Cette thèse est composée de trois articles indépendants qui ont pour trait commun d’analyser le comportement d’investisseurs et de firmes en situation de concurrence imparfaite. Nous considérons d’abord un modèle de marché financier à la Kyle (1985) où les investisseurs peuvent produire soit un signal (fondamental) sur la valeur d’un actif risqué, soit un signal (non-fondamental) sur la demande aléatoire des noise traders. Nous montrons que réduire le coût du signal non-fondamental détériore l’efficience informationnelle du prix du titre et,sous certaines conditions, le bien-être des noise traders. Nous étendons ensuite le modèle au cas où les investisseurs non-fondamentalistes soumettent des ordres à cours limité. Leur activité s’apparente alors à du “front running”. Par ce biais, nous enrichissons nos résultats et montrons que l’effet potentiellement néfaste de l’accès à l’information non-fondamentale persiste.Nous considérons ensuite un marché à la Kyle (1985) où des agents non informés échangent pour un motif de partage de risque avec des investisseurs répartis sur un réseau.Ces derniers partagent leurs signaux avec leurs contacts, ce qui formalise une meilleure diffusion de l’information. Nous évaluons alors l’effet de cette hypothèse sur deux critères: le profit spéculatif et l’espérance d’utilité des agents non informés qui mesure l’efficacité du partage de risque sur le marché. Nous montrons que l’ajout du réseau peut simultanément améliorer ces deux critères ainsi que l’efficience informationnelle du prix. Un résultat original qui ne peut pas être obtenu sans l’ajout du réseau. Enfin, nous caractérisons la coopération graduelle entre deux firmes concurrentes de tailles différentes incapables de contracter et dont les contributions sont irréversibles. Nous montrons que l’asymétrie entre les deux firmes ralentit fortement le processus de collaboration,ce qui souligne l’importance des arrangements contractuels dans certaines situations. Nous montrons aussi qu’un renforcement de la concurrence entre les deux firmes peut nuire au bien-être social en réduisant leur capacité à collaborer. / This thesis contains three distinct papers related to the behavior of investors or firms acting under imperfect competition. First, we consider a Kyle’s (1985) model where investors can produce either a (fundamental) signal on the value of the risky asset, or a (non fundamental)signal on the forth coming demand from noise traders. We show that reducing the cost of the non-fundamental signal worsens price informativeness as well as the welfare of noise traders under some conditions. Then, we extend the model by allowing non fundamental traders to submit limit orders. Their activity is then analogous to front running. By this mean, we enrich our results and show that the potentially detrimental effect of non-fundamental information still pertains. Then, we consider a market à la Kyle (1985) where uninformed hedgers trade for risk sharing purposes with investors located on a network, who share their signal with their“contacts”. This hypothesis formalizes a better diffusion of information. We evaluate its effect on speculative gains and hedgers’ expected utility which depends on the risk sharing role of the market. We show that the introduction of the network might simultaneously improve these two welfare measures as well as price informativeness. An original result that cannot be obtained otherwise. Finally, we consider a contribution game between two competitors of different sizes. We obtain the value of their (irreversible) contributions during each period of the game. We show that the asymmetry between the two firms strongly slowers the collaboration process,high lighting the importance of contractual arrangements in some circumstances. Also, we obtain that increasing competition might be detrimental to social welfare, because it harms the ability of the two firms to set up a mutually beneficial process of collaboration.

This dissertation examines the history of the relationship between light/color as an artistic medium and music. Looking at four artist-inventors from the eighteenth through to the mid-twentieth centuries, I consider how new arts of light and color arose from music, relied on music, and also distanced themselves from it. Drawing chiefly on published and unpublished primary sources, this dissertation compares artists’ and inventors’ conceptions of what this new art should be as it was continuously reimagined and reconstituted in their works, discourses, and technologies. I suggest a running tension throughout this history between the aspiration for a new and even autonomous art and its reliance on the music. In Chapter 1, I investigate the work of the eighteenth-century French Jesuit monk Louis Bertrand Castel, who in 1725 proposed the first ever instrument for color music, his clavecin oculaire or ocular harpsichord. I note conflicting tendencies in his thought as he suggested two different avenues for color music: as a form of multimedia, and as a separate, silent medium capable of giving pleasure on its own. The next chapter turns to the color organ and color music of the late nineteenth-century inventor and artist Alexander Wallace Rimington. Drawing on contemporaneous theories of color, reception of Rimington’s performances, and the inventor’s own writings, I locate Rimington’s organ at the intersection of a continuing tradition of analogizing music and color and late nineteenth-century attempts to theorize color independently and systematically. I then demonstrate how Rimington’s desire to use color music as means of improving color perception can be understood as part of a larger debates about sensing color and color education around the turn of the twentieth century. Chapters 3 considers Mary Hallock Greenewalt’s instrument, the sarabet, and her art form, nourathar¸ while the final chapter looks at Thomas Wilfred’s (usually silent) light art, lumia. I suggest that Greenewalt and Wilfred’s relationship to music is a source of tension in their work, as they attempted to extricate and purify light art into an autonomous art form but display various forms of musical influence.

Il nostro lavoro nasce dall’esigenza di voler delineare i confini tra metafora e similitudine al fine di distinguere il campo d’indagine di ognuna delle due figure. Il rapporto analogico che le caratterizza ha provocato nel tempo un’associazione costante tra i due procedimenti retorici che tendono, pertanto, ad essere sovrapposti. La nostra tesi si propone di dimostrare che seppur si tratti di due figure affini, similitudine e metafora si realizzano attraverso processi stilistici diversi. Questo studio presenta due grandi parti: una prima parte teorica e una seconda parte applicativa. La prima consta di tre capitoli: nel primo abbiamo esaminato le diverse definizioni che, nel corso degli anni, sono state assegnate alla similitudine e alla metafora; nel secondo, abbiamo presentato le teorie che, nel differenziare le due figure, hanno confuso, a nostro avviso, i loro campi d’indagine; nel terzo capitolo abbiamo analizzato e descritto il procedimento comparativo. Nella seconda parte, abbiamo applicato alla raccolta poetica Gaspard de la Nuit di Aloysius Bertrand, le analisi teoriche presentate nella prima parte del nostro lavoro. Per ogni testo poetico è stato affrontato uno studio di tipo linguistico e retorico: abbiamo analizzato le varie tipologie di similitudini e di metafora presenti in ciascun componimento. / The purpose of this work has its origins in the necessity of defining the boundary between metaphor and simile in order to demarcate the analytical fields corresponding to the two figures. The analogical relationship that characterizes them has provoked over the course of time a constant association between the two rhetorical procedures which have thus tended to become overlapped. This thesis intends to demonstrate that even though treating of related figures, simile and metaphor are produced by means of different stylistic procedures. This study is divided into two main parts: the first theoretical and the second of practical application. The first part consists of three chapters: in the first are examined the diverse definitions that have been assigned over the course of time to simile and to metaphor; the second presents theories which, in differentiating the two figures, have only served to confuse the fields of inquiry; in the third chapter the comparative method is analyzed and described. In the second part of the thesis the theoretical analyses presented in the first part of the work are applied to Gaspard de la Nuit, a collection of poetry by Aloysius Bertrand. Each text is subjected to a linguistic and a rhetorical analysis, thus analyzing the various typologies of similes and metaphors present in each of the compositions.

Analisa-se na presente dissertação a teoria das descrições de Bertrand Russell, bem como a crítica que é feita por Peter Strawson a essa teoria. A fim de contextualizar a teoria das descrições, analisa-se primeiramente a teoria do atomismo platônico de George Moore, teoria que configura o primeiro momento da revolta contra o idealismo de cunho hegeliano que dominava a filosofia inglesa no final do século XIX. A seguir, expõe-se em linhas gerais a filosofia de Bertrand Russell dos primeiros anos do século XX, a qual poderia ser chamada de “logicismo”, na medida em que tinha como preocupação teórica central demonstrar a redutibilidade de toda a matemática pura a algumas poucas noções lógicas fundamentais e indefiníveis. Após isso, analisa-se então a inovação filosófica consubstanciada pela teoria das descrições de Russell, mostrando como ela lida com importantes problemas lógicos e filosóficos. Sem dúvida, a teoria das descrições de Russell foi uma das teorias filosóficas mais significativas do século XX. Posteriormente, apresenta-se a crítica de Peter Strawson à teoria das descrições, bem como a réplica de Russell. Conclui-se a dissertação com uma breve avaliação a respeito de três pontos fundamentais de divergência entre Russell e Strawson: o papel da linguagem ordinária na análise filosófica, o valor de verdade de proposições expressas por sentenças do tipo “O atual Rei da França é calvo”, e a questão dos nomes próprios. / In the present dissertation, Bertrand Russell’s theory of descriptions is analyzed, as well as Peter Strawson’s criticism of this theory. In order to better contextualize the theory of descriptions, George Moore’s theory of Platonic Atomism is firstly analyzed. This theory represents the first step of the revolt against the Hegelian influenced idealism that dominated English philosophy at the end of the 19th century. After that, Bertrand Russell’s early philosophy is outlined in its main features, that is, his philosophy from the first years of the 20th century, which may be called “logicism”, since it had, as its main theoretical purpose, the demonstration that all pure mathematics could be reduced to a few fundamental and indefinable logical notions. Subsequently, the philosophical innovation represented by Russell’s theory of descriptions is analyzed, and the manner in which it deals with important logical and philosophical problems is exhibited. One can say that Russell’s theory of descriptions is one of the most significant philosophical theories of the 20th century. After that, Peter Strawson’s criticism of the theory of descriptions is presented, as well as Russell’s rebuttal of it. The dissertation ends with a brief assessment of three fundamental points of contention between Russell and Strawson: the role of ordinary language in philosophical analysis, the truth value of propositions expressed by sentences such as “The present King of France is bald”, and the question regarding proper names.

Analisa-se na presente dissertação a teoria das descrições de Bertrand Russell, bem como a crítica que é feita por Peter Strawson a essa teoria. A fim de contextualizar a teoria das descrições, analisa-se primeiramente a teoria do atomismo platônico de George Moore, teoria que configura o primeiro momento da revolta contra o idealismo de cunho hegeliano que dominava a filosofia inglesa no final do século XIX. A seguir, expõe-se em linhas gerais a filosofia de Bertrand Russell dos primeiros anos do século XX, a qual poderia ser chamada de “logicismo”, na medida em que tinha como preocupação teórica central demonstrar a redutibilidade de toda a matemática pura a algumas poucas noções lógicas fundamentais e indefiníveis. Após isso, analisa-se então a inovação filosófica consubstanciada pela teoria das descrições de Russell, mostrando como ela lida com importantes problemas lógicos e filosóficos. Sem dúvida, a teoria das descrições de Russell foi uma das teorias filosóficas mais significativas do século XX. Posteriormente, apresenta-se a crítica de Peter Strawson à teoria das descrições, bem como a réplica de Russell. Conclui-se a dissertação com uma breve avaliação a respeito de três pontos fundamentais de divergência entre Russell e Strawson: o papel da linguagem ordinária na análise filosófica, o valor de verdade de proposições expressas por sentenças do tipo “O atual Rei da França é calvo”, e a questão dos nomes próprios. / In the present dissertation, Bertrand Russell’s theory of descriptions is analyzed, as well as Peter Strawson’s criticism of this theory. In order to better contextualize the theory of descriptions, George Moore’s theory of Platonic Atomism is firstly analyzed. This theory represents the first step of the revolt against the Hegelian influenced idealism that dominated English philosophy at the end of the 19th century. After that, Bertrand Russell’s early philosophy is outlined in its main features, that is, his philosophy from the first years of the 20th century, which may be called “logicism”, since it had, as its main theoretical purpose, the demonstration that all pure mathematics could be reduced to a few fundamental and indefinable logical notions. Subsequently, the philosophical innovation represented by Russell’s theory of descriptions is analyzed, and the manner in which it deals with important logical and philosophical problems is exhibited. One can say that Russell’s theory of descriptions is one of the most significant philosophical theories of the 20th century. After that, Peter Strawson’s criticism of the theory of descriptions is presented, as well as Russell’s rebuttal of it. The dissertation ends with a brief assessment of three fundamental points of contention between Russell and Strawson: the role of ordinary language in philosophical analysis, the truth value of propositions expressed by sentences such as “The present King of France is bald”, and the question regarding proper names.

Analisa-se na presente dissertação a teoria das descrições de Bertrand Russell, bem como a crítica que é feita por Peter Strawson a essa teoria. A fim de contextualizar a teoria das descrições, analisa-se primeiramente a teoria do atomismo platônico de George Moore, teoria que configura o primeiro momento da revolta contra o idealismo de cunho hegeliano que dominava a filosofia inglesa no final do século XIX. A seguir, expõe-se em linhas gerais a filosofia de Bertrand Russell dos primeiros anos do século XX, a qual poderia ser chamada de “logicismo”, na medida em que tinha como preocupação teórica central demonstrar a redutibilidade de toda a matemática pura a algumas poucas noções lógicas fundamentais e indefiníveis. Após isso, analisa-se então a inovação filosófica consubstanciada pela teoria das descrições de Russell, mostrando como ela lida com importantes problemas lógicos e filosóficos. Sem dúvida, a teoria das descrições de Russell foi uma das teorias filosóficas mais significativas do século XX. Posteriormente, apresenta-se a crítica de Peter Strawson à teoria das descrições, bem como a réplica de Russell. Conclui-se a dissertação com uma breve avaliação a respeito de três pontos fundamentais de divergência entre Russell e Strawson: o papel da linguagem ordinária na análise filosófica, o valor de verdade de proposições expressas por sentenças do tipo “O atual Rei da França é calvo”, e a questão dos nomes próprios. / In the present dissertation, Bertrand Russell’s theory of descriptions is analyzed, as well as Peter Strawson’s criticism of this theory. In order to better contextualize the theory of descriptions, George Moore’s theory of Platonic Atomism is firstly analyzed. This theory represents the first step of the revolt against the Hegelian influenced idealism that dominated English philosophy at the end of the 19th century. After that, Bertrand Russell’s early philosophy is outlined in its main features, that is, his philosophy from the first years of the 20th century, which may be called “logicism”, since it had, as its main theoretical purpose, the demonstration that all pure mathematics could be reduced to a few fundamental and indefinable logical notions. Subsequently, the philosophical innovation represented by Russell’s theory of descriptions is analyzed, and the manner in which it deals with important logical and philosophical problems is exhibited. One can say that Russell’s theory of descriptions is one of the most significant philosophical theories of the 20th century. After that, Peter Strawson’s criticism of the theory of descriptions is presented, as well as Russell’s rebuttal of it. The dissertation ends with a brief assessment of three fundamental points of contention between Russell and Strawson: the role of ordinary language in philosophical analysis, the truth value of propositions expressed by sentences such as “The present King of France is bald”, and the question regarding proper names.

As the 29-year Duvalier dictatorship ended in 1986, the emergence of Mouvement Lavalas out of the grassroots organizations of Haiti's poor majority, and election of charismatic priest Jean-Bertrand Aristide in 1990, challenged efforts by Haitian political parties and the U.S. foreign policy establishment to contain the parameters of Haiti's democratic transition. This dissertation examines the politics of Lavalas to determine whether it held a particular conception of democracy that explains the movement's antagonistic relationship with the political parties and U.S. democracy promoters. Using the qualitative methodology of process-tracing outlined in the works of Paul F. Steinberg (2004) and Tulia G. Falleti (2006), this study analyzes primary and secondary sources associated with Aristide and the grassroots organizations across the period of contested democratization from 1986 to 1991, with emphasis on four critical junctures: 1) the rule of the Conseil National du Gouvernement; 2) the government of Leslie Manigat; 3) the military regimes of Henri Namphy and Prosper Avril; and 4) Aristide's 8 months in power before being overthrown on September 29, 1991. This study concludes that there were systematic differences in how Lavalas pursued democracy in Haiti, as contrasted to the political parties and U.S. foreign policy-makers. Evidence indicates that while Lavalas placed emphasis on popular mobilization to challenge Haiti's legacy of authoritarianism, the political parties and U.S. democracy promoters emphasized processes of negotiation and compromise with Haiti's anti-democratic forces. Lavalas was rooted in the long historic struggle of the country's poor masses to, not simply establish procedural democracy, what noted political scientist Robert Dahl calls polyarchy, but to expand the parameters of politics to guarantee the right of all Haitians to participate directly in the process of governing, in order to share more equitably in the distribution of national resources, in what critical scholar William I. Robinson calls "popular democracy."

This trans-disciplinary and [trans-modal] dissertation practices the work of inclusive design that students of music (do or do not) encounter as part of their music education. Using inclusive design practices focused on the domains of the written word, the auditory-aural artifact, and the artistic-visual artifact, this work reflects upon three schools of pedagogy and philosophy within the broader academy, primarily not found in the musical academy. The schools of humanism, liberation, and transformation are considered as objects-subjects of reflection utilizing four authors (James Cone, Paolo Freire, Jack Mezirow, and Bertrand Russell); this work is rooted in the practice of critical reflection as understood through the lens of the author Stephen Brookfield. The authors’ assets were collected through analog and digital booksellers and analog and digital library available databases; the author consumed accessibility and accommodative digital programs to aid the researcher. Three themes emerged as follows: one, humanity has largely been excluded from the study of music education, resulting in an intensely human invention often resulting in inhumane practices and theories; two, transformation is a fundamental component of musical education, in that it studies humans transforming both words and music, as well as subsequent performances being transformations of what was to what can be (again); and, three, liberation is the implicit goal at the center of musical education, in that being a music educator is an attempt to liberate the musicianship innate to the human existence from the oppression the body has consumed. Each of these themes written as separate chapters closes with a pedagogy-philosophy of the chapter’s theme. The dissertation concludes with a reflection on music education in light of the pedagogies and philosophies examined. Keywords: Music, ethnography, reflection, philosophy, pedagogy, Humanity, liberation, transformation

重商主義時期“獎勵出口重課進口”的對外貿政策，及產業革命後生產力的擴張，使世界範圍內的傾銷大規模形成；二十世紀七○年代以來，「傾銷」已普遍存在於國際貿易之中，而對於「反傾銷」立法和實踐亦進展迅速，從關稅暨貿易總協定成立以來，對於「反傾銷」的立法、修訂一直是談判內容的主要議題。 本文的目的在探討在產品不完全替代下，面對國外持續性傾銷時，若廠商分別從事Cournot數量及Bertrand價格競爭時，如何課徴反傾銷稅？結果發現若廠商進行數量競爭時則：當本國與外國傾銷品相互替代率相同及本國產品對國外傾銷品之替代率大於國外傾銷品對本國產品之替代率時，本國政府可在社會福利最大化下制定反傾銷稅率。若進行價格競爭時則：本國政府無法依社會福利最大之反傾銷稅率制定反傾銷稅率。 / The mercantilist emphasis on expanding exports while restricting imports, coupled with the expansion of productivity seen following the industrial revolution, led to the proliferation of dumping trade practices around the world. “Dumping” has been a formally-recognized and widespread phenomenon in global trade since the 1970s. Against this, national governments have also been quick to implement countervailing laws and legislation. Anti-dumping legislation has been at the fore of international trade discussions since the General Agreement on Trade and Tariffs (GATT) was established. This paper addresses the issue of how countervailing duties may be most effectively assessed in situations where a national product that is not completely substitutable by import competitors suffers sustained competition from imports dumped on the market. To achieve this objective, our research examines the effects on competition that result from the manufacturer of the national product adopting, respectively, Cournot volume and Bertrand pricing strategies. The result shows that, when a volume strategy is adopted, home government imposition of countervailing duties will be able to maximize social benefit when either domestic and imported (dumped) products share a similar substitutability ratio or the substitutability ratio of the domestic product is greater than that of the imported competition. When a pricing strategy is adopted, the government is, conversely, not in a position to impose a countervailing duty that will maximize social benefit.

Ce mémoire a pour objectif principal l'analyse du concept de métalangage tel qu'il s'est développé en logique mathématique. L'introduction et la conclusion mises à part, chaque chapitre porte sur un auteur -logicien, mathématicien ou philosophe ayant contribué de manière significative à l'évolution de ce concept. Ces auteurs sont, en ordre de présentation, Gottlob Frege, Bertrand Russell, Ludwig Wittgenstein, David Hilbert, Kurt Godel et Alfed Tarski. Puisque la notion de métalangage s'est développée avec la formalisation progressive de la logique, une attention particulière est accordée à l'émergence des systèmes formels et à leur présentation. Trois périodes se dessinent dans la genèse de cette notion. Une première, que j'appelle « pré-météthéorique », où l'intervention d'une théorie externe au langage formel est rejetée catégoriquement, mais où certaines notions métathéoriques sont implicitement tracées. Une seconde, dite « hilbertienne », qui marque l'entrée en jeu de la métamathématique et qui consacre le métalangage dans l'étude des mathématiques, quoiqu'avec des moyens limités. Et une troisième, dite « tarskienne », où la notion moderne de métalangage est exposée. Par ailleurs, j'effectue une analyse détaillée de la preuve que Godel donne de son second théorème d'incomplétude où je prétends qu'il commet une erreur conceptuelle entre langage et métalangage. Enfin, en conclusion, j'explore une conception fondationnelle de la logique compatible avec l'étude métathéorique. ______________________________________________________________________________ MOTS-CLÉS DE L’AUTEUR : Métalangage, Logique, Philosophie, Métamathématique, Godel, Tarski.