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| Registros recuperados: 32 | |
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| McCarthy, Nancy. |
| In this paper, we develop a simple game-theoretic model to explore the relationship between management of common pool resources used as an input in livestock production (common pastures) and the adoption of inputs associated with intensified per animal production (veterinary services, purchased fodder, feed concentrates, etc.). Theoretically, it is shown that better managed pastures should lead to increased adoption of complementary inputs but decrease adoption of substitute inputs; impacts on stock levels, however, are ambiguous. An empirical model is developed and applied to data collected in northeast Burkina Faso in 2000 and 2002. Results indicate that better managed pastures, proxied by community-level cooperative capacity indices, are indeed... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Burkina Faso; Game theory; Common property; Livestock; Collective action; Pastoralism; Livestock Production/Industries. |
| Ano: 2004 |
URL: http://purl.umn.edu/50063 |
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| Hannesson, Rognvaldur; Kennedy, John O.S.. |
| Where a fish stock straddles or migrates between country A's exclusive economic zone (EEZ) and country B's EEZ, or the high seas, vesting ownership rights in the stock with A does not ensure efficient harvesting of the stock. This problem arises in the case of migratory tuna stocks in the Western and Central Pacific Ocean (WCPO). Four species of tuna reside for only part of the year in the EEZs of coastal states, many of which are Pacific Island Countries (PICs). Most of the harvesting of the stocks is carried out by distant water fishing nations such as the USA, Japan, Taiwan, China and Korea. Problems arise for achieving efficiency and equity in the harvesting of the stocks by disparate countries. The problems are made more difficult by changes in the... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Bioeconomic modelling; Game theory; Optimisation; Migratory tuna; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/9458 |
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| Su, Shi-hai; Liu, Qian; Liu, Ping-ping. |
| The status quo of the violation of migrant workers’ interests is analyzed, the results are not so optimistic. The overall situation of migrant workers’ training rights is poor; migrant workers ’rights to enjoy legal holiday are seriously violated; the working conditions and health protection measures are weak; migrant workers’ rights to get legal payment are damaged to a different degree; the social security mechanism for migrant workers is imperfect and there are still large gap between supply and demand. Combining with the relevant theories of Game theory, migrant workers’ interests obtained under the situation of entering right protection organizations and do not entering the organizations are analyzed, the results show that entering right protection... |
| Tipo: Journal Article |
Palavras-chave: Interests of migrant workers; Game theory; Labor union，China; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/102370 |
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| Farias, Christiano Alves; Vieira, Wilson da Cruz; Santos, Maurinho Luiz dos. |
| The objective of this paper was to compare and to analyze three portfolio selection models: Mean-Variance, Minimax and Minimax Weighted. These models were evaluated using historical data (September 1999 to August 2000, January 2001 to December 2001 and February 2002 to January 2003) obtained from the Brazilian Stock Market (Bovespa). They were selected optimal portfolios to each month based on the returns of the last twelve months. The results show that the returns obtained through the Mean-Variance model were superiors in certain circumstances and inferiors in others when compared to the Ibovespa index. The Minimax model obtained the best accumulated returns when compared with the others models and the Ibovespa index. |
| Tipo: Journal Article |
Palavras-chave: Portfolio selection; Mean-variance; Bovespa; Game theory; Financial Economics. |
| Ano: 2004 |
URL: http://purl.umn.edu/56814 |
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| Orsini, Nicola; Rizzuto, Debora; Nante, Nicola. |
| Game theory can be defined as the study of mathematical models of conflict and cooperation between intelligent and rational decision makers (Myerson 1991). Game-theory concepts apply in economy, sociology, biology, and health care, and whenever the actions of several agents (individuals, groups, or any combination of these) are interdependent. We present a new command gamet to represent the extensive form (game tree) and the strategic form (payoff matrix) of a noncooperative game and to identify the solution of a nonzero and zero-sum game through dominant and dominated strategies, iterated elimination of dominated strategies, and Nash equilibrium in pure and fully mixed strategies. Further, gamet can identify the solution of a zero-sum game through maximin... |
| Tipo: Journal Article |
Palavras-chave: Game theory; Nash equilibrium; Payoff matrix; Zero-sum game; Game tree; Research Methods/ Statistical Methods. |
| Ano: 2005 |
URL: http://purl.umn.edu/117525 |
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| Sampaio, Luciano Menezes Bezerra. |
| Fruit production is an activity of great importance in the Brazilian commercial balance and even more in the Northeastern region. Intermediation is a regular practice in the fruit exporting market due to existence of requirements, such as quality certificates, and of internal problems in production and commercialization, such as credit limitations and absence of product standardization. Large companies, cooperatives, associations and NGOs receive products from many small producers and export them together with their own products. In Northeast, it is common that the exporting agent offers contracts to producers that include technical, administrative and legal assistance plus input supply. This paper proposes a model, using the principal-agent approach of... |
| Tipo: Journal Article |
Palavras-chave: Game theory; Small producers; Irrigated fruit production; Exportation; Agribusiness; Q10; Q12; D86. |
| Ano: 2007 |
URL: http://purl.umn.edu/61921 |
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| Lewis, Andrew; Nganje, William E.; Mattson, Jeremy W.; Miljkovic, Dragan; Wilson, William W.. |
| This study provides a framework to value investment strategies to mitigate possible agro-terrorism occurrences in the food supply chain and to determine where these investments would reduce the most risk. This framework is applied to two food sectors that could be at risk: milk and green onions. Stochastic optimization is used to determine the costs and risk premiums of alternative tracking strategies. The real options method along with a portfolio of options, also referred to as the "tomato garden" framework, is used to determine where and when alternative intervention strategies should be implemented to reduce the most risk. Finally, policy implications are derived on the cost-risk tradeoffs, probability of attacks, and containment efforts if there... |
| Tipo: Report |
Palavras-chave: Agro-terrorism; Stochastic optimization; Real options; Game theory; Milk; Green onions; Food Consumption/Nutrition/Food Safety. |
| Ano: 2007 |
URL: http://purl.umn.edu/7630 |
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| Glebe, Thilo W.. |
| This paper analyses how the enlargement of a trade bloc will affect national welfare. We establish a partial equilibrium model of a trade bloc either operating as a monopoly with a competitive fringe or facing a duopolistic game in production taxes/subsidies. Given this framework, we demonstrate how member countries’ welfare effects depend on their trade flow and the market power of the trade bloc. A numerical estimation of the effects of EU enlargement on the major grain crop markets suggests that welfare effects are negligible. Economic reasons are therefore unlikely to be a motivating force for further enlargement. |
| Tipo: Journal Article |
Palavras-chave: Trade bloc; Trade liberalisation; Game theory; European Union; International Relations/Trade; D42; F11; Q17; Q18. |
| Ano: 2009 |
URL: http://purl.umn.edu/58061 |
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| Liu, Na; He, Jixin; Hou, Ning; Gu, Kaiping. |
| As the world's largest carbon resources country with relatively great carbon emission, China in has just started its carbon trade. China is only a passive participant in international carbon trading market, rarely participating in the project of Clean Development Mechanism (CDM). Therefore, trade market of emission permits can be divided into first and second trade markets. During the definition of emission right, we found out that the ways of emission trade at second carbon trade market is the key to the research on carbon trade, which can realize the allocation efficiency and utilization efficiency of resources. Then, feasibility of implementing auction system of emission permits trade in China is analyzed from the aspects of legal protection, technical... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Carbon emission permits; Game theory; Nash Equilibrium; Allocation efficiency; China; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Risk and Uncertainty. |
| Ano: 2009 |
URL: http://purl.umn.edu/56347 |
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| Wood, Peter John. |
| This survey paper examines the problem of achieving global cooperation to reduce greenhouse gas emissions. Contributions to this problem are reviewed from non-cooperative game theory, cooperative game theory, and implementation theory. Solutions to games where players have a continuous choice about how much to pollute, games where players make decisions about treaty participation, and games where players make decisions about treaty ratification, are examined. The implications of linking cooperation on climate change with cooperation on other issues, such as trade, is examined. Cooperative and non-cooperative approaches to coalition formation are investigated in order to examine the behaviour of coalitions cooperating on climate change. One way to achieve... |
| Tipo: Journal Article |
Palavras-chave: Climate change negotiations; Game theory; Implementation theory; Coalition formation; Subgame perfect equilibrium; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/95061 |
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| Chen, Jia-Wei; Qi, Yan-bin. |
| Development status of dairy industry in Sichuan Province, China is analyzed, indicating that how to ensure the high-quality and ecological production of peasant households has become an important issue for the safety and healthy of the masses and the development of dairy industry. Game model is established and the solution for the model is obtained. Based on analyzing the relationship of the interests between the dairy farmer and the company in ecological agriculture, two mixed strategies of Nash equilibrium are obtained. One is that when the probability is equal to , there are no differences between purchasing or not purchasing; if the probability of company purchase is equal to , there are no differences between producing high-quality milk and... |
| Tipo: Journal Article |
Palavras-chave: Game theory; Equilibrium; High quality milking; Moral risk; China; Agribusiness. |
| Ano: 2010 |
URL: http://purl.umn.edu/97625 |
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| Johnson, Martin; Mahe, Louis Adrien Pascal; Roe, Terry L.. |
| A model is developed to quantify the special status of agriculture in the US and the EC trade negotiations. The role of special interests are measured by a policy goals function (PGF) whose weights are estimated for each special interest group. The analysis searches for mutually acceptable, mutually advantageous trade agreements between the US and the EC using a partial equilibrium world trade model coupled with game theory. Results suggest that it is in the best interest of the US (resp. EC) 'for the EC (resp. US) to liberalize whi1e the other follows the status quo policies of 1986. Mutual gains in PGF values to both countries pursuing "large" liberalizations are unlikely to exist, although "small" liberalizations may give rise to "small" mutual gains.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Game theory; Trade liberalization; Trade negotiations; International Relations/Trade. |
| Ano: 1990 |
URL: http://purl.umn.edu/51154 |
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| Registros recuperados: 32 | |
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