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Evidence of package trading in a mature multi-species ITQ market 5
Innes, James; Thebaud, Olivier; Norman-lopez, Ana; Little, L. Richard; Kung, John.
In multi-species fisheries managed under ITQs, the existence of joint production may lead to complex catch-quota balancing issues. Previous modelling and experimental research suggest that, in such fisheries, some fishers may benefit from the ability to trade packages of fishing quotas, rather than fulfil their quota needs by simultaneously bidding on separate single-species quota markets. This note presents evidence of naturally occurring package trades in a real fishery. Based on this evidence, we suggest that further empirical and modelling research is required on the potential and limitations of package quota trading in mixed fisheries managed with ITQs.
Tipo: Text Palavras-chave: ITQs; Mixed fisheries; Package trading; Joint production; Great Barrier Reef.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00173/28470/32144.pdf
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Farmers' Participation in European Agri-Environmental Policies 31
Dupraz, Pierre; Vanslembrouck, Isabel; Bonnieux, François; Van Huylenbroeck, Guido.
This paper examines the factors influencing farmers' participation in several agri-environmental schemes. A multinominal logit model is used to separate between participating and nonparticipating farmers. In addition this model allows to predict farmers participation in one measure as well as in different measures simultaneously. Data stems from a survey conducted in eight European countries and includes a description of both farmer and farm characteristics. Three categories of schemes have been analysed: landscape maintenance, biodiversity protection and restriction of intensive farming practices. The combination of these three types of schemes provides eight possible packages which can be selected by eligible farmers. The multinominal logit model shows...
Tipo: Conference Paper or Presentation Palavras-chave: Agri-environmental policy; Multinominal logit model; Joint production; Farms; Agricultural and Food Policy.
Ano: 2002 URL: http://purl.umn.edu/24799
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Flexibility of joint production in mixed fisheries and implications for management 5
Briton, Florence; Thebaud, Olivier; Macher, Claire; Gardner, Caleb; Richard Little, Lorne.
Over the past decade, efforts have been made to factor technical interactions into management recommendations for mixed fisheries. Yet, the dynamics underlying joint production in mixed fisheries are generally poorly captured in operational mixed fisheries models supporting total allowable catch advice. Using an integrated ecological–economic simulation model, we explore the extent to which fishers are likely to alter the species composition of their landings in a mixed fishery managed with individual transferable quotas, the Australian Southern and Eastern Scalefish and Shark Fishery. Our simulations capture three different types of joint production problems, highlighting the flexibility that exists in terms of achievable catch compositions when quota...
Tipo: Text Palavras-chave: Fishing behaviour; ITQ; Joint production; Mixed fisheries; Southern and Eastern Scalefish and Shark Fishery; TAC advice.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00689/80093/83146.pdf
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Issues in Modelling the Australian Dairy Industry: Joint Products, Market Power and Deregulation 31
MacAulay, T. Gordon; Owen, Kate M.; O'Donnell, Christopher J..
This paper reports on an expanded and revised version of the spatial equilibrium model of the Australian dairy industry developed by MacAulay (1997). In the expanded version there is demand for five manufactured products. The transformation from bulk milk to final product is modelled by considering milk and dairy products in terms of their primary components, milk fat and protein. For market milk, a variable element was added to the margin to replicate the effects of market power in the processor to retail chain. Some implications for the deregulation of the Australian dairy industry are noted.
Tipo: Presentation Palavras-chave: Spatial equilibrium models; Joint production; Market power; Dairy; Livestock Production/Industries; Marketing.
Ano: 1999 URL: http://purl.umn.edu/123833
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Mixed Crop Livestock Farming Incorporating Agroforestry Orchards Facing the New Cap 31
Ducros, Denis; Kephaliacos, Charilaos; Ridier, Aude.
In the context of the new CAP, decoupling subsidies from production should incite farmers to reorganize their production systems, particularly through diversification opportunities. In this paper we focus our analysis on the conditions that could permit the development of extensive orchards by modelling mixed crop livestock farms, which incorporate orchards. A mathematical programming model is built to simulate various intensification levels characterizing different technical pathways within the different farm activities (cattle breeding, forage fields, arboriculture). This model also enables us to take into account some environmental indicators related to these pathways. Moreover, the method illustrates technical complementarities existing within the...
Tipo: Conference Paper or Presentation Palavras-chave: Decoupling; Diversification; Agroforestry orchards; Joint production; Mathematical programming; Agribusiness; C61; D24; Q12; Q21.
Ano: 2005 URL: http://purl.umn.edu/24532
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New Developments in Agricultural Policy Modelling and Consequences for Managing the Policy Analysis Systems 31
Van Huylenbroeck, Guido; Lauwers, Ludwig H.; Fernagut, Bruno.
Last decade, the importance of multifunctionality and environmental issues in agricultural policies has been growing. This shift in scope of agricultural policy instruments implies an adjustment of the conventional ex-ante policy analysis systems. New requirements on input and output parameters will be needed. The objective of this paper is to show how the input/output management can be improved. Focus is on how the information management by the system can enhance the policy analysis and decision making and facilitate information flow and social support from the stakeholder debate.
Tipo: Conference Paper or Presentation Palavras-chave: Policy impact analysis; Joint production; Farmers' behaviour; Knowledge flow Organisation; Agricultural and Food Policy; C8; Q18.
Ano: 2006 URL: http://purl.umn.edu/25256
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REGULATION IN QUALITY DIFFERENTIATED MARKETS: PESTICIDE CANCELLATIONS IN U.S. APPLE PRODUCTION 31
Roosen, Jutta.
If agricultural output results from non-separable multiproduct technologies, environmental regulation can change the set of possible output combinations. This will be important when regulation affects the quality composition of a crop. As a result, market and welfare changes have to be assessed in technology-related markets. We present a model that serves to estimate the economic impacts in such instances and use it in the assessment of pesticide regulation in the U.S. apple industry. Impacts for four pesticide cancellation scenarios are assessed. It is shown that changes in the quality of a crop lead to significant market reallocation effects.
Tipo: Journal Article Palavras-chave: Apple production; Joint production; Multiproduct firm; Pesticide cancellation; Welfare assessment; Crop Production/Industries; Marketing.
Ano: 2001 URL: http://purl.umn.edu/15289
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