released on 1989 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1977 with total page 1134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to California s Marine Life Management Act written by Michael L. Weber and published by . This book was released on 2000 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Economics of Salmon Aquaculture written by Frank Asche and published by John Wiley & Sons. This book was released on 2011-05-06 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1990, The Economics of Salmon Aquaculture was the first book to systematically analyse the salmon aquaculture industry, from both a market and production perspective. Since publication of the first edition of this book, the salmon aquaculture industry has grown at a phenomenal rate, with salmon now being consumed in more than 100 countries worldwide. This second edition of a very popular and successful book brings the reader right up to date with all the major current issues pertaining to salmon aquaculture. Commencing with an overview of the production process in aquaculture, the following chapters provide in-depth coverage of the sources of the world’s supply of salmon, the growth in productivity, technological changes, environmental issues, markets, market structure and competitiveness, lessons that can be learnt from the culture of other species, optimal harvesting techniques, production planning, and investment in salmon farms. Written by Frank Ashe and Trond Bjørndal, two of the world's leading experts in the economics of aquaculture, this second edition of The Economics of Salmon Aquaculture provides the salmon aquaculture industry with an essential reference work, including a wealth of commercially important information. This book is also a valuable resource for upper level students and professionals in aquaculture and economics, and libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important book on their shelves.
Download or read book Valuing Ecosystem Services written by National Research Council and published by National Academies Press. This book was released on 2005-05-14 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient recycling, habitat for plants and animals, flood control, and water supply are among the many beneficial services provided by aquatic ecosystems. In making decisions about human activities, such as draining a wetland for a housing development, it is essential to consider both the value of the development and the value of the ecosystem services that could be lost. Despite a growing recognition of the importance of ecosystem services, their value is often overlooked in environmental decision-making. This report identifies methods for assigning economic value to ecosystem servicesâ€"even intangible onesâ€"and calls for greater collaboration between ecologists and economists in such efforts.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1989 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
