The relationship between school violence and student proficiency

School violence has recently become a central concern among teachers, students, students' parents and policymakers. Violence can induce behaviors on educational agents that go against the goals of improving the quality of education and increasing school attendance. In fact, there is evidence that school environmental characteristics and student performance and behavior at school are related. Although school violence may have a direct impact on students’ performance, such impact has not yet been quantified. In this paper, we investigate this issue using Brazilian data and show that, on average, students who attended more violent schools had worse proficiency on a centralized test carried out by the Brazilian Ministry of Education, even when we controlled for school, class, teachers and student characteristics. We also show that school violence affects more the students from the bottom of the proficiency distribution. Furthermore, we find out that besides the direct effect on student proficiency, it seems that school violence has an indirect effect on it operating through teacher turnover. Indeed, we show that the occurrence of violent episodes in a school decreases the probability of a class in that school having only one teacher during the academic year, and increases the probability of that class having more than one teacher (teacher turnover).

Board of directors and top management team: a study on CEO relative power and financial return

Best corporate governance practices published in the primers of Brazilian Securities and Exchange Commission and the Brazilian Corporate Governance Institute promote board independence as much as possible, as a way to increase the effectiveness of governance mechanism (Sanzovo, 2010). Therefore, this paper aims at understanding if what the managerial literature portraits as being self-evident - stricter governance, better performance - can be observed in actual evidence. The question answered is: do companies with a stricter control and monitoring system perform better than others? The method applied in this paper consists on comparing 116 companies in respect to the their independence level between top management team and board directors– being that measured by four parameters, namely, the percentage of independent outsiders in the board, the separation of CEO and chairman, the adoption of contingent compensation and the percentage of institutional investors in the ownership structure – and their financial return measured in terms return on assets (ROA) from the latest Quarterly Earnings release of 2012. From the 534 companies listed in the Stock Exchange of Sao Paulo – Bovespa – 116 were selected due to their level of corporate governance. The title “Novo Mercado” refers to the superior level of governance level within companies listed in Bovespa, as they have to follow specific criteria to assure shareholders ´protection (BM&F, 2011). Regression analyses were conducted in order to reveal the correlation level between two selected variables. The results from the regression analysis were the following: the correlation between each parameter and ROA was 10.26%; the second regression analysis conducted measured the correlation between the independence level of top management team vis-à-vis board directors – namely, CEO relative power - and ROA, leading to a multiple R of 5.45%. Understanding that the scale is a simplification of the reality, the second part of the analysis transforms all the four parameters into dummy variables, excluding what could be called as an arbitrary scale. The ultimate result from this paper led to a multiple R of 28.44%, which implies that the combination of the variables are still not enough to translate the complex reality of organizations. Nonetheless, an important finding can be taken from this paper: two variables (percentage of outside directors and percentage of institutional investor ownership) are significant in the regression, with p-value lower than 10% and with negative coefficients. In other words, counter affirming what the literature very often portraits as being self-evident – stricter governance leads to higher performance – this paper has provided evidences to believe that the increase in the formal governance structure trough outside directors in the board and ownership by institutional investor might actually lead to worse performance. The section limitations and suggestions for future researches presents some reasons explaining why, although supported by strong theoretical background, this paper faced some challenging methodological assumptions, precluding categorical statements about the level of governance – measured by four selected parameters – and the financial return in terms of financial on assets.

Test score disclosure and school performance

In this paper we test whether the disclosure of test scores has direct impacts on student performance, school composition and school inputs. We take advantage of the discontinuity on the disclosure rules of The National Secondary Education Examination (ENEM) run in Brazil by the Ministry of Education: In 2006 it was established that the 2005 mean score results would be disclosed for schools with ten or more students who took the exam in the previous year. We use a regression discontinuity design to estimate the e ects of test disclosure. Our results indicate that private schools that had their average scores released in 2005 outperformed those that did not by 0.2-0.6 in 2007. We did not nd same results for public schools. Moreover, we did not nd evidence that treated schools adjusted their inputs or that there was major changes in the students composition of treated schools. These ndings allow us to interpret that the main mechanism driving the di erences in performance was the increased levels of students', teachers' and principals' e ort exerted by those in schools that had scores publicized.

Hope, risk perception and propensity to indebtedness

Hope is an important construct in marketing, once it is an antecedent of important marketing variables, such as trust, expectation and satisfaction (MacInnis & de Mello, 2005, Almeida, Mazzon & Botelho, 2007). Specifically, the literature suggests that hope can play an important influence on risk perception (Almeida, 2010, Almeida et al., 2007, Fleming, 2008, MacInnis & de Mello, 2005) and propensity to indebtedness (Fleming, 2008). Thus, this thesis aims to investigate the relations among hope, risk perception related to purchasing and consumption and propensity to indebtedness, by reviewing the existing literature and conducting two empirical researches. The first of them is a laboratory experiment, which accessed hope and risk perception of getting a mortgage loan. The second is a survey, investigating university students’ propensity to get indebted to pay for their university tuition, analyzed through the method of Structural Equations Modeling (SEM). These studies found that hope seems to play an important role on propensity to indebtedness, as higher levels of hope predicted an increase in the propensity to accept the mortgage loan, independent of actual risks, and an increase in the propensity of college students to get indebted to pay for their studies. In addition, the first study suggests that hope may lead to a decrease in risk perception, which, however, has not been confirmed by the second study. Finally, this research offers some methodological contributions, due to the fact that it is the first study using an experimental method to study hope in Brazil and, worldwide, it is the first study investigating the relation among hope, risk perception and propensity to indebtedness, which proved to be important influences in consumer behavior

Comprometimento organizacional: uma construção a partir da autenticidade do líder e do contexto psicológico

Buscar desempenho superior do capital humano é fator chave para as organizações exercerem maior competitividade e atingir níveis superiores ao da concorrência. Para este intento, conquistar o maior comprometimento dos trabalhadores é fundamental para aumentar o desempenho individual e, se destaca como a principal via para construção de vantagem competitiva duradoura nas organizações onde, ao líder, é delegado o papel de motivador. Estudos recentes desvendam uma nova abordagem para compreender o impacto da liderança sobre os subordinados. A autenticidade. O líder autêntico tem por mérito gerar auto-eficiência em seus liderados, é através do respeito com que trata seus subordinados, demonstra elevada consistência em seus atos, avalia os pontos de vista de seus comandados, provê retorno sobre desempenho e possue valores que o levam a ser justo, tendo ainda, a capacidade de extrair de seus liderados esforço adicional. Portanto, quanto mais “autêntica como pessoa”, mais poderá impactar diretamente na eficácia de seus seguidores. Mas, este estudo revelou que há um componente de mediação entre o líder autêntico e o maior comprometimento organizacional. O contrato psicológico. Em sua dimensão relacional, principalmente, que trata de lealdade e estabilidade, o contrato psicológico se destacou por mediar a relação entre a autenticidade do líder e o maior comprometimento da equipe, ou seja, a autenticidade do líder molda a forma como o indivíduo se vincula à organização, sendo assim uma descoberta relevante a qual nos auxilia a compreender quais são os verdadeiros fatores que influenciam no maior comprometimento e, conseqüente, aumento no desempenho dos trabalhadores.

O processo de comunicação professor-aluno: uma pesquisa preliminar

Esta dissertação resulta de uma pesquisa realizada com o objetivo de verificar o que pensam professores e alunos do Curso de Pedagogia das Universidades do Estado do Rio de Janeiro e Santa Úrsula, sobre a comunicação em sala de aula, isto e: -verificar se há coincidência entre a auto percepção do professor como comunicador e a percepção do aluno sobre o desempenho dessa comunicação. Partiu-se do pressuposto de que, identificada uma discrepância significativa nesse sentido, tal acha do poderia alertar para a importância do estudo da questão, especialmente em relação a outras áreas de ensino, por natureza de seus objetivos, mais voltadas à informação técnica e científica. Trata-se, pois, de um estudo com implicações teóricas e práticas, cujos resultados parecem sugerir que a habilidade no desempenho do papel de comunicador é requisito básico a ser considerado na formação do futuro professor.