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A Structural Model of the World Wool Market AgEcon
Layman, B.D..
This paper summarises the development, structure and data sources of the Western Australian World Wool Model. The model is a comparative static, partial equilibrium model of the world wool market. The technique used for the model is applied general equilibrium (AGE) modelling. Western Australia is separated from the rest of Australia as a production region. A key feature of the model is that raw wool is broken down into 9 different qualities, which determine the end use of the wool. The construction of a database containing these wool qualities is detailed. Potential uses for the model are outlined, and results are compared and contrasted with earlier structural models of the world wool market. Finally, advantages and disadvantages of the approach taken...
Tipo: Presentation Palavras-chave: Wool; Value chain modelling; Processing research.; Marketing.
Ano: 1999 URL: http://purl.umn.edu/123691
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Age at First Mating on Lifetime productivity of Corriedale Ewes in Southern Brazil. Repositório Alice
OLIVEIRA, M.M. de; KENNEDY, J.P.; SELAIVE-VILLARROEL, A.B..
A total of five different Corriedale flocks (respectively initiated in years 1976--1980), totalling 2,561 breeding ewes, were first mated at 19-20 or 30-31 months of age. Lifetime production data on: a) fleece weight and its components (as measured by greasy fleece weight, washing yield, clean fleece weight, fibre diameter and staple length), b) reproductive performance (as evaluated by the number of lambs weaned/ewe joined and lamb weaning weight/ewe joined) and c) ewe liveweight, were investigated within each flock up to 1982. Considering the environment provided in the study, the results indicated that earlier mating in these Corriedale ewes depressed their subsequent wool quantity, yet there was no appreciable effect upon wool quality components and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Sheep; Mating age; Wool; Lambs.
Ano: 1993 URL: http://www.alice.cnptia.embrapa.br/handle/doc/105435
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An Equilibrium Displacement Model of the Australian Sheep and Wool Industries AgEcon
Mounter, Stuart W.; Griffith, Garry R.; Piggott, Roley R.; Fleming, Euan M.; Zhao, Xueyan.
This report documents the specification of an equilibrium displacement model (EDM) of the Australian sheep and wool industries. The model is capable of estimating and comparing the potential benefits from R&D and generic promotion investments, and other policy changes, in the different sectors and markets of the Australian sheep and wool industries. Inclusive in the model are the multiple components of the Australian sheep and wool industries to account for cross-product interactions not considered in most previous studies. A high degree of industry disaggregation within the model enables estimation of the distribution of the potential benefits among the various industry sectors and across different regional environments. A number of hypothetical...
Tipo: Report Palavras-chave: Wool; Sheep meat; Research and development; Economic; Evaluation; Australia; Agribusiness; Farm Management; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q160.
Ano: 2008 URL: http://purl.umn.edu/37663
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Composition of the National Sheep Flock and Specification of Equilibrium Prices and Quantities for the Australian Sheep and Wool Industries, 2002-03 to 2004-05 AgEcon
Mounter, Stuart W.; Griffith, Garry R.; Piggott, Roley R.; Fleming, Euan M.; Zhao, Xueyan.
The data used, and the methods and assumptions fundamental to the development of an equilibrium displacement model (EDM) of the Australian sheep and wool industries specified in Mounter et al. (2007), are contained in this report. The national sheep flock is disaggregated into Merino and non-Merino sheep in the three agricultural zones of Australia using 2002-03 Australian agricultural and grazing industries survey data. Opening and closing sheep numbers, death rates and weaning percentages were used to derive the supply and use of sheep in each zone. Annual shorn wool production was split into four fibre-diameter categories in each zone corresponding to ABS wool export categories. Wool production percentages and relative greasy fleece weights were used to...
Tipo: Report Palavras-chave: Wool; Sheep meat; Research and development; Economic; Evaluation; Australia; Agribusiness; Agricultural and Food Policy; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q160.
Ano: 2007 URL: http://purl.umn.edu/37664
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Cooperative Wool Marketing Pools and Warehouses: Industry Update, Issues and Options AgEcon
Hogeland, Julie A.; Sronce, Philip W..
In 1981, there were 158 cooperative wool marketing pools and 9 cooperative warehouses. Pools operate a few days each year to assemble and sell wool. Warehouses operate daily and also grade, store, and blend wool to buyer specifications. Pools frequently sell without knowledge of grade and clean fiber content. Producer bargaining power is also limited by declining wool production, large variation in pool membership and volume, and overlapping marketing territories among warehouses. Processing, consolidating pool and warehouse marketing, and changing pool pricing to reflect clean fiber content are options to lower marketing costs and better market power.
Tipo: Report Palavras-chave: Wool; Cooperative; Pool; Agribusiness.
Ano: 1984 URL: http://purl.umn.edu/52027
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Estimation of Genetic Parameters for Weight, Reproduction, and Wool Traits of Suffolk Sheep OAK
中川, 智史; 鈴木, 三義; 山内, 和律; 山田, 渥.
滝川畜産試験場で1980年から1996年に集積された記録を用いて,サフォーク種の体重形質,繁殖形質,羊毛形質の遺伝的パラメータをREMLにより推定した.体重形質の直接遺伝率は日齢にともない増加し(0.15→0.31),母性遺伝率は日齢にともない減少した(0.24→0.09).直接遺伝効果と母性遺伝効果間の相関は日齢にともない正から負へと変化した(0.21→−0.42).繁殖形質の直接遺伝率はいずれも低い値であり(0.03〜0.18),羊毛形質はいずれも高い値であった(0.36〜0.60).直接遺伝効果間の相関は,体重形質間(0.29〜0.92)と繁殖形質間(0.19〜0.88)で正の値,体重形質と繁殖形質間(−0.01〜0.57)ではほとんどが正の値であった.羊毛形質と体重形質および繁殖形質の間では幅広い範囲の値をとった(−0.28〜0.51).
Palavras-chave: Genetic parameter; Weight; Reproduction; Wool; Suffolk.
Ano: 2005 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2601
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Joining Time and Stocking Rate on the Production of Corriedale and Romney Sheep Lambing on Winter Improved Pasture in Southern Brazil. Repositório Alice
OLIVEIRA, N.M. de; KENNEDY,J.P.; SELAIVE-VILLARROEL, A.B..
Wool weight, fleece components and reproductive performance of Corriedale and Romney sheep joined within three periods (14 january-25 february, 01 march-12 april and 15 april-27 may) and stocked at two rates (10 ewes/ha and 15 ewes/ha) on paddocks of winter improved pasture (Trifolium repens and Lolium multiflorum) up to weaning, were examined during 5 years (1977-1981) at EMBRAPA, Bage, RS, Brazil. In the environment employed, the results were consistent in showing that Corriedales were superior to Romneys either in wool quantity and quality or in reproductive performance, and indicated that when 10 or 15 ewes are stocked per hectare, the higher stocking rate did not cause any harmful effect on both wool or reproductive components. Fleeces produced from...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Sheep; Breed; Wool; Lambs.
Ano: 1993 URL: http://www.alice.cnptia.embrapa.br/handle/doc/105404
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Measuring the Impact of Staple Strength-Enhancing Technologies on Australian Wool Producer Profits: A Duality-Based Approach AgEcon
Templeton, Deborah J.; Griffith, Garry R.; Piggott, Roley R.; O'Donnell, Christopher J..
Wool tenderness is a significant problem in Australia, especially in areas where sheep graze under highly seasonal conditions. In this study, a duality-based modeling framework is implemented to assess the economic impact of staple strength-enhancing research on the profits of Australian woolgrowers. Within this framework, a normalized quadratic profit function is specified and estimated. The model is based on a number of fundamental characteristics of the Australian wool industry and the staple-strength enhancing technology being assessed. The model consists of a system of equations that are specified in terms of effective, rather than actual, prices. The interrelationships between the netputs are allowed for in the model in a manner that is...
Tipo: Working or Discussion Paper Palavras-chave: Profit function approach; Research evaluation; Wool; Staple strength; Economic analysis; Livestock Production/Industries; Productivity Analysis.
Ano: 2004 URL: http://purl.umn.edu/12922
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New Zealand Wool Inside: A Discussion Case Study AgEcon
Conforte, Daniel; Dunlop, Samuel; Garnevska, Elena.
The IFAMR is the Official Journal of the International Food and Agribusiness Management Association: www.ifama.org
Tipo: Journal Article Palavras-chave: New Zealand; Wool; Ingredients marketing; Branding; Wool carpets; Case study; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Demand and Price Analysis; International Relations/Trade; Land Economics/Use; Livestock Production/Industries; Productivity Analysis; Teaching/Communication/Extension/Profession; Q13; Q12.
Ano: 2011 URL: http://purl.umn.edu/114716
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Raw wool production and marketing in China: ACIAR project 8811 AgEcon
Watson, Alistair S..
This evaluation and economic assessment is of a project funded by the Australian Centre for International Agricultural Research (ACIAR) aimed at improving economic knowledge of the Chinese wool industry. The project was carried out jointly by Australian agricultural economists at the Universities of Queensland and Sydney and their Chinese colleagues attached to the Institute of Agricultural Economics within the Chinese Academy of the Agricultural Sciences and the Institute of Rural Development within the Chinese Academy of the Social Sciences. The research has concentrated on understanding the supply side of the Chinese wool industry and links between wool production and the marketing system within China. However, the research has consequences for Chinese...
Tipo: Book Palavras-chave: Wool; China; Production; Trade; Australia; Industry; Agricultural and Food Policy; Farm Management; International Development; Livestock Production/Industries; Production Economics.
Ano: 1998 URL: http://purl.umn.edu/47193
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Sheep CRC Renewal Proposal: Economic Evaluation of the Proposed Scientific Themes AgEcon
Griffith, Garry R.; Vere, David T.; Jones, Randall E..
The Australian sheep industry and its associated research and development agencies have developed a proposal for the CRC for Sheep Industry Innovation. “Top-down” and “bottomup” procedures were used to assess the expected economic benefits from this proposal. Formal “with-CRC” and “without-CRC” scenarios were defined for each product and each research theme. Relevant costs were similarly defined. The requested investment by the Commonwealth and the Australian sheep industry in the CRC is assessed relative to a scenario where an alternative, lower cost research program into this industry is implemented. These extra resources have a discounted value of about $34 million over the 25-year period of this evaluation. These resources are sufficient to allow some...
Tipo: Report Palavras-chave: Wool; Sheep meat; Research and development; Economic; Evaluation; Australia; Agribusiness; Livestock Production/Industries; Production Economics; Research and Development/Tech Change/Emerging Technologies; Q160.
Ano: 2006 URL: http://purl.umn.edu/42656
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Skin and coat traits in sheep in Brazil and their relation with heat tolerance. Repositório Alice
MCMANUS, C.; LOUVANDINI, H.; GUGEL, R.; SASAKI, L. C. B.; BIANCHINI, E.; BERNAL, F. E. M.; PAIVA, S. R.; PAIM, T. P..
bitstream/item/183407/1/McManus2011-Article-SkinAndCoatTraitsInSheepInBraz.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bergamasca; Hair; Santa-Inês; Pigmentation; Sweat glands; Wool.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/912266
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Technology options for sustainable livestock production in India Open Agri
P.S..
Palavras-chave: Technology; Breeds (animals); Milk; Crossbreds; Milk products; Wool; Breeding methods; Grazing systems; Oligosaccharides.
Ano: 2019 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4148
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Use of strategies and decision rules by Australian wool producers to manage uncertainty AgEcon
Murray-Prior, Roy B.; Wright, Vic.
Decisions by Australian wool producers were modelled with a technique combining personal construct psychology and hierarchical decision models. Both strategic and tactical approaches were evident in wool producers’ responses to the risks associated with producing and marketing their wool. Strategic responses included avoiding short to medium-term response to price changes, diversification, maintaining equity and selling wool at auction in the same sale each year. Producers identified many types of risk, with each engendering a distinctive response. Similarly the context of a decision appeared to have a major influence on the attitude to risk. Simplifying decision rules were apparent that helped producers deal with the physical, information, and processing...
Tipo: Article Palavras-chave: Hierarchical decision models; Risk; Uncertainty; Ambiguity; Strategy; Wool; Farm Management.
Ano: 2004 URL: http://purl.umn.edu/120919
Registros recuperados: 14
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