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Всего публикаций в данном разделе: 95

все А Б В Г Д Е Ж З И ЙК Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Э Ю Я
5 A B C D E F G H I J K L M N O P Q R S T U V W XY Z

Опубликовано на портале: 13-02-2007
Drew Fudenberg, David Knudsen Levine
Cambridge, MA: MIT Press, 1998, cерия "Economic Learning and Social Evolution", 286 с.
In economics, most noncooperative game theory has focused on equilibrium in games, especially Nash equilibrium and its refinements. The traditional explanation for when and why equilibrium arises is that it results from analysis and introspection by the players in a situation where the rules of the game, the rationality of the players, and the players' payoff functions are all common knowledge. Both conceptually and empirically, this theory has many problems.
In The Theory of Learning in Games Drew Fudenberg and David Levine develop an alternative explanation that equilibrium arises as the long-run outcome of a process in which less than fully rational players grope for optimality over time. The models they explore provide a foundation for equilibrium theory and suggest useful ways for economists to evaluate and modify traditional equilibrium concepts.
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Опубликовано на портале: 30-11-2003
Atanu Ghoshray, Tim Lloyd
This paper brings time series techniques to bear on the relationships between the prices of the principal types of wheat traded internationally. In all, the relationships between eleven wheat prices (categorised by wheat quality, harvest date and port of despatch) are scrutinised to uncover the structure of the wheat market implicit in the behaviour its prices reveal. The statistical evidence supports the notion of a highly integrated market that is segmented according to wheat strength . the principal determinant of end-use. Three segments are identified: a market for "strong" (bread-making) wheat, another for "weak" (confectionary products- making) wheat and a third for medium strength wheat suitable for unleavened breads and noodles. Whilst informative, market integration - detected by cointegration among prices . is not altogether surprising, yet the presence of cointegration implies a causal structure, which is of more cogent interest. Among a number of complementary techniques, linkages are uncovered using an innovative concept of irreducible cointegration vectors (Davidson 1998, Barassi et al 2001) which provides new evidence on price linkages. Statistical evidence is robust and not test-dependent. Specifically, we find a dominant price leader in each sub-market. In terms of its pricing, the EU is found to play a passive role in the world market, confirming a widely held view.
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Опубликовано на портале: 24-04-2007
Calvin S. Hall, Gardner Lindsey
Перев.: Игорь Борисович Гриншпун (ориг.: Русский)
Москва: ЭКСМО-Пресс, 2000, 720 с.
Книга - настоящий научный бестселлер, один из лучших, зарекомендовавших себя учебников психологии. Он представляет собой краткое, но исчерпывающее и доступно изложенное освещение и анализ основных теорий личности, составляющих "золотой фонд" зарубежной психологии XX века.
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Опубликовано на портале: 22-09-2004
Robert E. Hall, Marc Lieberman
Mason, OH: Souht-Western Thomson Learning, 2002
Departing from the encyclopedic nature of most Principles texts, which encourages students to simply memorize concepts and see economics as a collection of unrelated terms, formulas, graphs, and theories, this text provides students with a picture of economics as a unified discipline; a set of interrelated tools and ideas that can be used to look at the world in a different way. This book's concise, less is more approach has been carefully crafted in terms of both content and supporting pedagogy to keep students focused on learning and applying the central ideas used in economic analysis. It uniquely employs a simple methodology throughout to emulate how economists look at problems, and teaches students how to use this same analytical process in developing their own economic analysis skills. Hall/Lieberman's careful focus on core theoretical ideas as well as systematically applying the theoretical tools to interesting real-world questions conveys the message that economics is an integrated, powerful body of knowledge that can be used to address important issues.
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Опубликовано на портале: 30-11-2003
Werner Hediger, Bernard Lehmann
In this article, we investigate welfare economic aspects of multifunctional agriculture, putting emphasis on the provision of rural environmental benefits. The formal analysis shows that the efficiency prices of agricultural and forest land include important amenity and non-use values that exhibit the character of undepletable externalities. Thus, to achieve a socially optimal land allocation these externalities must be internalised. We propose the compensation to agricultural and forest managers according to the marginal external benefit of their land, and a charge-subsidy scheme to improve rural water quality. Altogether, this is consistent with the requirement of optimal land allocation and would not cause additional market distortions. Moreover, it would leave the property right on the land and landscape benefits with the farmers, and assign the right on clean air and water to the consumers.
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Опубликовано на портале: 31-12-2003
Agnar Hegrenes, Anders Ringgaard Kristensen, Gudbrand Lien
Durban, 2003
A model is presented to investigate the optimal economic life cycle of grass leys with winter damage problems in northern Norway and to determine the threshold of winter damage before it is profitable to reseed. A two-level hierarchic Markov process has been constructed using the MLHMP software. The model takes uncertainty concerning yield potential, damage estimation and weather dependent random fluctuations into account. A Kalman filter technique is used for updating of knowledge on yield potential and damage level.

The application of the model is demonstrated using data from two commercial Norwegian farms. Since parameter estimates vary considerably among farms, it is concluded that decision support concerning optimal economic life cycle of grass leys should be done at farm level. The results also show the importance of using a flexible dynamic replacement strategy. Use of the model for a specific farm situation is illustrated.
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Опубликовано на портале: 30-07-2004
From the reviews of the First Edition.
"An interesting, useful, and well-written book on logistic regression models... Hosmer and Lemeshow have used very little mathematics, have presented difficult concepts heuristically and through illustrative examples, and have included references."- Choice

"Well written, clearly organized, and comprehensive... the authors carefully walk the reader through the estimation of interpretation of coefficients from a wide variety of logistic regression models . . . their careful explication of the quantitative re-expression of coefficients from these various models is excellent." - Contemporary Sociology "An extremely well-written book that will certainly prove an invaluable acquisition to the practicing statistician who finds other literature on analysis of discrete data hard to follow or heavily theoretical."-The Statistician In this revised and updated edition of their popular book, David Hosmer and Stanley Lemeshow continue to provide an amazingly accessible introduction to the logistic regression model while incorporating advances of the last decade, including a variety of software packages for the analysis of data sets. Hosmer and Lemeshow extend the discussion from biostatistics and epidemiology to cutting-edge applications in data mining and machine learning, guiding readers step-by-step through the use of modeling techniques for dichotomous data in diverse fields. Ample new topics and expanded discussions of existing material are accompanied by a wealth of real-world examples-with extensive data sets available over the Internet.
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Опубликовано на портале: 30-11-2003
Nancy L. Johnson, Ruth Suarez, Mark Lundy
This paper characterizes and measures the contribution of social capital to the performance of 50 agroenterprises in Colombia. Using qualitative analysis we document the functions that social capital performs within firms. To estimate social capital’s contribution to firm structure and performance, quantitative indicators of firm-level use of social capital are developed based on the number and strength of external relationships that firms maintain. Econometric analysis finds that firm-level returns to relationships are positive and higher than to physical or human capital. The results suggests that while firms can increase their economic performance by investing in social capital, ameliorating the effects of the market failures that lead to use of social relations for business purposes could also improve both equity and efficiency.
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Опубликовано на портале: 29-11-2003
Steen Koekebakker, Gudbrand Lien
Empirical evidence suggests that agricultural futures price movements have fat-tailed distributions and exhibit sudden and unexpected price jumps. There is also evidence that the volatility of futures prices contains a term structure depending on both calendar-time and time to maturity. This paper extends Bates (1991) jump-diffusion option pricing model by including both seasonal and maturity effects in volatility. An in-sample fit to market option prices on wheat futures shows that our model outperforms previous models considered in the literature. A numerical example illustrates the economic significance of our results for option valuation.
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Опубликовано на портале: 29-11-2003
W. Erno Kuiper, Clemens Lutz, Aad van Tilburg
This paper considers vertical price relationships between wholesalers and retailers on five local maize markets in Benin. We show that if the common factor and the long-run disequilibrium error are not explicitly taken into account in testing the channel model, one can easily be wrong about how restrictions on the error-correction structure must be interpreted in terms of economic power in the channel. The empirical results show interesting differences between markets and reveal that retailers play a more prominent role in the price formation process than generally assumed in the literature. Retailers in the two major towns do not allow wholesalers to behave as vertical price leaders, but in the two larger rural centers, wholesalers involved in arbitrage among urban markets are able to influence price formation.
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Опубликовано на портале: 31-08-2003
Jean-Jacques Laffont
Oxford: Oxford University Press, 2002
Laffont here constructs a normative approach to constitutional design using recent developments in contract theory. He treats political economy as the study of the incentive problems created by the delegation of economic policy to self-interested politicians. Treating politicians successively as informed supervisors or residual decision-makers, he characterizes the optimal constitutional responses to the activities of interest groups in various circumstances, as well as the optimal trade-off between flexibility of decision-making and discretion to pursue personal agendas.
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Опубликовано на портале: 01-09-2003
Jean-Jacques Laffont, David Martimort
Princeton: Princeton University Press, 2002
In this book, Jean-Jacques Laffont and David Martimort present the most thorough yet accessible introduction to incentives theory to date. Central to this theory is a simple question as pivotal to modern-day management as it is to economics research: What makes people act in a particular way in an economic or business situation? In seeking an answer, the authors provide the methodological tools to design institutions that can ensure good incentives for economic agents.
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Опубликовано на портале: 14-01-2003
David Laidler
Cheltenham: Edward Elgar, 1997
Money and Macroeconomics is a significant collection of David Laidlers most important papers on the so-called monetarist counter-revolution. This volume contains both published and unpublished examples of his influential contribution, detailing empirical work on the demand for money, the economics of inflation, the foundations of the buffer stock approach to monetary theory, the monetarist critique of new classical economics and issues of economic policy.
David Laidler has also prepared a personal memoir to accompany his volume which gives a revealing account of his academic career and influences, and places each essay in its original intellectual context.
Money and Macroeconomics presents in one volume David Laidlers most important contributions to monetary economics. It will be invaluable to monetary and financial economists as well as policy makers and historians of economic thought.
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Опубликовано на портале: 31-03-2005
Barbara Lampic, Irma Potočnik Slavič
Slovenia is characterised by very specific conditions for agriculture (approx. 80 % of territory defined as LFA), extremely heterogeneous geographic features and therefore also by huge regional divergence – especially in rural areas (representing at least three-quarters of the state’s territory). Heterogeneity, mosaic structure and relatively good preserved environment and traditional patterns are general characteristics of Slovene rural areas and we consider the mentioned as development potential for the vast part of Slovenian rural areas. In the last decade, huge regional disperities have actually arisen. Although the agriculture has lost its importance in economy, the newly proposed Rural Development Programme (for time period 2004 – 2006) is based on agricultural and agri-environment measures and ignores the multifunctional character of rural areas.
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Опубликовано на портале: 30-07-2004
This book presents statistical methods for analysis of the duration of events. The primary focus is on models for single-spell data, events in which individual agents are observed for a single duration. Some attention is also given to multiple-spell data. The first part of the book covers model specification, including both structural and reduced form models and models with and without neglected heterogeneity. The book next deals with likelihood based inference about such models, with sections on full and semiparametric specification. A final section treats graphical and numerical methods of specification testing. This is the first published exposition of current econometric methods for the study of duration data.
"The analysis of transition/duration data is the next frontier beyond the now well-charted area of qualitative choice and limited-dependent variables. Lancaster's book is an excellent travel guide to this relatively unknown but beautiful land where time-series analysis and qualitative choice merge. Even if they do not decide to stay, economists and social scientists will return enriched from a trip under Professor Lancaster's guidance." Geert Ridder, University of Groningen
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