Repositório RCAAP

NOLASCO, Edgar Cézar. Clarice Lispector e José de Alencar: uma saudade política da tradição. Revista de Letras, Fortaleza, v. 1, n. 29, pt. 2, p. 26-30, 2009

FARIA , João Roberto. Alencar dramaturgo: uma apresentação. Revista de Letras, Fortaleza, v.1, n. 29, pt.2, p. 54-61, 2009.

This research seeks to evaluate the technical efficiency of municipal per capita spending on education, health, and safety for municipalities cearenses, covering the year 2005. For this, it uses the methodology of Data Envelopment Analysis (DEA), oriented input and constant returns to scale, because they want to achieve results aimed to reduce public spending and keep the level of efficiency in service delivery to Ceará community. Accordingly, we can say that this empirical exercise to estimate the demand on technical efficiency, the efficiency scale as well as rank the cities analyzed according to these measures and, moreover, indicate that the municipalities are considered as benchmark in each model. The results shows that the model that adds inputs and products of education services, health, safety exhibit 55% of the counties on the border of relative efficiency. Furthermore, the specific models of Health, Education and Safety show a low technical efficiency in public social spending. The study concludes that there are some technical inefficiency regarding public spending municipal Ceará with health, education and security.

The political cycles’ perception is very intuitive, and, therefore, it is a well studied phenomenon. Among the theories developed there are four strands, arranged between the criteria of voter’s rationality and politician’s behavior, namely: the traditional opportunistic political cycle and the rational opportunistic one, as well as the traditional partisan political cycle and the rational partisan one. The political business cycles, however, may occur with combined features, like the political cycles ideologically motivated (partisan cycles) with some characteristics of opportunistic cycles. The political budget cycles, framed as the rational opportunistic type, are prioritized in this study, because it is believed, due to its simplicity of operation and the fact that democracy is a process still young, to be the ones most likely to occur in Brazil and, consequently, in Ceará. The proposed models’ intention was to evidence the opportunistic behavior of Ceará state’s governors in the period from 1986 to 2006, externalized by cyclical movements of the budgetary execution. The data analysis confirmed that the governors showed, in general, opportunistic behavior on the budgetary execution.

A abordagem schumpeteriana de crescimento econômico é explicada pela dotação inicial de capital humano, uma vez que é através dele que se forma a capacidade de inovação dos países e a difusão tecnológica dos países líderes para os seguidores. Nelson e Phelps (1966) descrevem o crescimento econômico como resultado do estoque de capital humano que influencia a capacidade de inovação de um país, acelerando o processo de catching up em relação aos países mais avançados. Na concepção de Romer (1990), o crescimento é comandado pelo progresso tecnológico que resulta de decisões intencionais dos agentes que buscam maximizar lucros. O objetivo deste artigo, de acordo com estas linhas de pensamento, é verificar empiricamente a influência do capital humano no crescimento econômico através de seus efeitos sobre o crescimento do produto, via difusão tecnológica. Na análise empírica utilizam-se a teoria da fronteira estocástica de produção e o índice de produtividade total de Malmqüist. Este índice é decomposto nos seus componentes de variação de eficiência técnica e variação tecnológica. O componente de variação tecnológica é então utilizado para a verificação das abordagens de Romer e Nelson-Phelps.

Human capital is recognised as a key factor of growth in the economic literature. According to the neoclassical approach, human capital is to be considered as an aditional input in production function. The process of growth is explained by its accumulation. Objective of this paper is to estimate the contribution of the human capital to the process of growth in a sample of 68 countries observed over the period 1960-1990, and separeted according to its development level. The empirical analysis is performed using specification through the Mincerian production function. The results obtained show that the data support the Mincerian approach to modelling of human capital.

This paper examines the aggregate productivity performance and discusses the economic growth experience in Latin America. A translog stochastic frontier is fitted with inefficiency effects to a panel of 19 Latin American countries for the period 1961 to 1990. Estimate productivity growth is decomposed into two components: technological progress and efficiency change. We use Malmquist Index to calculate total productivity factor (TFP) change. Applying international data sets, this study aims to: (1) examine the contribution of productivity to economic growth in Latin America, (2) investigate the sources of technical inefficiency, and (3) shed some light on the perfomance among Latin America economies. With this framework we show that total productivity factor perfomance was the main reason for low growth of Latin America.

This paper examines the aggregate productivity perfomance to a sample of 75 countries observed over the period 1961-1990. A translog stochastic frontier production function is fitted with inefficiency effects. The Malmquist index is applied and the rate of total productivity of factors growth can be explicitly decomposed into a measure of efficiency change and the rate of technological progress. Results are reported both in form of growth rates and measures of relative productivity levels. In each case related labor productivity measures and capital per worker ratio evolutions are analysed. Among the topics covered are the productivity slowdown, the low growth of Latin America and the bimodality of the distribution of relative productivity levels.

Changes in demand for modern inputs such as tractors, implements and fertilizers, by farmers, for lhe period 1970-1985 were studied. Descriptive and table analysis of lhe data were made. The results indicated a small increase in lhe rale of input uses in lhe region. The State of Bahia had lhe higher rale of increase as compare to other states. Suggestions for policy makers were also made.

Tem como objetivo básico analisar o desempenho recente da economia cearense em face das ações implementadas nas áreas das finanças públicas, mobilização de recursos para investimento e atração de indústrias. No campo econômico, o Ceará apresentou considerável avanço no período 1990/96. A renda per capita cresceu, melhorando a posição relativa do Estado frente ao Nordeste e ao Brasil. O ajuste fiscal e o equilíbrio das contas públicas constituíram aspectos relevantes para o dinamismo econômico observado. Constatou-se que a ocorrência de valores significantes de margens de autofinanciamento em todos os anos, a partir de 1990, permitiu ao governo viabilizar financeiramente um amplo programa plurianual de investimentos conhecido como programas estruturantes. De outra parte, o equilíbrio financeiro possibilitou a implantação de um engenhoso sistema de incentivos fiscais — Programa de Incentivo ao Funcionamento de Empresas (PROVIN), estimulando a instalação de novas empresas no Estado. O número de empresas instaladas e a instalar, em Fortaleza e no Interior, respectivos montantes de investimento e número de empregos gerados atestam o êxito do programa. A importância desses incentivos é também corroborada pelos resultados de uma pesquisa direta realizada entre os empresários.

Taxation changes the equilibrium given by demand and supply. Consumers and firms lose, government gains and economic welfare is reduced. But, among private agents, who pays more? Firms or consumers? We address this question in the context of the Brazilian automobile market. First, we estimate the supply side, using a Bertrand model, and demand, using a Mixed Logit. Then, after estimating demand an supply parameters, we simulate the scenario without taxes. In this case, firmas would increase their profits by R$ 6,9 billions, consumer would gain R$ 24,9 billions e social loss would be R$ 7,04 billions. We conclude, then, that 78,2% of the tax burden is carried by the consumer and that the remaining 21,8% is carried by firms.

This paper investigates the consequences of ignoring price heterogeneity on the estimation of markups using micro-data. I show that ignoring output price heterogeneity yields markup estimates severely biased towards one regardless of competitiveness levels. To do so, I set up an econometric model that assumes monopolistic competition and a CES demand function in a differentiated product market. This model controls for unobserved price heterogeneity and is easy to estimate since OLS is applicable. Using data from Colombian plants, the differentiated product model reveals markup estimates considerably higher than one, rejecting the hypothesis of competitive markets. Keywords:

MONIZ, António Manuel de Andrade. A trilogia indianista de Alencar : identidade e miscigenação. Revista de Letras, Fortaleza,v. 1, n. 29, pt. 2, p. 12-18, 2009.

Improving or knowledge on cloud microphysics is fundamental to understand the clouds dynamics, its role in the atmospheric general circulation and energy balance, as well as in weather and climate prediction applications using large-scale and mesoscale models. This work aims to verify the dynamic and microphysical behavior of clouds over the Amazon basin and, in particular, to compare those behaviors over pasture and forest areas in Rondônia State. Several thermodynamic and microphysics measurements obtained in situ with the University of North Dakota instrumented aircraft (Citation II) were analyzed, allowing us to reach some conclusions about the microphysical and dynamical characteristics of clouds over pasture and forest areas. Cloud-resolving simulations using RAMS model (Regional Atmospheric Model System) were performed in order to assess sensitivities regarding vegetation cover (pasture or forest). The simulations did not show significant differences in the average vertical profiles of cloud microphysics variables (such as mixing rations for the different hydrometeor species). On the other hand, simulations using different model setups (changes in initialization or average diameter or droplets concentration), produced significant differences in precipitation and hydrometeor concentration, per exempe. Finally, simulations in which the droplets concentrations were specified showed better agreement with observations obtained during ABRACOS experiment (Anglo-Brazilian Amazonian Climate Observation Study), than simulations in which average diameter were specified.

The microphysics processes, represent nowadays, one of the most crucial uncertainties in the understanding of the tropical convection. This is due to the fact that great part of the energy necessary for the tropical atmospheric movements is released by the microphysics processes. Then a correct representation of the microphysics processes in general circulation models involving clouds and his interaction with the atmospheric circulation in larger scales is an essential condition for the obtention of good results in climatic forecast and simulations of global climatic changes. This work consist of a study (revision) of the theory atmospheric aerosols and a characterization of the Amazonian area, a complete description of the field experiments EMfiN!/LBA/SMOCC, as well, a study of the relationship between the condensation nuclei and the cloud microstructure, up to interaction of the clouds with the thermodynamic structure of the atmosphere of larger scale, possible climatic modifications provoked by anthropogenic factors (forest fire) and also studies using numerical models: one of parcels, one bin-microphysics cloud model and another of ensemble of clouds, all were initiated with data from the above mentioned experiments. The experimental and numerical results suggest that the pollution inhibits the formation and the development of the precipitation in the liquid phase (warm rain), and it alters the radiation flow, with significant consequences in the climatic, at least in regional scale.

O cálculo da luminescência em um semicondutor de gap direto e feito através de dois métodos bastante utilizados na literatura espelicializada na área, são tomados para uma simples comparação dos resultados teóricos obtidos. No primeiro caso, o método da equação de movimento da função de Green que, representa a interação entre o campo excitante, no caso um LASER potente e, a amostra semicondutora e desenvolvido com uso do desacoplamento RPA. A função diel étrica e obtida desse cálculo. No segundo a aplicação da teoria diagramática de perturbação, como um método mais rigoroso e sofisticado, no entanto de domínio mais difícil, e desenvolvido com o mesmo propósito do anterior. Com mais elegância obtemos o c álculo da luminescência. Os dois métodos são apresentados com alguma completude. Ao nal comparamos os dois resultados.

The phase diagram of an Ising metamagnet in an uniform magnetic field and in a random magnetic field is studied using a mean field theory derived from Bogoliubov variational principle. The phase diagram displays tricritical behavior and reentrance phenomenon for determined values of the random magnetic field above a certain critical value. The reentrance phenomenon is due to the competition between the other interactions ferromagnetic, anti-ferromagnetic, uniform magnetic field and the random magnetic field. In particular, if the model exhibits a first-order transition in zero random field, then a bimodal distribution never destroys this first-order transition, in contradiction to the case of a trimodal distribution.

Nonlinear fiber Bragg gratings has been considered since the end of last century for applications in optical communications and sensor techniques. The investigation of ultrashort pulses in linear Bragg gratings, however has been considered in the last few years due the development of specifical numerical techniques to solve this problem. In the present work an analytical and numerical study of the reflection and transmission characteristics of nonlinear Bragg gratings was done. For the first time, it has been considered periodic variations of the nonlinearity in that devices operating in the continuous wave regime, leading to a new class of nonuniform gratings. It was extensively investigated the bi- and multistable characteristics in these nonlinear fiber Bragg gratings. Also, for the first time, the numerical study of ultrahsort pulses (»1 ps) incident in nonlinear gratings was done. The focus was the input pulse intensity dependence on that gratings. Also, the depedences in the time shapes of grating index modulation depth and nonlinear index were studied. Apodized gratings were considered since they are of fundamental importance in modern communications systems.

No summary/description provided

This study investigates the impacts of the government income transfers on laborforce participation using data from the 1991 and 2000 Brazilian Censures. The determinants of labor force participation are evalualed by means of a random utility model.It is observed that the government income transfers have a strong impact on individual’s willingness to join the labor force. Other variables that affected significantly the labor force participation are geographic localization, education and fertility.