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91	Exchange Graphs via Quiver Mutation Warkentin, Matthias 02 October 2014 (has links) (PDF) Inspired by Happel's question, whether the exchange graph and the simplicial complex of tilting modules over a quiver algebra are independent from the multiplicities of multiple arrows in the quiver, we study quantitative aspects of Fomin and Zelevinsky's quiver mutation rule. Our results turn out to be very useful in the mutation-infinite case for understanding combinatorial structures as the cluster exchange graph or the simplicial complex of tilting modules, which are governed by quiver mutation. Using a class of quivers we call forks we can show that any such quiver yields a tree in the exchange graph. This allows us to provide a good global description of the exchange graphs of arbitrary mutation-infinite quivers. In particular we show that the exchange graph of an acyclic quiver is a tree if (and in fact only if) any two vertices are connected by at least two arrows. Furthermore we give classification results for the simplicial complexes and thereby obtain a partial positive answer to Happel's question. Another consequence of our findings is a confirmation of Unger's conjecture about the infinite number of components of the tilting exchange graph in all but finitely many cases. Finally we generalise and conceptualise our results by introducing what we call "polynomial quivers", stating several conjectures about "polynomial quiver mutation", and giving proofs in special cases. Köchermutation Austauschgraph Baum Cluster-Algebra Cluster-Komplex Kippmodul simplizialer Komplex Polynomköcher Astgabel mutations-unendlich Mehrfachpfeil quiver mutation exchange graph tree cluster algebra cluster complex tilting module simplicial complex polynomial quiver fork mutation-infinite multiple arrow ddc:512 ddc:514 Kombinatorik Darstellungstheorie Simplizialer Komplex Graph Baum
92	O debate de Amartya Sen com Kenneth Arrow e John Rawls e a abordagem das capacidades / The Amartya Sen s debate with Kenneth Arrow and John Rawls and the capability approach Beltrame, Bruno 19 May 2009 (has links) Made available in DSpace on 2016-04-26T20:48:55Z (GMT). No. of bitstreams: 1 Bruno Beltrame.pdf: 550537 bytes, checksum: dd98c2c17868e3f8b2d425a2f8ed1be8 (MD5) Previous issue date: 2009-05-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The aim of this dissertation is to inquire in what sense it is reasonable to locate in Kenneth Arrow s social choice theory and in John Rawls theory of justice the two main theoretical roots of Amartya Sen s capability approach. It will be argued that Arrow s social choice theory had the role of revealing the main deficiencies of the welfare economics theory. Thus, Arrow s analysis points the limitations to be fulfilled in order to arrive at satisfactory theory of social choice indicating, in this sense, the paths to be pursued. In the same manner, it is argued that Ralws theory of justice provided important elements that inspirated certain ethical positions present in Amartya Sen s thought, which appear in his approach to the problem of social choice. To conclude, the main features of the capability approach that can be directly associated with these two theoretical origins are exposed, and it is argued that Sen s theory simultaneously solves the deficiencies pointed by him in the theoretical structure of Arrow s social choice and embodies, even though in a modified way, elements of Rawls thought / O objetivo dessa dissertação é investigar em que sentido é pertinente localizar na teoria da escolha social de Kenneth Arrow e na teoria da justiça de John Rawls as duas principais raízes teóricas da abordagem das capacidades de Amartya Sen. Argumentar-se-á que a teoria da escolha social de Arrow cumpriu o papel de explicitar as deficiências da teoria econômica do bem-estar. Desse modo, as análises de Arrow apontam as limitações a serem superadas para se chegar a uma teoria satisfatória da escolha social indicando em certa medida rumos a serem seguidos. Da mesma maneira argumenta-se que a teoria da justiça de Rawls forneceu elementos importantes que inspiraram certos posicionamentos éticos evidentes no pensamento de Amartya Sen e que se refletem em suas análises da escolha social. Por fim são apresentadas as principais características da abordagem das capacidades que podem ser diretamente associados a estas duas origens teóricas, e será argumentado que a teoria de Sen ao mesmo tempo soluciona as deficiências apontadas por ele na estrutura teórica da escolha social de Arrow e incorpora, ainda que de forma modificada, elementos presentes no pensamento de Rawls Abordagem das capacidades Teoria da escolha social Teoria da Justiça Sen, Amartya Kumar -- 1933- Arrow, Kenneth Joseph -- 1921- Rawls, John -- 1921-2002 Economia de bem-estar Escolha social Justica distributiva Capability approach Welfare economics Social choice theory Theory of justice Distributive justice
93	Advances and Applications of Experimental Measures to Test Behavioral Saving Theories and a Method to Increase Efficiency in Binary and Multiple Treatment Assignment Schneider, Sebastian Olivier 24 November 2017 (has links) No description available. 330 Treatment Assignment Experiment Multiple Treatment Arms Treatment Allocation Stata Software Rerandomization Field Experiment Binary Treatment Assignment Precautionary Saving Prudence Loss Aversion Non-parametric utility elicitation Utility interpolation Utility Smoothing Intensity Measure of Characteristics Kimball measure of prudence Experimental elicitation of preferences Bogota Development Power MSE Mean Squared Error Optimal Design RCT Randomized Controlled Trial Risk Aversion Arrow-Pratt measure of prudence Household Saving Income Uncertainty Wirtschaftswissenschaften (PPN621567140)
94	Exchange Graphs via Quiver Mutation Warkentin, Matthias 11 June 2014 (has links) Inspired by Happel's question, whether the exchange graph and the simplicial complex of tilting modules over a quiver algebra are independent from the multiplicities of multiple arrows in the quiver, we study quantitative aspects of Fomin and Zelevinsky's quiver mutation rule. Our results turn out to be very useful in the mutation-infinite case for understanding combinatorial structures as the cluster exchange graph or the simplicial complex of tilting modules, which are governed by quiver mutation. Using a class of quivers we call forks we can show that any such quiver yields a tree in the exchange graph. This allows us to provide a good global description of the exchange graphs of arbitrary mutation-infinite quivers. In particular we show that the exchange graph of an acyclic quiver is a tree if (and in fact only if) any two vertices are connected by at least two arrows. Furthermore we give classification results for the simplicial complexes and thereby obtain a partial positive answer to Happel's question. Another consequence of our findings is a confirmation of Unger's conjecture about the infinite number of components of the tilting exchange graph in all but finitely many cases. Finally we generalise and conceptualise our results by introducing what we call "polynomial quivers", stating several conjectures about "polynomial quiver mutation", and giving proofs in special cases. info:eu-repo/classification/ddc/512 ddc:512 info:eu-repo/classification/ddc/514 ddc:514
95	Advertising to the elite : the role of innovation of fine art in advertising in the development of the advertising industry Brown, Margaret E. 12 1900 (has links) Indiana University-Purdue University Indianapolis (IUPUI) / This study explores the intersection of the developments in the growing advertising, railroad, and automotive sectors of the U.S. economy. It examines the latter two sectors’ advertising to the elite by focusing on how industries that targeted the luxury market used fine art to emphasize and underscore the exceptionalism of that high-end market compared with the mass market. It does so by looking at the transition from using art as a decorative component unrelated to the product to using art specifically designed to advertise a product or experience. In the literature, advertising history has been delineated rather narrowly as the history of advertising to the mass consumer or as the history of advertising a specific type of product. This work broadens the focus in advertising history to show that luxury advertisers, as a sub-category of advertisers, developed particular advertising strategies, which recognized and exploited the relationship between their respective service or product, and a consciously selected audience for their respective advertisements. It shows that high art became a differentiating characteristic of advertising strategies aimed at the social elite market. This work also proposes the need for adding a specific timeline for the development of luxury advertising to the broad, more generally known outline of advertising history. Advertising History Luxury Railroad Art Automobile Pierce-Arrow automobile Consumers -- United States -- History
96	The Social Construction of Economic Man: The Genesis, Spread, Impact and Institutionalisation of Economic Ideas Mackinnon, Lauchlan A. K. Unknown Date (has links) The present thesis is concerned with the genesis, diffusion, impact and institutionalisation of economic ideas. Despite Keynes's oft-cited comments to the effect that 'the ideas of economists and political philosophers, both when they are right and when they are wrong, are more powerful than is commonly understood'(Keynes 1936: 383), and the highly visible impact of economic ideas (for example Keynesian economics, Monetarism, or economic ideas regarding deregulation and antitrust issues) on the economic system, economists have done little to systematically explore the spread and impact of economic ideas. In fact, with only a few notable exceptions, the majority of scholarly work concerning the spread and impact of economic ideas has been developed outside of the economics literature, for example in the political institutionalist literature in the social sciences. The present thesis addresses the current lack of attention to the spread and impact of economic ideas by economists by drawing on the political institutionalist, sociological, and psychology of creativity literatures to develop a framework in which the genesis, spread, impact and institutionalisation of economic ideas may be understood. To articulate the dissemination and impact of economic ideas within economics, I consider as a case study the evolution of economists' conception of the economic agent - "homo oeconomicus." I argue that the intellectual milieu or paradigm of economics is 'socially constructed' in a specific sense, namely: (i) economic ideas are created or modified by particular individuals; (ii) economic ideas are disseminated (iii) certain economic ideas are accepted by economists and (iv) economic ideas become institutionalised into the paradigm or milieu of economics. Economic ideas are, of course, disseminated not only within economics to fellow economists, but are also disseminated externally to economic policy makers and business leaders who can - and often do - take economic ideas into account when formulating policy and building economic institutions. Important economic institutions are thereby socially constructed, in the general sense proposed by Berger and Luckmann (1966). But how exactly do economic ideas enter into this process of social construction of economic institutions? Drawing from and building on structure/agency theory (e.g. Berger and Luckmann 1966; Bourdieu 1977; Bhaskar 1979/1998, 1989; Bourdieu 1990; Lawson 1997, 2003) in the wider social sciences, I provide a framework for understanding how economic ideas enter into the process of social construction of economic institutions. Finally, I take up a methodological question: if economic ideas are disseminated, and if economic ideas have a real and constitutive impact on the economic system being modelled, does 'economic science' then accurately and objectively model an independently existing economic reality, unchanged by economic theory, or does economic theory have an interdependent and 'reflexive' relationship with economic reality, as economic reality co-exists with, is shaped by, and also shapes economic theory? I argue the latter, and consider the implications for evaluating in what sense economic science is, in fact, a science in the classical sense. The thesis makes original contributions to understanding the genesis of economic ideas in the psychological creative work processes of economists; understanding the ontological location of economic ideas in the economic system; articulating the social construction of economic ideas; and highlighting the importance of the spread of economic ideas to economic practice and economic methodology. 410401 Design Theory 349901 Political Economy 370000 Studies in Human Society 340302 History of Economic Thought 349900 Other Economics 410402 Design Innovation 360201 Public Policy 360000 Policy and Political Science 380100 Psychology 360100 Political Science 360200 Policy and Administration 370101 Social Theory 370102 Social Policy and Planning 340100 Economic Theory genesis spread diffusion impact institutionalisation economic ideas idea ideation psychology of creativity Wallas Wertheimer stage model productive thinking creative creativity process economic economics sociology social methodology methodological self-altering self-fulfilling self-denying prophecy belief reflexive reflexivity institution institutionalise institutionalised social construction Berger Luckmann Bhaskar critical realism Lawson Bordieu habitus field spread impact ideation ideational structure social structure action creativity creative economists sociology philosophy of science homo economicus homo oeconomicus economic man economic agent rational economic man man lucas critique Goodhart's law Keynes Marx Mill Hayek Hicks Samuelson Walras Jevons Arrow Debreu Samuelson Merton sociology of economics sociology of scientific knowledge SSK Holton prediction control reflexive prediction reflexivity Whitley Mackie canonization Henshel Grunberg Modigliani Morgenstern Lucas Muth Simon Blyth Hall Sikkink Hira Hood institutionalize institutionalized socialise socialisation internalise internalisation internalization socialization behaviour behavior Thomas theorem expectations stage model productive thinking evolution

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