Is child labor harmful? the impact of working as a child on adult earnings

This paper explores the question: is working as young laborer harmful to an individual in terms of adult outcomes in income? This question is explored through the utilization of a unique set of instruments that control for the decision to work as a child and the decision of how much schooling to acquire. These instruments are combined with two large household survey data sets from Brazil that include retrospective information on the child labor and schooling of working-age adults: the 1988 and 1996 PNAD. Estimations of the reduced form earnings model are performed first by using OLS without controlling for the potential endogeneity of child labor and schooling, and then by using a GMM estimation of instrumental variables models that include the set of instruments for child labor and schooling. The findings of the empirical investigations show that child labor has large negative impact on adult earnings for both male and female children even when controlling for schooling. In addition, the negative impact of starting to work as a child reverses at around age 14. Finally, different child labor activities are examined to determine if some are beneficial while others harmful with the finding that working in agriculture as a child appears to have no negative impact over and above the loss of education.

Macroeconomic announcements, price discovery, and order flow efects in the stock market: evidence from incomplete data and multiple financial markets

This paper investigates heterogeneity in the market assessment of public macro- economic announcements by exploring (jointly) two main mechanisms through which macroeconomic news might enter stock prices: instantaneous fundamental news im- pacts consistent with the asset pricing view of symmetric information, and permanent order ow e¤ects consistent with a microstructure view of asymmetric information related to heterogeneous interpretation of public news. Theoretical motivation and empirical evidence for the operation of both mechanisms are presented. Signi cant in- stantaneous news impacts are detected for news related to real activity (including em- ployment), investment, in ation, and monetary policy; however, signi cant order ow e¤ects are also observed on employment announcement days. A multi-market analysis suggests that these asymmetric information e¤ects come from uncertainty about long term interest rates due to heterogeneous assessments of future Fed responses to em- ployment shocks.

Do dividends signal more earnings? a theoretical analysis

The signaling models have contributed to the literature of corporate finance by the formalization of "the informational content of dividends hypothesis". However, these models are under criticism of empirical works, as weak evidences were found supporting one of the main predictions: the positive relation between changes in dividends and changes in earnings. We claim that the failure to verify this prediction does not invalidate the signaling approach. The mo deIs developed up to now assume or derive utility functions with the single-crossing property. We show that signaling is possible in the absence of this property and, in this case, changes in dividend and changes in earnings can be positively or negatively related.

Labor earnings dynamics in post-stabilization Brazil

This paper analyzes both the levels and evolution of wage inequality in the Brazilian formal labor market using administrative data from the Brazilian Ministry of Labor (RAIS) from 1994 to 2009. After the covariance structure of the log of real weekly wages is estimated and the variance of the log of real weekly wages is decomposed into its permanent and transitory components, we verify that nearly 60% of the inequality within age and education groups is explained by the permanent component, i.e., by time-invariant individual productive characteristics. During this period, wage inequality decreased by 29%. In the rst years immediately after the macroeconomic stabilization (1994

The effects of longevity and distortions on education and retirement

This article studies the impact of longevity and taxation on life-cycle decisions and long-run income. Individuals allocate optimally their total lifetime between education, working and retirement. They also decide at each moment how much to save or consume out of their income, and after entering the labor market how to divide their time between labor and leisure. The model incorporates experience-earnings profiles and the return-to-education function that follows evidence from the labor literature. In this setup, increases in longevity raises the investment in education - time in school - and retirement. The model is calibrated to the U.S. and is able to reproduce observed schooling levels and the increase in retirement, as the evidence shows. Simulations show that a country equal to the U.S. but with 20% smaller longevity will be 25% poorer. In this economy, labor taxes have a strong impact on the per capita income, as it decreases labor effort, time at school and retirement age, in addition to the general equilibrium impact on physical capital. We conclude that life-cycle effects are relevant in analyzing the aggregate outcome of taxation.

Redistribution with ex-ante unobserved choice

Introducing dynamics to Mirrlees' (1971) optimal taxation model creates a whole new set of issues that are only starting to be investigated in the literature. When choices are made before one's realizing her productivity incentive constraints ought to be defined as a function of more complex strategies than in the static case. 80 far, all work has assumed that these choices are observable and can be contracted upon by the government. Here we investigate choices that : i) are not observed, andj ii) affect preferences conditional Oil the realization of types. In the simplest possible model where a non-trivial filtration is incorporated we show how these two characteristics make it necessary for IC constraints to be defined in terms of strategies rather than pure announcements. Tax prescriptions are derived, and it is shown that they bear some resemblance to classic optimal taxation results. We are able to show that in the most 'natural' cases return on capital ought to be taxed . However, we also show that the uniform taxation prescription of Atkinson and Stiglitz fails to hold, in general.

Geração e qualidade do emprego no setor terciário da região metropolitana de são Paulo

Este artigo analisa a adequação dos diversos ramos do setor terciário da Região Metropolitana de São Paulo (RMSP) à políticas de emprego. Existe um trade-off entre geração e qualidade do emprego, assim, o modelo - apresentado na primeira seção do trabalho - leva em conta ambas as dimensões. A qualidade é função do rendimento médio, grau de escolaridade, cobertura de carteira de trabalho assinada e tempo de permanência, todos relativos ao posto de trabalho. Na segunda seção, apresenta-se os dados para 1997, provenientes da PED - Pesquisa de Emprego e Desemprego - elaborada em conjunto pela Fundação SEADE e pelo DIEESE. A seção seguinte descreve o tratamento estatístico aplicado às informações. Os resultados por ramo são analisados na quarta seção. Por fim, divide-se o setor terciário da RMSP em três grupos: alta, média e baixa adequação à políticas de emprego.

O conservadorismo e o reconhecimento assimétrico: evidências do mercado de capitais brasileiro

Neste trabalho são apresentadas evidências da relevância dos números contábeis dentro da estrutura de Ohlson. Meus resultados sugerem que os valores de patrimônio são superiores aos do lucro em termos de relevância. Também são demonstrados que o resultado contábil não incorpora o resultado econômico de forma conservadora (assimetricamente). Esses resultados são consistentes com a hipótese de que em uma estrutura de mercado de capitais na qual a concentração da propriedade é alta os lucros são menos eficientes como redutores da assimetria informacional do que os valores de patrimônio que permanecem relevantes devido a implicações legais.

Mudanças na distribuição dos rendimentos da população ocupada brasileira

A distribuição dos rendimentos da população ocupada brasileira sofreu nos últimos anos, alterações consideráveis, a partir dos novos requisitos exigidos para a contratação da mão-de-obra ou para a remuneração de autônomos, tendo em vista os renovados processos produtivos e organizacionais, bem como as políticas econômicas conjunturais voltadas para a estabilização. A pesquisa visa contribuir com subsídios para a análise dos impactos das transformações recentes na composição dos rendimentos médios do trabalhador brasileiro, observando-se as situações nas condições de trabalho com ou sem carteira assinada, segundo o gênero, dentro e fora de empresas. Nas empresas é analisada a composição dos rendimentos segundo a segmentação do mercado de trabalho e a qualificação.

Perfil dos trabalhadores por conta própria no Brasil

O objetivo global desta pesquisa foi contribuir com subsídios para a análise das características do trabalhador brasileiro por conta própria ou autônomo, particularmente no que se refere ao padrão de distribuição setorial, ocupacional e dos rendimentos da população ocupada, tendo em vista os novos requisitos demandados pelos atuais processos produtivos e organizacionais, dentro e fora das empresas. Estas características são retratadas pela representatividade ocupacional dos trabalhadores detalhando particularmente as diferenças segundo a segmentação setorial, nível de escolaridade, rendimentos, número de horas trabalhadas por semana e gênero, analisando as informações disponíveis para o ano de 1997.

Alinhamento estratégico de TI: avaliando as percepções de executivos de negócio e TI

The Information Technology (IT) is a concept which has gained importance for organizations. It is expected that the strategic use of IT not only sustain the business operations of enterprises, but mainly leverage the initiative of new competitive strategies. However, these expectations on the earnings with the IT not have been achieved and questions arise about the return of the investments in IT. One of the causes is credited to the lack of alignment between the strategies of business and IT. The search of strategic alignment between IT and business takes to the necessity of measure it. This assessment can help identify whether the perceptions of business executives and IT executives, about the strategic alignment of IT, are similar or different. The objective of this work is to investigate the perceptions of business executives and IT executives in relation to the IT strategic alignment implemented in a selected organization. It was conducted a case study, in a company that provides services to the financial market. As a result, this work identified that there is no statistically significant difference between the perceptions of business executives and IT executives, related to the level of IT strategic alignment maturity implemented in the organization, and highlighted factors that promote this alignment: (a) senior management supports the IT (b) IT takes part of strategic planning, (c) IT understands the business of the company, and (d) there is a partnership between business and IT executives. Additionally, it was proposed that these similar perceptions result from the sharing of assumptions, knowledge and common expectations for the IT strategic alignment between the two groups of executives interviewed, and that led the company to achieve a higher level of IT strategic alignment. Each Practice of Strategic Alignment was examined separately. Although not have statistically significant differences between the perceptions of business executives and IT executives, the practices of Communication, Measures of Value and Competence, and Skills were better assessed by business executives and the practices of Governance and Partnerships have been better perceived by IT executives. The practice of Scope and Architecture and the IT Strategic Alignment, showed no differences in perceptions between the two groups of executives.

Como a utilização do leilão reverso eletrônico pode impactar as compras do setor hoteleiro brasileiro

Globalization, as an economic, social and cultural phenomenon, has profoundly changed the behavior of individuals, companies and nations. It is responsible for an increasingly borderless world and a significant increase in competition between companies, due to the rapid dissemination of information and technical and scientific advances. Every day at the global level, the growing competition between companies makes it more difficult for corporations to boost their earnings through added revenues, which makes it imperative to cut costs to be profitable. To this end, utilization of the reverse auction, which has emerged as a new purchasing tool in recent years, offers the possibility of a significant and immediate reduction in prices, as well as greater operational efficiency in purchasing. The Brazilian hotel industry has also experienced transformations with globalization. A business characterized in the 70s by small and medium-sized companies has developed into an economic segment that today includes large international chains and, therefore, also needs to cut costs to be profitable. Applying the case study approach, this research seeks to evaluate the impact that the utilization of a reverse auction as a purchasing tool has had on the hotel industry in Brazil.

A Influência do gerente de conta no uso do internet banking pelo cliente alta renda no Brasil: um estudo de caso

O presente estudo foi realizado no segmento de pessoas físicas de alta renda de um grande banco de varejo do Brasil, com foco no Município de São Paulo. A investigação teve como objetivo verificar se há alguma relação entre o perfil do gerente de conta, no que se refere a sua desenvoltura tecnológica e com a Internet, e o nível de uso do Internet Banking pelos clientes sob sua gestão. Para esta investigação foi utilizada uma abordagem qualitativa composta pela análise de dados internos do segmento, entrevistas em profundidade e envio de questionário a um grupo de gerentes. Os resultados (1) sugerem que mesmo no segmento alta renda existem outras variáveis como a idade e o recebimento do crédito salário na conta que afetam o nível de utilização do Internet Banking pelos clientes; e que o perfil dos gerentes divergem em termos de envolvimento com as novas tecnologias, o que inclui o uso da Internet; e (2) indicam que o gerente com maior domínio das tecnologias e da Internet possui maior poder de convencimento junto aos seus clientes no que se refere ao uso do Internet Banking.

Essays in corporate risk management

This research investigates the factors that lead Latin American non-financial firms to manage risks using derivatives. The main focus is on currency risk management. With this purpose, this thesis is divided into an introduction and two main chapters, which have been written as stand-alone papers. The first paper describes the results of a survey on derivatives usage and risk management responded by the CFOs of 74 Brazilian non-financial firms listed at the São Paulo Stock Exchange (BOVESPA), and the main evidence found is: i) larger firms are more likely to use financial derivatives; ii) foreign exchange risk is the most managed with derivatives; iii) Brazilian managers are more concerned with legal and institutional aspects in using derivatives, such as the taxation and accounting treatment of these instruments, than with issues related to implementing and maintaining a risk management program using derivatives. The second paper studies the determinants of risk management with derivatives in four Latin American countries (Argentina, Brazil, Chile and Mexico). I investigate not only the decision of whether to use financial derivatives or not, but also the magnitude of risk management, measured by the notional value of outstanding derivatives contracts. This is the first study, to the best of my knowledge, to use derivatives holdings information in emerging markets. The use of a multi-country setting allows the analysis of institutional and economic factors, such as foreign currency indebtedness, the high volatility of exchange rates, the instability of political and institutional framework and the development of financial markets, which are issues of second-order importance in developed markets. The main contribution of the second paper is on the understanding of the relationship among currency derivatives usage, foreign debt and the sensitivity of operational earnings to currency fluctuations in Latin American countries. Unlikely previous findings for US firms, my evidence shows that derivatives held by Latin American firms are capable of producing cash flows comparable to financial expenses and investments, showing that derivatives are key instruments in their risk management strategies. It is also the first work to show strong and robust evidence that firms that benefit from local currency devaluation (e.g. exporters) have a natural currency hedge for foreign debt that allows them to bear higher levels of debt in foreign currency. This implies that firms under this revenue-cost structure require lower levels of hedging with derivatives. The findings also provide evidence that large firms are more likely to use derivatives, but the magnitude of derivatives holdings seems to be unrelated to the size of the firm, consistent with findings for US firms.