[Alexandre Alberto da Rocha Serpa Pinto]

Donateur : Révoil, Georges (1852-1894)

Employment risk, unemployment insurance and search strategies: a disaggregated equilibrium approach with application to the Swiss labour market in the 1990-ies

The Organization of the Thesis The remainder of the thesis comprises five chapters and a conclusion. The next chapter formalizes the envisioned theory into a tractable model. Section 2.2 presents a formal description of the model economy: the individual heterogeneity, the individual objective, the UI setting, the population dynamics and the equilibrium. The welfare and efficiency criteria for qualifying various equilibrium outcomes are proposed in section 2.3. The fourth section shows how the model-generated information can be computed. Chapter 3 transposes the model from chapter 2 in conditions that enable its use in the analysis of individual labor market strategies and their implications for the labor market equilibrium. In section 3.2 the Swiss labor market data sets, stylized facts, and the UI system are presented. The third section outlines and motivates the parameterization method. In section 3.4 the model's replication ability is evaluated and some aspects of the parameter choice are discussed. Numerical solution issues can be found in the appendix. Chapter 4 examines the determinants of search-strategic behavior in the model economy and its implications for the labor market aggregates. In section 4.2, the unemployment duration distribution is examined and related to search strategies. Section 4.3 shows how the search- strategic behavior is influenced by the UI eligibility and section 4.4 how it is determined by individual heterogeneity. The composition effects generated by search strategies in labor market aggregates are examined in section 4.5. The last section evaluates the model's replication of empirical unemployment escape frequencies reported in Sheldon [67]. Chapter 5 applies the model economy to examine the effects on the labor market equilibrium of shocks to the labor market risk structure, to the deep underlying labor market structure and to the UI setting. Section 5.2 examines the effects of the labor market risk structure on the labor market equilibrium and the labor market strategic behavior. The effects of alterations in the labor market deep economic structural parameters, i.e. individual preferences and production technology, are shown in Section 5.3. Finally, the UI setting impacts on the labor market are studied in Section 5.4. This section also evaluates the role of the UI authority monitoring and the differences in the Way changes in the replacement rate and the UI benefit duration affect the labor market. In chapter 6 the model economy is applied in counterfactual experiments to assess several aspects of the Swiss labor market movements in the nineties. Section 6.2 examines the two equilibria characterizing the Swiss labor market in the nineties, the " growth" equilibrium with a "moderate" UI regime and the "recession" equilibrium with a more "generous" UI. Section 6.3 evaluates the isolated effects of the structural shocks, while the isolated effects of the UI reforms are analyzed in section 6.4. Particular dimensions of the UI reforms, the duration, replacement rate and the tax rate effects, are studied in section 6.5, while labor market equilibria without benefits are evaluated in section 6.6. In section 6.7 the structural and institutional interactions that may act as unemployment amplifiers are discussed in view of the obtained results. A welfare analysis based on individual welfare in different structural and UI settings is presented in the eighth section. Finally, the results are related to more favorable unemployment trends after 1997. The conclusion evaluates the features embodied in the model economy with respect to the resulting model dynamics to derive lessons from the model design." The thesis ends by proposing guidelines for future improvements of the model and directions for further research.

Mito versus retórica sofística. La dimensión mágica de la palabra en Platón

Como la música, la palabra posee -según Platón- una dimensión mágica que la hace capaz de fascinar (kelein) y encantar(epaidein) al alma que la escucha. La eficacia de la retórica sofística reside ahí, pero dicha retórica vincula al alma con el nivel deser inferior de las sombras y de las imágenes. Existe, sin embargo, otro uso mágico de la palabra y otro empleo -positivo- dela retórica: en los diálogos de transición y madurez Platón presenta en los mitos escatológicos un uso de la palabra en el queésta actúa como imagen (eikon) de un nivel superior del ser, imagen que con su belleza seduce al alma, obtiene su asentimiento(pistis) y la moviliza en la dirección de lo ontológicamente superior, supliendo así la falta de una "razón demostrativa" y colmandocon la belleza de sus imágenes el "peligro" que la adhesión comporta.

Sediment Control in Bridge Waterways, February 1990

The objective of this study was to develop guidelines for use of the Iowa Vanes technique for sediment control in bridge waterways. Iowa Vanes are small flow-training structures (foils) designed to modify the near-bed flow pattern and redistribute flow and sediment transport within the channel cross section. The structures are installed at an angleof attack of 15 - 25' with the flow, and their initial height is 0.2 - 0.5 times water depth at design stage. The vanes function by generating secondary circulation in the flow. The circulation alters magnitude and direction of the bed shear stress and causes a reduction in velocity and sediment transport in the vane controlled area. As a result, the river bed aggrades in the vane controlled area and degrades outside. This report summarizes the basic theory, describes results of laboratory and field tests, and presents the resulting design procedure. Design graphs have been developed based on the theory. The graphs are entered with basic flow variables and desired bed topography. The output is vane layout and design. The procedure is illustrated with two numerical examples prepared with data that are typical for many rivers in Iowa and the midwest. The report also discusses vane material. In most applications, the vane height will be between 30% and 50% of bankfull flow depth and the vane length will be two to three times vane height. The vanes will be placed in arrays along the bank of the river. Each array will contain two or more vanes. The vanes in an array will be spaced laterally a distance of two to three times vane height. The streamwise spacing between the arrays will be 15 to 30 times vane height, and the vane-to-bank distance will be three to four times vane height. The study also show that the first (most upstream) array in the vane system must be located a distance of at least three array spacings upstream from the bridge, and there must be at least three arrays in the system for it to be effective at and downstream from the third array.

Huono-osaisuus pääkaupunkiseudulla 1980- ja 1990-luvulla - käännekohta kaupunkiseudun kehityksessä?

Abstract: Distribution of the underpriviledged in the metropolitan area of Helsinki in the 1980ś and the 1990ś - turn point in the development?

Política curricular no Estado de São Paulo nos anos 1980 e 1990

Este texto apresenta um estudo sobre a política curricular implementada no Estado de São Paulo nas décadas de 1980 e 1990 para as primeiras séries do ensino fundamental. Examina o currículo prescrito cotejando-o com os contextos práticos de desenvolvimento do currículo. A pesquisa revela que a política curricular desse período articulou-se fortemente com a produção acadêmica em educação. Ressalta ainda a continuidade na política de produção de materiais de orientação curricular nos últimos 20 anos, buscando difundir e tornar hegemônico um pensamento pedagógico inovador. Também verifica que esses materiais circularam de diferentes formas na rede de ensino e foram apropriados de maneira seletiva pelos professores que adotaram, sobretudo, as indicações práticas.

Chemistry in Catalonia 1990-1995

The seven-year period studied here differs very little from the sixyear period described in the previous Report (1990-1995). Sustained growth was observed in almost all the indicators used to evaluate the resources invested and the scientific results obtained

Chemistry in Catalonia 1990-1995

The seven-year period studied here differs very little from the sixyear period described in the previous Report (1990-1995). Sustained growth was observed in almost all the indicators used to evaluate the resources invested and the scientific results obtained

Análise das citações das dissertações de mestrado e teses de doutorado em saúde pública (1990-1994): estudo exploratório

Parte de análise de dissertações de mestrado e teses de doutorado defendidas, de 1990 a 1994, nos cursos de pós-graduação em saúde pública da Escola Nacional de Saúde Pública da Fundação Oswaldo Cruz (ENSP/Fiocruz), Faculdade de Saúde Pública da Universidade de São Paulo (FSP/USP) e Instituto de Medicina Social da Universidade Estadual do Rio de Janeiro (IMS/UERJ), visando a detectar aspectos referentes às características dos documentos citados, como subsídios para estabelecimento de indicadores necessários à avaliação da produção científica brasileira no campo da saúde pública. O conjunto das citações amostradas (6 019) de 266 dissertações de mestrado e 84 teses de doutorado revelou que os artigos de periódicos contribuíram com maior número de citações (46,7%); o percentual de livros foi mais representativo para as teses de doutorado; a maior concentração dos documentos citados encontra-se no conjunto publicado de 6 a 10 anos da defesa da dissertação/tese; o idioma português predominou nas citações (49,3%) e o inglês para os artigos de periódicos; os alunos valeram-se mais de dissertações/teses de outras instituições do que das escolas que freqüentaram.

A produção de conhecimento arquivístico: perspectivas internacionais e o caso brasileiro (1990-1995)

As transformações em curso na produção e uso da informação vêm promovendo a emergência de novas possibilidades na gestão da informação arquivística, na configuração da arquivologia como campo de conhecimento e na atuação do arquivista. No plano internacional, estas tendências são identificadas em variadas escolas de pensamento arquivístico. Pesquisa realizada a partir de artigos publicados no Brasil, no período 1990-1995, sugere demandas para a ampliação e difusão do conhecimento na área, em consonância com as tendências observadas internacionalmente.