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Author: Finn Christensen Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Consider an economic model whose equilibrium can be represented as the fixed point of a system of differentiable equations. Using the theory of B-matrices, I show that comparative statics are well-behaved if the interactions between the equations are not too large, and the negative interactions are not too varied. When there are only positive interactions, for example when strategic complements prevail in a strategic setting, I prove a version of Samuleson's (1947) Correspondence Principle in that equilibrium is nondecreasing for any positive parameter shock if and only if equilibrium is exponentially stable under discrete time best reply dynamics. If there are only negative interactions, like when strategic substitutes prevail in a game theoretic context, I use the theory of inverse M-matrices to significantly relax Dixit's (1986) conditions under which comparative statics are well-behaved. For every comparative statics result I show that if the conditions apply globally then equilibrium is unique. Applications are provided to differentiated products Cournot oligopoly, market demand with interdependent preferences, and games on fixed networks.
Author: Finn Christensen Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
Consider an economic model whose equilibrium can be represented as the fixed point of a system of differentiable equations. Using the theory of B-matrices, I show that comparative statics are well-behaved if the interactions between the equations are not too large, and the negative interactions are not too varied. When there are only positive interactions, for example when strategic complements prevail in a strategic setting, I prove a version of Samuleson's (1947) Correspondence Principle in that equilibrium is nondecreasing for any positive parameter shock if and only if equilibrium is exponentially stable under discrete time best reply dynamics. If there are only negative interactions, like when strategic substitutes prevail in a game theoretic context, I use the theory of inverse M-matrices to significantly relax Dixit's (1986) conditions under which comparative statics are well-behaved. For every comparative statics result I show that if the conditions apply globally then equilibrium is unique. Applications are provided to differentiated products Cournot oligopoly, market demand with interdependent preferences, and games on fixed networks.
Author: Douglas Hale Publisher: Princeton University Press ISBN: 1400865034 Category : Mathematics Languages : en Pages : 253
Book Description
The authors, leading researchers in the fields of mathematical economics and methodology, present the first comprehensive synthesis of literature on qualitative and other nonparametric techniques, which are important elements of comparative statics and stability analysis in economic theory. The topics covered show how to assess the comparative statics and stability of economic models without a precise quantitative knowledge of all model components. Applications of the analysis range from determining refutable hypotheses from theory to auditing the solutions of large, computer-based systems. This book discusses in depth the methodology involved in a nonparametric analysis of many neoclassical economic models. Constituting a virtually self-contained manual on such analysis, it provides detailed derivation of necessary and sufficient conditions for the existence of restrictive comparative statics and stability results for a range of specified models. Further, algorithms for applying certain of these conditions are given, with examples, as well as the underlying mathematical approach taken. A large body of research is unified covering issues that have been dealt with piecemeal in scattered but important journal articles by the authors and others. The book will prove invaluable to mathematical economists, mathematicians specializing in matrix or graph theory, applied economists working with large-scale economic models, and advanced students of economics. Originally published in 1999. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Author: Luis C. Corchon Publisher: Springer Science & Business Media ISBN: 3662044986 Category : Business & Economics Languages : en Pages : 186
Book Description
The ambition of the theory of imperfectly competitive markets is to explain the working of markets in which the issue of strategic interaction among firms is central. Our analysis of this problem will be based on equilibrium concepts borrowed from Game Theory. This research program arises several questions on its feasibility like the empirical relevance of the results, the substantial theoretical insights obtained in this way, etc. Unfortunately, most of these questions can not be answered in the short run. This book is written in the hope that this research strategy is meaningful, but about its final success no body can tell. Another important question is if simpler models could deliver the essential insights offered by the theory of imperfectly competitive mar kets. This Introduction will be devoted to argue that, currently, there is no alternative to the approach presented in this book. Consider the following fact: A square inch of soil in the Explanada of Ali cante (located in front of the sea, right in the middle of downtown) cost several times more than a square inch of soil in San Vicente del Raspeig (located sev eral miles toward the interior of the peninsula). l How can we explain such a thing? First notice that because of the large quantity of possible traders involved in this market, we can safely assume that any agent has to accept the market price, i. e. is a price-taker.
Author: Donald Brown Publisher: Springer Science & Business Media ISBN: 3540765913 Category : Business & Economics Languages : en Pages : 204
Book Description
This monograph presents a general equilibrium methodology for microeconomic policy analysis. It is intended to serve as an alternative to the now classical, axiomatic general equilibrium theory as exposited in Debreu`s Theory of Value (1959) or Arrow and Hahn`s General Competitive Analysis (1971). The monograph consists of several essays written over the last decade. It also contains an appendix by Charles Steinhorn on the elements of O-minimal structures.
Author: W. D. A. Bryant Publisher: World Scientific ISBN: 9812818340 Category : Business & Economics Languages : en Pages : 492
Book Description
"This book focuses on the foundations of general equilibrium theory, more specifically on the existence, uniqueness, stability, optimality and comparative static properties of equilibrium states. It also explores the question of the empirical relevance of equilibrium states. It highlights a series of 'relationship conditions' which are essential for the existence of equilibrium, but appear in optimality results." -- PUBLISHER WEBSITE.
Author: Romans Pancs Publisher: MIT Press ISBN: 0262552892 Category : Business & Economics Languages : en Pages : 345
Book Description
Economic concepts and techniques presented through a series of "big questions," models that show how to pose a questions rigorously and work toward an answer. This book helps readers master economic concepts and techniques by tackling fundamental economic and political questions through a series of models. It is organized around a sequence of “big questions,” among them: When do markets help translate individuals' uncoordinated, selfish actions into outcomes that are best for all? Do markets change people, and, if so, for worse or better? Translated into the language of modern economics, do Marx's ideas have merit? Why is there so much income inequality? Or is there too little? The arguments are in the theorem-proof format, distinguishing results derived in the context of fully specified models from educated speculation. Readers will learn how to pose a question rigorously and how to work toward an answer, and to appreciate that even (especially!) the broadest and most ambitious questions call for a model. The goal of the book is not to indoctrinate but to show readers how to reason toward their own conclusions. The first chapter, on the Walrasian model of general equilibrium, serves as the prerequisite for the rest of the book. The remaining chapters cover less conventional topics, including the morality of markets; matching theory; Marxism, socialism, and the resilience of markets; a formalization of Kant's categorical imperative; unintended consequences of policy design; and theories of justice. The book can be used as a textbook for advanced undergraduate or graduate students or as a resource for researchers in disciplines that draw on normative economics.
Author: Pascal Bridel Publisher: Routledge ISBN: 1136719822 Category : Business & Economics Languages : en Pages : 169
Book Description
2010 marks the hundredth anniversary of the death of Léon Walras, the brilliant originator and first formaliser of general equilibrium theory – one of the pillars of modern economic theory. In advancing much derided practical solutions Walras also displayed more concern for the problems of living in a second best world than is common in modern pure theories of the invisible hand, efficient market hypothesis, DSGE macroeconomics or the thinking of some contemporary free market admirers all based on general equilibrium theory. This book brings contributions from the likes of Kenneth Arrow, Alan Kirman, Richard Posner, Amartya Sen and Robert Solow to share their thoughts and reflections on the theoretical heritage of Léon Walras. Some authors reminisce on the part they played in the development of modern general economics theory; others reflect on the crucial part played by general equilibrium in the development of macroeconomics, microeconomics, growth theory, welfare economics and the theory of justice; others still complain about the wrong path economic theory took under the influence of post 1945 developments in general equilibrium theory.
Author: Steven G Medema Publisher: Routledge ISBN: 1134665466 Category : Business & Economics Languages : en Pages : 371
Book Description
The history of economic thought has always attracted some of the brightest minds in the discipline. These chroniclers of development have helped form our current views, and it is no surprise that many among them have been at the forefront of new movements in the history of ideas. This notable collection summarizes the work of these key historians of economics and attempts to quantify their impact. Some of the writers covered, such as Friedrich Hayek and Joan Robinson, are already assured of their place among the greatest economists of the twentieth century, but the collection also stresses the influence of those still active in shaping our perceptions - including Mark Blaug, Samuel Hollander and Donald Winch. Written by an impressive roster of contributors, many of whom are themselves well-known in the history of economic thought, this key book features writings from John Creedy, Roger Blackhouse and Neil De Marchi, as well as the editors of the collection as a whole, Warren J. Samuels and Steven Medema.
Author: Finn Christensen
Author: Finn Christensen
Author: Donald J. Brown
Author: Douglas Hale
Author: Luis C. Corchon
Author: Donald Brown
Author: W. D. A. Bryant
Author: Romans Pancs
Author: Pascal Bridel
Author: Christina M. Shannon
Author: Steven G Medema