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[ES] La planificación de la distribución espacial en plantas industriales (FLP) es una de las decisiones más importantes en el contexto de la dirección de operaciones, y uno de los problemas de mayor discusión en la literatura científica enmarcada en el campo amplio de la ingeniería industrial. Sin embargo, el uso generalizado del enfoque de solución top-down tradicional, que se inicia con el diseño de la distribución del conjunto de los departamentos o celdas de trabajo que conforman el sistema de producción y prosigue con la distribución detallada al interior de éstos, parte de asunciones poco compatibles con la realidad operacional industrial que implican ciertas limitaciones para su adopción en la práctica. Esto, unido al hecho de que los modelos matemáticos empleados en la generación de alternativas de layout utilizan en su mayoría el coste de manejo de materiales como una función monoobjetivo de carácter cuantitativo, desvirtuando la naturaleza multiobjetiva del problema, acentúa un vacío que genera oportunidades de mejora en la toma de decisiones de planificación del layout en la práctica industrial. En este contexto, esta tesis doctoral, respaldada por un estudio minucioso del estado del arte y el análisis de modelos de optimización matemática de referencia, presenta un marco conceptual para la toma de decisiones de planificación del FLP desde una perspectiva multiobjetivo, y un nuevo modelo de optimización multiobjetivo no lineal entero mixto (MOMINLP) para facilitar la toma de decisiones de distribución espacial en plantas industriales metalmecánicas en entornos de demanda dinámicos mediante un enfoque de planificación bottom-up, teniendo en cuenta criterios cuantitativos y cualitativos. El modelo propuesto, denominado bottom-up mDFLP, considera tres funciones objetivo que pretenden: (1) minimizar el coste total de manejo de materiales y el coste total de reorganización, (2) maximizar el rating de proximidad subjetiva entre departamentos, y (3) maximizar el ratio de utilización de área. El modelo bottom-up mDFLP ha sido validado en una empresa del sector metalmecánico, confirmando un mejor desempeño en los valores de las funciones objetivo respecto a los obtenidos en la distribución en planta actual. / [CA] La planificació de la distribució espacial en plantes industrials (FLP) és una de les decisions més importants en el context de la direcció d'operacions, i un dels problemes de major discussió en la literatura científica emmarcada en el camp ampli de l'enginyeria industrial. No obstant això, l'ús generalitzat de l'enfocament de solució top-down tradicional, que s'inicia amb el disseny de la distribució del conjunt dels departaments o cel·les de treball que conformen el sistema de producció i prossegueix amb la distribució detallada a l'interior d'aquests, part d'assumpcions poc compatibles amb la realitat operacional industrial que impliquen unes certes limitacions per a la seua adopció en la pràctica. Això, unit al fet que els models matemàtics emprats en la generació d'alternatives de layout utilitzen en la seua majoria el cost de maneig de materials com una funció monoobjetivo de caràcter quantitatiu, desvirtuant la naturalesa multiobjectiva del problema, accentua un buit que genera oportunitats de millora en la presa de decisions de planificació del layout en la pràctica industrial. En aquest context, aquesta tesi doctoral, recolzada per un estudi minuciós de l'estat de l'art i l'anàlisi de models d'optimització matemàtica de referència, presenta un marc conceptual per a la presa de decisions de planificació del FLP des d'una perspectiva multiobjectiu, i un nou model d'optimització multiobjectiu no lineal enter mixt (MOMINLP) per a facilitar la presa de decisions de distribució espacial en plantes industrials metallmecàniques en entorns de demanda dinàmics mitjançant un enfocament de planificació bottom-up, tenint en compte criteris quantitatius i qualitatius. El model proposat, denominat bottom-up mDFLP, considera tres funcions objectiu que pretenen: (1) minimitzar el cost total de maneig de materials i el cost total de reorganització, (2) maximitzar el rating de proximitat subjectiva entre departaments, i (3) maximitzar el ràtio d'utilització d'àrea. El model bottom-up mDFLP ha sigut validat en una empresa del sector metallmecànic, confirmant un millor acompliment en els valors de les funcions objectiu respecte als obtinguts en la distribució en planta actual. / [EN] Facility layout planning (FLP) is one of the most critical decisions in operations management and one of the most discussed problems in the scientific literature framed in the broad field of industrial engineering. However, the widespread use of the traditional top-down solution approach, which starts with a block layout design phase and continues with the detailed layout within each work cell making up the production system, is based on assumptions that are not very compatible with the industrial operational reality, which implies certain limitations for its adoption in practice. This issue, together with the fact that the mathematical models used in the generation of layout alternatives mostly use the cost of material handling as a single objective function of a quantitative nature, distorting the multi-objective nature of the problem, accentuates a gap that generates opportunities for improvement in the FLP decision making process in industrial practice. In this context, this doctoral thesis, supported by a thorough study of state of the art and the analysis of benchmark mathematical optimisation models, presents a conceptual framework for FLP planning decision making from a multi-objective perspective and also a new multi-objective mixed-integer non-linear optimisation model (MOMINLP) to facilitate FLP decision making for metal-mechanical industrial plants in dynamic demand environments through a bottom-up planning approach, taking into account quantitative and qualitative criteria. The proposed model, called bottom-up mDFLP, considers three objective functions that aim to: (1) minimising the total material handling cost and the total rearrangement cost, (2) maximising the subjective closeness rating between departments, (3) maximising the area utilisation ratio. The bottom-up mDFLP model has been validated in a company from the metal-mechanical sector, confirming a better performance in the values of the objective functions than those obtained in the current plant layout. / Pérez Gosende, PA. (2022). Enfoque multiobjetivo bottom-up para la planificación dinámica de la distribución espacial en plantas industriales [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/185800 / TESIS

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本文調查年輕世代 (1988 至 1995 年間出生者) 閩南語的變調範域 (Tone Sandhi Domain)，即調群 (Tone Group)。文中以「傳統調群」表文獻記載的變調範域，以「新調群」表本文重新調查的變調範域。論文的研究立基於音韻句法互動之上，並持間接指涉假設觀點，從韻律音韻學的角度出發，認為句法音韻間存有一韻律介面，且調群為此介面上的韻律單位：音韻詞組 (Phonological Phrase, ϕ)。 本文發現新調群與傳統調群的劃分相異。前人研究指出，調群邊界 (#) 標於音韻詞組右端，音韻詞組為一最大投射 XP，且不可為附加語及附著語。新調群僅部分可以傳統音韻詞組界定，其他則對應至句法上的主要語 X，以及附加語最大投射 XP。此外，新調群的邊界為選擇性地出現，具語言變異。新調群出現四種於傳統調群未見的劃分形式：依調群邊界前的語法單位分為主要語 X 類別：(1) V # NP # (2) V # QP # 及附加語 XP 類別： (3) QP # A # (4) AdvP # V #。 本文提出調群新定義，並以優選理論中的 ROE 模型進行分析，提出三個新制約：Align-R (XP-Fnc, ϕ)、ϕ-min 及 Align-R (X-head, ϕ)。Align-R (XP-Fnc, ϕ) 用以區分功能性投射與詞彙性投射；ϕ-min 限制音韻詞組至少含兩音節；Align-R (X-head, ϕ) 解釋調群邊界標註於主要語 X 右端。分析時著重制約 Align-R (XP-Fnc, ϕ) 、ϕ-min 及 Align-R (X-head, ϕ) 與切分線 | (Critical Cut-Off Line) 的關係。整體制約排序為：Ident-T-Rϕ | Align-R (XP-Fnc, ϕ) >> ϕ-min >> Align-R (X-head, ϕ) >> *T >> Align-R (XP-Lex, ϕ)。除信實性制約 Ident-T-Rϕ 之外，其他標記性制約皆列於切分線之下，預測語言變異。 / The goal of this thesis is to explore the tone sandhi domain, tone group (hereafter, TG), of Taiwan Southern Min of younger generation. A corpus is built and analyzed within the framework of Prosodic Theory, a derived theory from the Phonology-Syntax Interface Theory. In the literature, TG boundary # was marked at the right edge of an XP which is neither an adjunct nor a clitic. However, the TG boundary # of younger generation is marked at the right edges of a maximal XP, an adjunctive XP and an X-head. Moreover, language variation is observed in the TG parsing: the presence of TG boundary # is optional. There are four TG parsings not observed in the literature: (1) V # NP # (2) V # QP # (3) QP # A # (4) AdvP # V #. TG is redefined as a Phonological Phrase which syntactically corresponds to a maximal XP, an adjunct XP, an X-head but not to a clitic XP. The four TG parsings are then analyzed with Rank-Ordering Model of EVAL (ROE), a subtheory within the Optimality Theory domain which particularly addresses language variation. According to ROE, constraints on the right side of critical cut-off line participate in the prediction of variation. Three constraints involving in variation are proposed: Align-R (XP-Fnc, ϕ), ϕ-min and Align-R (X-head, ϕ). Align-R (XP-Fnc, ϕ) distinguishes lexical projection and functional projection, ϕ-min requires a Phonological Phrase to be minimally disyllabic, and Align-R (X-head, ϕ) predicts # to occur at the right edge of an X-head. The analysis centers around the three constraints’ relation with the critical cut-off line. The constraint rankings are: Ident-T-Rϕ | Align-R (XP-Fnc, ϕ) >> ϕ-min >> Align-R (X-head, ϕ) >> *T >> Align-R (XP-Lex, ϕ). Except for the faithfulness constraint Ident-T-Rϕ, the other markedness constraints are arranged at the right side of the cut-off line in order to predict language variation.

Comprendre le mode d’existence de l’organisation est certainement l’un des plus grands défis que se sont donnés les chercheurs qui s’intéressent à ce domaine d’étude. La littérature nous présente ainsi plusieurs images, métaphores et perspectives qui, combinées, dressent un portrait hybride de ce type de collectif. Je propose, dans cette thèse, de reconnaître et exploiter ce caractère hybride de l’organisation en partant d’une réflexion centrée sur l'espace. En m’inspirant particulièrement des travaux de la géographe Doreen Massey (1999, 2005), le concept d'espace auquel je souscris est celui d’un espace ouvert et dynamique (qui incorpore le temps), basé sur une relationalité matérielle et hétérogène, supposant des acteurs humains et non humains en interaction. L'espace peut donc être compris comme la coexistence d’ontologies hétérogènes, ce que Massey (2005) nomme une coexistence de trajectoires comme stories-so-far. Il s’agit ici d’une vision performative de l’espace organisationnel qui est constitué dans la relation de trajectoires distinctes qui coexistent, se rencontrent, s’affectent, entrent en conflit ou coopèrent (Massey, 1999). Je postule que pour assurer une certaine continuité et cohérence dans la coexistence de trajectoires hétérogènes, un travail d’alignement et d’ordonnancement est mis à l’oeuvre, et ce, par le suivi d’une trajectoire principale — ce que je nomme une trajectoire scriptée. Suivre cette trajectoire permet ainsi à l’organisation de s’étendre, de se rendre présente dans le temps et dans l’espace, sans pour autant perdre son identité : to be here and there at the same time, now and then at the same place. À partir de cette définition de l’espace, je propose d’« espacer l’organisation », et plus particulièrement d’« espacer » Explora, un programme d’éducation non formelle du gouvernement du Chili visant la diffusion et la valorisation de la science et de la technologie. Cette proposition est double : elle renvoie aux pratiques d’espacements — des pratiques hybrides, collectives et situées — des agents organisationnels (dans ce cas, aux pratiques des agents d’Explora impliqués dans l’organisation d’un projet, celui de la Semaine de la science 2006),mais aussi à une pratique de recherche. « Espacer l’organisation » veut donc dire déployer ces espaces pleins, déplier l’organisation, accroître la série des simultanéités-successions pour ainsi créer plus d’espace-temps. / To understand the organization’s mode of being is certainly one of the most important challenges faced by researchers who are interested in this field of study. The literature presents several images, metaphors and perspectives which, combined, draw up a hybrid portrait of this type of collective. In this dissertation, I propose to recognize and exploit this hybrid character by starting from a reflection on space. Inspired especially by the work of the geographer Doreen Massey (1999, 2005), the concept of space to which I subscribe is that of an open and dynamic space (which incorporates time), based on a material and heterogeneous relationality, which supposes human and nonhuman actors in interaction. Space can thus be understood as the coexistence of heterogeneous ontologies, what Massey (2005) calls a “coexistence of trajectories as stories-so-far”. It is then a performative vision of organizational space which is constructed through the relation of distinct trajectories that coexist, meet, affect each other, enter in conflict or cooperate (Massey, 1999). I argue that to guarantee a certain form of continuity and coherence in the coexistence of heterogeneous trajectories, a work of alignment and ordering is put at work, and this, by the following-up of a main trajectory — what I call a scripted trajectory. By following this trajectory the organization can then extend itself, making itself present in time and space, without loosing its identity: it can be “here and there at the same time, now and then at the same place.” Starting from this definition of space, I propose to “space the organization,” and more specifically to “space” Explora, a non formal educational program of the Chilean government, which aims to diffuse and promote science and technology. Spacing an organization implies a double proposal: it refers to the spacing practices — hybrid, collective and situated practices — enacted by organizational agents (in this case, Explora’s agents implicated in the organization of a project, that of the Science week 2006), but also to a research practice. “Spacing the organization” consists of deploying these full spaces, unfolding the organization, and increasing the series of simultaneities-successions in order to create more space-time.

This thesis deals with the dividing the dictionary entry into several "sub-meanings", i.e. with the sense division, and with the closely related ordering of these "sub-meanings", i.e. with the sense ordering, with the bilingual passive German-Czech dictionary in the centre of interest. This thesis deals shortly also with the discriminating the senses by different means, i.e. with the sense discrimination. With these three subjects chronologically following the lexicographic decisions the matter of equivalence and the understanding of the term of meaning are correlated. In the theoretical part of this thesis the specifics of the sense division and the sense ordering in the monolingual and in the bilingual lexicography are introduced, in the practical part of this thesis the possibilities of the sense division and the sense ordering are exemplified with ten chosen substantive lemmas prepared for the Large German-Czech Academic Dictionary in progress. For every lemma the most suitable arrangement of the lemma is suggested, which is then compared with the corresponding dictionary entry in the source dictionary Duden - Deutsches Universalwörterbuch. The differences between the arrangements of the microstructure illustrate the necessity of the revision and eventual modification of the adopted structure...

Η διατριβή ασχολείται με το αντικείμενο του ελέγχου ορθής λειτουργίας κυκλωμάτων κατά τον οποίο λαμβάνεται υπόψη και η συμπεριφορά ως προς την κατανάλωση ισχύος. Οι τεχνικές που προτείνονται αφορούν α) τη συμπίεση ενός συνόλου δοκιμής σε περιβάλλον ενσωματωμένου ελέγχου με χρήση εξωτερικών ελεγκτών, β) την εμφώλευση διανυσμάτων δοκιμής σε περιβάλλον ενσωματωμένου ελέγχου και γ) τη μείωση της κατανάλωση ισχύς και ενέργειας σε περιβάλλον εξωτερικού ελέγχου. Η συμπίεση των δεδομένων βασίζεται στην παρατήρηση ότι ένα διάνυσμα δοκιμής μπορεί να παραχθεί από το προηγούμενό του με την αντικατάσταση κάποιων τμημάτων του. Μεγαλύτερη συμπίεση επιτυγχάνεται όταν γίνει αναδιαταξή διανυσμάτων και αναδιάταξη των φλιπ-φλοπ της αλυσίδας ανίχνευσης. Αν η αναδιάταξη των φλιπ-φλοπ γίνει με βάση τη συχνότητα αλλαγών κατάστασης γειτονικών φλιπ-φλοπ τότε επιτυγχάνεται και μείωση της κατανάλωσης ισχύος. Όσον αφορά τις τεχνικές ενσωματωμένου αυτοελέγχου, μελετήθηκε το πρόβλημα της εμφώλευσης διανυσμάτων δοκιμής. Προτάθηκαν αποδοτικά κυκλώματα παραγωγής διανυσμάτων δοκιμής βασισμένα σε ολισθητές γραμμικής ανάδρασης και δέντρα πυλών XOR και σε ολισθητές συνδυασμένους με δέντρα πυλών OR. Όταν τα κυκλώματα υπό έλεγχο είναι κανονικής μορφής όπως είναι οι αθροιστές του αριθμητικού συστήματος υπολοίπων, προτείνονται κυκλώματα που εκμεταλεύονται την κανονική μορφή του συνόλου δοκιμής. Τέλος, σε περιβάλλον εξωτερικού ελέγχου, προτείνονται μέθοδοι αναδιάταξης διανυσμάτων δοκιμής με επανάληψη διανυσμάτων που μειώνουν την κατανάλωση. Οι μέθοδοι αυτές βασίζονται στην επιλογή των κατάλληλων ελάχιστων γεννητικών δέντρων και στη μετατροπή των κατάλληλων επαναλαμβανόμενων διανυσμάτων επιτυγχάνοντας σημαντική μείωση στην κατανάλωση ενέργειας, στη μέση και στη μέγιστη κατανάλωση ισχύος. / The dissertation is focused on VLSI testing while power dissipation is also taken into account. The techniques proposed are: a) test data compression in an embedded test environment, b) test set embedding in a built-in self test environment and c) reduction in test power dissipation in an external testing environment. Test data compression is based on the observation that a test vector can be produced from the previous one by replacing some parts of the previous vector with new parts of the current vector. The compression is even higher when the test vectors are ordered and scan cell reordering is also performed. If the scan cell reordering is based on a transition frequency approach then reduction in power dissipation is also achieved. In the case of built-in self test the problem of test set embedding was studied and efficient circuits based on linear feedback shift registers combined with XOR trees or shift registers combined with OR trees were proposed. If the circuits have a regular structure, such as the structure of residue number system adders, then a circuit taking advantage of the regular form of the test set can be derived. Finally, when external testing is considered, we proposed test vector ordering with vector repetition methods, which reduce power consumption. The methods are based on the selection of the appropriate minimum spanning trees and through the modification of the repeated vectors they achieve considerable savings in energy, average and peak power dissipation.

Comprendre le mode d’existence de l’organisation est certainement l’un des plus grands défis que se sont donnés les chercheurs qui s’intéressent à ce domaine d’étude. La littérature nous présente ainsi plusieurs images, métaphores et perspectives qui, combinées, dressent un portrait hybride de ce type de collectif. Je propose, dans cette thèse, de reconnaître et exploiter ce caractère hybride de l’organisation en partant d’une réflexion centrée sur l'espace. En m’inspirant particulièrement des travaux de la géographe Doreen Massey (1999, 2005), le concept d'espace auquel je souscris est celui d’un espace ouvert et dynamique (qui incorpore le temps), basé sur une relationalité matérielle et hétérogène, supposant des acteurs humains et non humains en interaction. L'espace peut donc être compris comme la coexistence d’ontologies hétérogènes, ce que Massey (2005) nomme une coexistence de trajectoires comme stories-so-far. Il s’agit ici d’une vision performative de l’espace organisationnel qui est constitué dans la relation de trajectoires distinctes qui coexistent, se rencontrent, s’affectent, entrent en conflit ou coopèrent (Massey, 1999). Je postule que pour assurer une certaine continuité et cohérence dans la coexistence de trajectoires hétérogènes, un travail d’alignement et d’ordonnancement est mis à l’oeuvre, et ce, par le suivi d’une trajectoire principale — ce que je nomme une trajectoire scriptée. Suivre cette trajectoire permet ainsi à l’organisation de s’étendre, de se rendre présente dans le temps et dans l’espace, sans pour autant perdre son identité : to be here and there at the same time, now and then at the same place. À partir de cette définition de l’espace, je propose d’« espacer l’organisation », et plus particulièrement d’« espacer » Explora, un programme d’éducation non formelle du gouvernement du Chili visant la diffusion et la valorisation de la science et de la technologie. Cette proposition est double : elle renvoie aux pratiques d’espacements — des pratiques hybrides, collectives et situées — des agents organisationnels (dans ce cas, aux pratiques des agents d’Explora impliqués dans l’organisation d’un projet, celui de la Semaine de la science 2006),mais aussi à une pratique de recherche. « Espacer l’organisation » veut donc dire déployer ces espaces pleins, déplier l’organisation, accroître la série des simultanéités-successions pour ainsi créer plus d’espace-temps. / To understand the organization’s mode of being is certainly one of the most important challenges faced by researchers who are interested in this field of study. The literature presents several images, metaphors and perspectives which, combined, draw up a hybrid portrait of this type of collective. In this dissertation, I propose to recognize and exploit this hybrid character by starting from a reflection on space. Inspired especially by the work of the geographer Doreen Massey (1999, 2005), the concept of space to which I subscribe is that of an open and dynamic space (which incorporates time), based on a material and heterogeneous relationality, which supposes human and nonhuman actors in interaction. Space can thus be understood as the coexistence of heterogeneous ontologies, what Massey (2005) calls a “coexistence of trajectories as stories-so-far”. It is then a performative vision of organizational space which is constructed through the relation of distinct trajectories that coexist, meet, affect each other, enter in conflict or cooperate (Massey, 1999). I argue that to guarantee a certain form of continuity and coherence in the coexistence of heterogeneous trajectories, a work of alignment and ordering is put at work, and this, by the following-up of a main trajectory — what I call a scripted trajectory. By following this trajectory the organization can then extend itself, making itself present in time and space, without loosing its identity: it can be “here and there at the same time, now and then at the same place.” Starting from this definition of space, I propose to “space the organization,” and more specifically to “space” Explora, a non formal educational program of the Chilean government, which aims to diffuse and promote science and technology. Spacing an organization implies a double proposal: it refers to the spacing practices — hybrid, collective and situated practices — enacted by organizational agents (in this case, Explora’s agents implicated in the organization of a project, that of the Science week 2006), but also to a research practice. “Spacing the organization” consists of deploying these full spaces, unfolding the organization, and increasing the series of simultaneities-successions in order to create more space-time.

Within the last decades low-dimensional frustrated quantum spin systems have attracted great interest in the field of modern research. In these systems a competition of various magnetic interactions takes place, leading to an energetically degenerated magnetic ground state, and thus to the occurrence of exotic, unconventional physical properties at low temperatures. This thesis focuses on the quasi one-dimensional frustrated spin chain system linarite, PbCuSO4(OH)2. In this compound the basic building blocks are CuO4 plaquettes which are connected to each other along one crystallographic direction, analogue to a chain. The frustration in linarite is established due to the competition between the magnetic interactions. The nearest-neighbor magnetic spins are coupled ferromagnetically along the chain via a coupling constant J1, while the next-nearest neighbors are coupled antiferromagnetically via a coupling constant J2. For this configuration it is not possible to satisfy all magnetic couplings simultaneously, hence the system is magnetically frustrated. In this work, comprehensive thermodynamic and nuclear magnetic resonance (NMR) studies demonstrate that linarite is one of the richest and most fascinating compounds in the class of low-dimensional frustrated magnets. By means of susceptibility, magnetization, specific heat, magnetocaloric effect, magnetostriction, and thermal-expansion measurements a rich magnetic phase diagram could be mapped out below a temperature of 2.8 K. The phase diagram contains five different magnetic regions/phases for an external magnetic field pointing along the chain direction. Based on the thermodynamic studies it was possible to calculate the exchange integrals within the frustrated J1-J2 model and extensions of it by using various theoretical approaches. The magnetic microscopic nature of the different long-range magnetic phases present in linarite were investigated by NMR measurements and by collaborative neutron scattering experiments. The ground state (phase I) is identified as an incommensurate elliptical helical structure. Via a theoretical modelling the 1H-NMR spectrum of the ground state could be explained, revealing a rearrangement of the zero-field structure in an external magnetic field of 2.0 T used for the NMR studies. By further increasing the external field the system undergoes a complex spin flop transition in two steps (phase I - phase III - phase IV). In phase III a phase separation takes place where one part of the spins form a circular spiral structure while the remaining fraction form a simple antiferromagnetic structure. In phase IV the remaining circular spiral structure vanishes, so that all spins collectively form the antiferromagnetic collinear phase. The most peculiar physical properties studied in this thesis take place in region V at high fields, showing only tiny features in the thermodynamic properties. The magnetic spins in region V form a sine-wave modulated spin-density structure as identified via NMR and neutron investigations. It is discussed whether region V is related to a multipolar phase or if the spin-density wave structure could possibly coexist with such a phase.

Submitted by David Turchick (davidturchick@fgvmail.br) on 2011-03-28T21:58:20Z No. of bitstreams: 1 tese_dout_david.pdf: 1028717 bytes, checksum: ebae39f4145a0e8d55de18fe3b119f10 (MD5) / Approved for entry into archive by Andrea Virginio Machado(andrea.machado@fgv.br) on 2011-03-29T11:47:06Z (GMT) No. of bitstreams: 1 tese_dout_david.pdf: 1028717 bytes, checksum: ebae39f4145a0e8d55de18fe3b119f10 (MD5) / Made available in DSpace on 2011-03-31T17:21:14Z (GMT). No. of bitstreams: 1 tese_dout_david.pdf: 1028717 bytes, checksum: ebae39f4145a0e8d55de18fe3b119f10 (MD5) Previous issue date: 2010-09-24 / This thesis collects four papers on monetary economics written under the supervision of Professor Rubens Penha Cysne. The first of these papers assesses the bias occuring in welfare-cost-of-inflation measures due to failing to take into consideration the substitution potential of interest-bearing monies such as bank deposits. The second one tackles the theoretical issue of comparing the generality of the money-in-the-utility-function- and the shopping-time models by studying the properties of the demand curves they generate. The third of these works revisits a classic paper by Stanley Fischer on the correlation between the growth rate of money supply and the rate of capital accumulation on the transition path. Finally, the fourth one concerns the relative standing of each one of six measures of the welfare cost of inflation (one of which is new) with respect to the other five, and an estimate of the maximum relative error one can incur by choosing to employ a particular welfare measure in place of the others. / Esta tese é uma coleção de quatro artigos em economia monetária escritos sob a supervisão do Professor Rubens Penha Cysne. O primeiro desses artigos calcula o viés presente em medidas do custo de bem-estar da inflação devido a não se levar em conta o potencial substitutivo de moedas que rendem juros, como depósitos bancários.[1] O segundo se concentra na questão teórica de se comparar os escopos dos tradicionais modelos money-in-the-utility-function e shopping-time através do estudo das propriedades das curvas de demanda que eles geram.[2] O terceiro desses trabalhos revisita um artigo clássico de Stanley Fischer sobre a correlação entre a taxa de crescimento da oferta monetária e a taxa de acumulação de capital no caminho de transição.[3] Finalmente, o quarto diz respeito à posição relativa de cada uma de seis medidas do custo de bem-estar da inflação (uma das quais é nova) em relação às outras cinco, e uma estimativa do erro relativo máximo em que o pesquisador pode incorrer devido a sua escolha de empregar uma dessas medidas qualquer vis-à-vis as outras.