|
|
|
| Registros recuperados: 28 | |
|
|
| 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 |
| |
|
|
| Komarek, Adam M.; MacAulay, T. Gordon. |
| Using an expected mean-variance model the changes in farm enterprise levels and indirect utility were examined under conditions of risk aversion, budget constraints and gross margin variance. An extension of the comparative statics of the expected mean-variance model was adopted by introducing a budget constraint into the constrained optimisation problem. A 10-year expected mean-variance whole-farm model was solved for a farm in the wheat-sheep zone of Australia to provide an empirical example. Results were obtained using no planning horizon (the static model) and then with a five-year rolling planning horizon (the dynamic model). In addition, enterprise levels were constrained to match levels observed on the farm so as to compare incomes between the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Whole-farm modelling; Enterprise selection; Risk.; Farm Management; Q12; C61. |
| Ano: 2011 |
URL: http://purl.umn.edu/100574 |
| |
|
| |
|
| |
|
|
| MacAulay, T. Gordon; Batterham, Robert L.; Fisher, Brian S.. |
| Standard spatial equilibrium activity analysis models, as developed by Takayama and Judge (1971), are based on linear supply and demand functions and fixed input-output coefficients. Such models are suitable for multiple market level trading systems where the fixed input-output coefficients are appropriate. A primal-dual price form of these models is developed in which the assumption of constant per unit costs of transformation is relaxed. In the case when the average cost curves of transformation are quadratic in nature the problem becomes one that will be termed cubic programming (that is, a cubic objective function and linear and/or quadratic constraints) which is solved in a concave region of the solution space. In the paper, the formulation of a... |
| Tipo: Journal Article |
Palavras-chave: Research Methods/ Statistical Methods. |
| Ano: 1989 |
URL: http://purl.umn.edu/22998 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| Pandey, Sushil; Piggott, Roley R.; MacAulay, T. Gordon. |
| Annual time series data for the period 1950-51 through 1975-76 are used to estimate the price elasticity of aggregate Australian agricultural supply using two methods. The short-run elasticity is estimated to be highly inelastic but it has been increasing through time. The preferred estimate of the long-run elasticity is in the relatively inelastic range and it has also been increasing through time. Some implications of these results for intersectoral resource flows and compensatory assistance, the cost-price squeeze, the effects of the mineral boom and monetary policy are discussed. |
| Tipo: Journal Article |
Palavras-chave: Demand and Price Analysis. |
| Ano: 1982 |
URL: http://purl.umn.edu/22705 |
| |
|
|
| 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 |
| |
|
| |
|
|
| 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 |
| |
|
|
| Van Hung, Pham; MacAulay, T. Gordon; Marsh, Sally P.. |
| Land fragmentation, where a single farm has a number of parcels of land, is a common feature of agriculture in many countries, especially in developing countries. In Vietnam, land fragmentation is common, especially in the north. For the whole country, there are about 75 million parcels of land, an average of seven to eight plots per farm household. Such fragmentation can be seen to have negative and positive benefits for farm households and the community generally. Comparative statics analysis and analysis of survey data have led to the conclusion that small-sized farms are likely to be more fragmented, and that fragmentation had a negative impact on crop productivity and increased family labour use and other money expenses. Policies which allow the... |
| Tipo: Journal Article |
Palavras-chave: Development economics; Land fragmentation; Land use and tenure; Production economics; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/118327 |
| |
|
|
| 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 |
| |
|
|
| Greenville, Jared W.; MacAulay, T. Gordon. |
| The use of marine 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 hypothetical predator–prey fishery is used to test the performance of protected areas in a fishery with heterogenous environments. Protected areas are analysed under density-dependent and sink-source dispersal relationships between the subpopulations that occur within the fishery. Differing management structures governing resource extraction are analysed. The focus of the study is placed on the biological and management characteristics that yield benefits to both fishers and society. It is shown that the establishment of a protected area improves fishery rent and lowers... |
| Tipo: Journal Article |
Palavras-chave: Bioeconomics; Fisheries management; Marine protected areas; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/116924 |
| |
|
|
| 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 |
| |
|
|
| 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 |
| |
|
|
| Greenville, Jared W.; MacAulay, T. Gordon. |
| A multiproduct spatial equilibrium model of world steel trade is presented in this paper. The model is used to analyse the impacts of the safeguard trade barriers brought about by the USA in order to protect their domestic industry from the so-called unfair competition. Emphasis is placed on the likely effect on the Australian industry and possible policy responses available to the industry. A case study is made of Australia’s three largest export products; namely, slab, hot-rolled and cold-rolled steel, which share some substitutability in supply and demand because of the nature of the industry. As a result of the safeguard barriers to steel trade, world steel prices fell and trade shifted away from the USA to other importing regions. |
| Tipo: Article |
Palavras-chave: Spatial equilibrium model; Steel; Trade; International Relations/Trade. |
| Ano: 2005 |
URL: http://purl.umn.edu/118505 |
| |
| Registros recuperados: 28 | |
|
|
|
