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Repositório FGV de Conferências

FGV Conferences, 33º Meeting of the Brazilian Econometric Society

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Productivity Growth and Product Choice in Fisheries: the Case of the Alaskan pollock Fishery Revisited
Marcelo Oliveira Torres

Last modified: 27-09-2011

Abstract


It is notorious that fisheries’ profitability and fish stocks have been decreasing dramatically in the last decades as a result of overfishing. In some fisheries, however, sustainable, albeit market oriented, management practices are being put to test. The Alaskan pollock fishery, one of the largest in the world, is one of them.  In 1998, with the imposition of American Fisheries Act (AFA) this fishery has passed from a virtually open access type to a rationalized industry where transferable quotas where distributed and the fleet size reduced. The economic benefits and productivity growth as a result of more sustainable practices have been the subject of several studies. In this one we also estimate these benefits, focusing on the choice of processed products produced from the catch, using a dual model based on a multiproduct revenue function. The estimation procedure however, based on a latent variable econometric model, departs radically from the previous studies since it deals with the mixed distribution nature of the data. Benefits from the regulatory change are confirmed in this study. Our productivity growth estimates are however much higher, relatively to other studies’, comparing the periods pre- and post-AFA.


Keywords


Economics of Fisheries, Revenue function, Productivity, Environmental Factors

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