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annotated bibliography of fisheries economics literature - Office of ...

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Commodity Economics Division, Economic Research Service, U.S.<br />

Department <strong>of</strong> Agriculture, Staff Report No. AGES 9136.<br />

Eighty-eight theoretical and empirical studies that focus on various<br />

aspects related to modeling the economic linkage between retail demand and<br />

farm level demand for food commodities and related inputs are reviewed. The<br />

focus <strong>of</strong> each study and its more salient features and conclusions related to<br />

the retail to farm demand linkage are summarized.<br />

Wolfe, Philip (1959). "The Simplex Method for Quadratic Programming."<br />

Econometrica, 27(3):381-398.<br />

A computational procedure is given for finding the minimum <strong>of</strong> a<br />

quadratic function <strong>of</strong> variables subject to linear inequality constraints. The<br />

procedure is analogous to the Simplex Method for linear programming being<br />

based on the Barankin-Dorfman procedure for this problem.<br />

Wolff, Maury (1972). "A Study <strong>of</strong> North Carolina Scrap Fishery."<br />

Special Scientific Report No. 20, Division <strong>of</strong> Commercial and Sports<br />

Fisheries, North Carolina Department <strong>of</strong> Natural and Economic<br />

Resources, March, 29 pp.<br />

A total <strong>of</strong> 18,955 fish were tagged in an effort to obtain movement,<br />

growth, and mortality characteristics <strong>of</strong> young Atlantic croaker (Micropogon<br />

undulatus), Spot (Leiostomus xanthurus), and Weakfish (Cynoscion regalis).<br />

Samples were taken from trawler landed scrapfish. Sixty-three species <strong>of</strong> fish<br />

were identified. Spot, croaker, and weakfish comprised 48.2% by weight <strong>of</strong> the<br />

total scrap. Seventeen edible species totaled 71.0% <strong>of</strong> the trawler discard.<br />

Comparison <strong>of</strong> landings and discard samples indicated that nearly 100%, 65%,<br />

and 43% <strong>of</strong> landed spot, croaker, and weakfish, respectively, are discarded as<br />

scrap. Samples were collected to determine the ratio <strong>of</strong> discarded fish to<br />

shrimp and the species composition <strong>of</strong> the fish discard. Fifty-one species <strong>of</strong><br />

fish were identified in the samples. Spot, croaker, and weakfish totaled<br />

66.8% by weight <strong>of</strong> the discard. Fifteen edible species accounted for 84.2% <strong>of</strong><br />

the discard. The overall fish/shrimp discard ratio expressed in pounds was<br />

determined to be 5.4:1. The ratio for night samples was 46:1, while that for<br />

day samples was 6.3:1. Samples <strong>of</strong> spot, croaker, and weakfish were retained<br />

during tagging operations for age analyses. Forty-one percent <strong>of</strong> all spot,<br />

49% <strong>of</strong> all croaker, and 81% <strong>of</strong> all weakfish discarded as scrap were 0 age.<br />

Woodland, A.D. (1979). "Stochastic Specification and the Estimation <strong>of</strong><br />

Share Equations." Journal <strong>of</strong> Econometrics, 10:361-383.<br />

The standard stochastic specification for a system <strong>of</strong> share equations is<br />

obtained by assuming that the shares have a joint normal distribution with<br />

means depending upon exogenous variables and a constant covariance matrix.<br />

This specification ignores the requirement that shares be between zero and<br />

unity by giving positive probability to shares outside this range. An<br />

alternative stochastic specification involving the Dirichlet distribution,<br />

that automatically limits shares to the unit simplex, is suggested. A<br />

comparison <strong>of</strong> results obtained from the two specifications is made using<br />

sampling experiments and data from three different empirical studies. The<br />

sampling experiments and empirical applications show that the results are<br />

generally quite close, thus providing some justification for the continued use<br />

<strong>of</strong> the normal distribution specification in the estimation <strong>of</strong> share equations.<br />

The World Bank (1991). "Staff Appraisal Report, Republic <strong>of</strong> Maldives,<br />

Third Fisheries Project." Report No. 9880-MAL, Agricultural<br />

Operations Division, Country Department V, Asia Regional <strong>Office</strong>.<br />

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