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A Bioeconomic Analysis of Protected Area use in Fisheries Management AgEcon
Greenville, Jared W.; MacAulay, T. Gordon.
The use of protected areas as a fishery management tool has been suggested as a hedge against management failures and variation in harvests. A stochastic bioeconomic model of a two-species fishery will be used to test the performance of protected areas as a management tool in a fishery with heterogenous environments. Protected areas are analysed under density-dependent and sink-source dispersal relationships between environments within the fishery. Differing levels of management control over fishery resource extraction are analysed. The model is applied to Manning Bioregion in NSW. The focus of the study is placed on the biological and institutional characteristics that yield benefits to the fishery.
Tipo: Conference Paper or Presentation Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/21469
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A bioeconomic model of a marine park AgEcon
Greenville, Jared W.; MacAulay, T. Gordon.
A spatial bioeconomic model of a fishery will be used to investigate the effect of creating a marine park in a heterogeneous environment. Focus will be placed on the relevant biological and economic conditions needed to provide a benefit to both fishers and conservationists alike. The fishing environment will be one of limited entry to better simulate the conditions which exist in many developed nations. Fishers will be assumed to operate across patched in which the fish stocks are linked via either sink-source or density dependant spatial relationships.
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic; Marine protected area; Fisheries; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/58451
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A Bio-economic Model of a Shrimp Hatchery in the Mekong River Delta of Vietnam AgEcon
Sinh, L.X.; MacAulay, T. Gordon; Brennan, Donna C..
Shrimp culture areas and production of the Mekong Delta cover about 60 percent of the total shrimp areas and production of Vietnam. Especially, the Delta contributes about 80 percent of the total shrimp production for export. Rapid development of the shrimp industry is raising a number of serious problems that need to be solved. Shrimp seed supply (post larvae production) plays an essential role in the shrimp industry and it is one of the most important constraints to the development of the shrimp industry in the Delta. The focus of this study is aimed at obtaining an improvement in both the profit per day and post larvae production of the shrimp hatchery in the Mekong River Delta of Vietnam. A Monte Carlo simulation approach was applied to develop a...
Tipo: Conference Paper or Presentation Palavras-chave: Shrimp hatchery; Larval stage; System simulation modelling; Agricultural and Food Policy; Production Economics.
Ano: 2003 URL: http://purl.umn.edu/58261
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A GAME THEORY ANALYSIS OF MANAGEMENT STRATEGIES FOR THE SOUTHERN BLUEFIN TUNA INDUSTRY AgEcon
Klieve, H. M.; MacAulay, T. Gordon.
Game theory offers an alternative approach to standard means of resource assessment which can be of value in the definition and assessment of policy options for competing parties. Using a Nash co-operative game it has been possible in this paper to show the significance of fishing strategies for southern bluefin tuna which take into account the age distribution of the catch. Assuming Japan and Australia act according to a cooperative game then the optimal fishing strategy was found to involve Australia avoiding the fishing of the very young cohorts and Japan taking a moderate catch in subsequent older age classes but not the oldest of the age classes. Sub-optimal strategies were also presented and evaluated along with an indication of the level of biomass...
Tipo: Journal Article Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1993 URL: http://purl.umn.edu/22384
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Agency Theory and Wheat Marketing in Australia AgEcon
Bushell, James; MacAulay, T. Gordon.
The dual class shareholding company has been adopted as a way of managing the single desk operating system for wheat in Australia. Using B Class ASX listed shares to fund the operation of the company, and the use of A Class grower held shares to control the direction of the company, the objectives of the current arrangements are to maximise net pool returns to growers. Using principal-agent theory, the current marketing arrangements are examined. Considering both groups of shareholders as principals of one agent, this paper has focused on examining the contracts between the agent and each principal, and the incentives provided by these contracts to the agent to act in the interests of each of the shareholder groups. The reward to the agent from each...
Tipo: Conference Paper or Presentation Palavras-chave: Marketing.
Ano: 2007 URL: http://purl.umn.edu/10350
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Agricultural Economics at the University of New England AgEcon
MacAulay, T. Gordon; Piggott, Roley R..
Tipo: Journal Article Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1988 URL: http://purl.umn.edu/12563
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Bioeconomic analysis of protected area use in fisheries management AgEcon
Greenville, Jared W.; MacAulay, T. Gordon.
Protected areas in fishery management have been suggested to hedge management failures and variation in harvests. In this paper, a stochastic bioeconomic model of a two-species fishery in the Manning Bioregion is used to test the performance of protected areas as a management tool in a fishery. The establishment of a protected area is analysed under the assumption of heterogenous environments that are linked via density-dependent or sink-source stock dispersal relationships. The sensitivity of the results to different degrees of management is also explored. The model is applied to the Ocean Prawn Trawl, and Ocean Trap and Line fisheries within Manning Bioregion in New South Wales, Australia. The focus of the study is placed on the biological and...
Tipo: Article Palavras-chave: Bioeconomics; Fisheries management; Marine protected areas; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/118521
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Competition Policy in Agriculture: A Review of Methods AgEcon
MacAulay, T. Gordon.
The nature of the competition policy public benefit tests, applied to various agricultural industries, is reviewed. Then, various analytical techniques that have been applied to the assessment of the public benefit test are examined. These techniques include analysis of price premiums, consideration of pooling and averaging, pricing to market tests, what-if scenarios, market power analysis, and price discriminating monopolist models. Some of the advantages and disadvantages of these approaches are summarised. Generally, all of these approaches have various strengths and a number of weaknesses so that the case for the assessment of costs and benefits must substantially depend on the logic of the effects of the regulation rather than the results of any...
Tipo: Presentation Palavras-chave: Competition policy; Price discrimination; Pricing to market; Price premiums; Agricultural and Food Policy.
Ano: 2000 URL: http://purl.umn.edu/123697
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Co-operative Research in Agricultural Economics AgEcon
MacAulay, T. Gordon.
Co-operation in research is a complex question which would seem to depend to a large extent on a number of necessary and sufficient conditions for success. In this note an attempt is made to define some of these conditions and then reflect on a few possibilities for co-operation between institutions, in particular between government departments and universities. First, however, it is necessary to provide a brief discussion of research objectives.
Tipo: Journal Article Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1988 URL: http://purl.umn.edu/12277
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EFFECTS OF PAST AUSTRALIAN WHEAT PRICE POLICIES ON KEY INDUSTRY VARIABLES AgEcon
Myers, Robert J.; Piggott, Roley R.; MacAulay, T. Gordon.
Evidence is provided on the extent to which wheat price policies operating over the period 1953-54 to 1983-84 achieved objectives related to the levels and stability of key industry variables. The general findings are that the levels of achievement have been modest and that trade-offs have been involved. This evidence is supplementary to the evidence already available from efficiency-based studies.
Tipo: Journal Article Palavras-chave: Demand and Price Analysis; Marketing.
Ano: 1985 URL: http://purl.umn.edu/22513
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Farm Size and Land Use Changes in Vietnam Following Land Reforms AgEcon
Marsh, Sally P.; MacAulay, T. Gordon.
Over the last decade the Vietnamese government has instigated land reforms that recognise the household as the basic unit of production and allocate land use rights to households. Under the 1993 Land Law these rights can be transferred, exchanged, leased, inherited, and mortgaged. This Land Law provided the foundation for the development of a market for land use rights. During 2001, 400 farm households were surveyed in four provinces in Vietnam. Along with production and consumption data, evidence was sought of land accumulation and consolidation, land use changes, and attitudes to land reform issues. Analysis of the data shows that there is an active market for land use rights, but the level of activity varies considerably between provinces. Some...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural policy; Land reform; Land market; Vietnam; Agricultural and Food Policy; Land Economics/Use.
Ano: 2003 URL: http://purl.umn.edu/57919
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GAMES, CLUBS AND MODELS: THE ECONOMICS OF AN AGRICULTURAL ECONOMICS SOCIETY AgEcon
MacAulay, T. Gordon.
Tipo: Journal Article Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1995 URL: http://purl.umn.edu/22857
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Issues in Modelling the Australian Dairy Industry: Joint Products, Market Power and Deregulation AgEcon
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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Land Transactions in the North of Vietnam: A Modelling Approach AgEcon
Van Hung, Pham; MacAulay, T. Gordon.
The use of mathematical models to describe the interactions of variables is useful in modern management. In this paper, a 'mixed' model combining the knapsack problem, a household model and a form of spatial equilibrium model into a modelling framework is developed. The impacts of changes in off-farm wage rates, transaction costs in the rental market, the output prices of paddy crops, and land transactions were examined in the model. The simulation has led to the conclusion that the real benefits to farm households from land consolidation may not be apparent until the real opportunity cost of farm labour begins to rise. In addition, a reform policy in the administrative sector which encourages, not only the process of land accumulation and the rental...
Tipo: Conference Paper or Presentation Palavras-chave: Land transactions; Modelling; Knapsack problem; Vietnam; Land Economics/Use; C6; Q15; Q24.
Ano: 2006 URL: http://purl.umn.edu/25601
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Livestock Dynamics: An Old Problem and Some New Tools AgEcon
MacAulay, T. Gordon; Hertzler, Greg.
A problem encountered in the econometric estimation of dynamic models of livestock systems is dynamic instability during simulation of models. In the case of systems where economic decisions are involved in the breeding and the slaughter of animals it is possible for parameters to be obtained which generate dynamic instability. In the paper, a simple representation of the dynamics of a livestock system is examined using techniques of dynamic analysis. The dynamic stability of such models depends fundamentally on the parameters determining the births and deaths and thus the relative flows in and out of the stock of animals. In some situations very narrow stability ranges for the values of the parameters are observed.
Tipo: Presentation Palavras-chave: Dynamic models; Beef herd; Dynamic instability; Dynamic processes; Livestock Production/Industries.
Ano: 2000 URL: http://purl.umn.edu/123699
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MALAYSIAN RICE TRADE AND GOVERNMENT INTERVENTIONS AgEcon
Vengedasalam, Deviga; Harris, Michael; MacAulay, T. Gordon.
Malaysia’s rice sector is highly protected, with the protection justified largely by arguments for food security. The government intervenes in the rice market by providing subsidies to farmers and consumers as well as imposing high import duties. Furthermore, the rice trade is controlled through a sole importer. In this paper, the welfare effects of eliminating the major government interventions in Malaysia’s rice sector are evaluated. A modified spatial price equilibrium model that incorporates a sole importer with a fixed domestic price has been developed to measure the welfare impacts of the market distortions. Four scenarios were developed: (1) removal of the sole importer but continuation of the subsidies and existing tariffs; (2) removal of the...
Tipo: Conference Paper or Presentation Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 2011 URL: http://purl.umn.edu/100726
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Marine Protected Areas in Fisheries Management AgEcon
Greenville, Jared W.; MacAulay, T. Gordon.
The use of protected areas as a fishery management tool has been suggested as a hedge against management failures and variation in harvests. A stochastic bioeconomic model of a two-species fishery will be used to test the performance of protected areas as a management tool in a fishery with heterogenous environments. Protected areas are analysed under density-dependent and sink-source dispersal relationships between environments within the fishery. The model is applied to Manning Bioregion in NSW. Protected area performance as a tool for fisheries will be analysed given the existing management arrangement. The focus of the study is placed on the biological and economic characteristics that yield benefits to the fishery.
Tipo: Conference Paper or Presentation Palavras-chave: Fisheries; Fisheries management; Bioeconomics; Marine protected areas; Resource /Energy Economics and Policy; Q2; Q22; Q28; Q57.
Ano: 2006 URL: http://purl.umn.edu/25532
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Modelling Farm Households in a Spatial Context: Vietnamese Agriculture AgEcon
MacAulay, T. Gordon; Hertzler, Greg.
In this paper a model is developed which brings together elements of the household models, spatial trading systems and demand systems with elements of production and income risk. Some of the implications of the design are analysed. The design is focussed on the problem faced by Vietnamese farm households as they face land use policy changes which will allow for the possibility of land consolidation, reduced input subsidies and increased market risk.
Tipo: Presentation Palavras-chave: Consumer/Household Economics; Farm Management.
Ano: 2000 URL: http://purl.umn.edu/123701
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Modelling Water Use in Thailand AgEcon
Piyanuch, Wuttisorn; MacAulay, T. Gordon; Batterham, Robert L..
In this paper a model is proposed for analysing alternative policies that might be used in allocating water in Thailand. The model used is an integration of farm linear programming models with a spatial equilibrium model, using the so-called price-linked farm and spatial model (Batterham and MacAulay, 1994). A method of linking spatial equilibrium models and linear programming representations of farm models via the demand side as opposed to the supply side is outlined in this paper. A case study is made of the Chao Phraya Delta, an area that is progressively challenged by competing claims for water use and which needs to better allocate water resources.
Tipo: Conference Paper or Presentation Palavras-chave: Water use; Spatial equilibrium model; Thailand; Resource /Energy Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/58272
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PRICE-LINKED FARM AND SPATIAL EQUILIBRIUM MODELS AgEcon
Batterham, Robert L.; MacAulay, T. Gordon.
The integration of detailed farm supply models with the basic spatial equilibrium model, is outlined. The direct linking of farm linear programming models with the spatial equilibrium model is achieved so that both prices and quantities are endogenous. Both the farm model and the spatial equilibrium model must be specified in primal-dual form to make the linkages. Limited details of the use of such a model in a study of a segment of the grain handling system in New South Wales are presented along with conclusions relating to the pricing of grain handling services.
Tipo: Journal Article Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1994 URL: http://purl.umn.edu/22953
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