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RESUMOEstudos que avaliam o impacto de informações contábeis nas variáveis do mercado de ações têm adquirido grande relevância na literatura contá-bil e se constituído em instrumento de avaliação da utilidade da informação contábil. O presente estudo segue a mesma lógica das pesquisas lucro-retorno, substituindo a medida de resultados contábeis pela de alavancagem operacional e tendo por base os dados das companhias listadas na Bovespa, dos setores de petróleo e gás, materiais básicos, bens industriais, construção e transporte, consumo não cíclico e consumo cíclico, referentes ao período entre o segundo trimestre de 2001 e o terceiro trimestre de 2004. A premissa considerada é a de que, como a alavancagem operacional, além de incorporar uma dimensão de resultado (o lucro operacional), é uma das determinantes do risco sistemático das ações, e de que há relação entre risco e retorno das ações, é possível inferir uma associação positiva entre o grau de alavancagem operacional e o retorno das ABSTRACT Studies evaluating the impact of fi nancial reporting information on capital market variables have gained great importance in the accounting

Autorização concedida ao Repositório da Universidade de Brasília (RIUnB) pelo editor da revista, em 30/11/2010, com os seguintes condições: disponível sob Licença Creative Commons 3.0, que permite copiar, distribuir e transmitir o trabalho, desde que seja citado o autor e licenciante. Não permite o uso para fins comerciais nem a adaptação desta.Authorization granted to the Repository of the University of Brasília (RIUnB) by the editor of the journal, on 30/11/2010, with the following conditions: available under Creative Commons License 3.0, that allows you to copy, distribute and transmit the work, provided the author and the licensor is cited. Does not allow the use for commercial purposes nor adaptation. Lustosa and Oliveira (2007). To verify the predictive ability of the method comparative analysis are performed, using statistical tests of means between the real samples and the post-privatization period simulated samples. The results show the suitability of the method in predicting the production costs and consequently assisting the decisional process.

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Artigo apresentado no XXXII Enanpad, na área de Administração Pública, subtema Gestão e Políticas Públicas -2008. Os autores agradecem as contribuições dos pareceristas que contribuíram para melhoria deste artigo. ABSTRACT The focus of this article is the effectiveness of accounting information as a supportive tool to the execution of the attributions of planning, management and control inherent to the Health Councils. Thus, the article analyses the results of qualitative nature exploratory study (GIL,1999), with regards to the information reported on the accountancy reports of the Health Secretary of the Federal District to the Health Council of the Federal District.The qualitative characteristics necessary to the information designated to the users were based upon Hendriksen and Van Breda(1999), Glautier andUnderdown (1994) and RiahiBelkaoui (2004

Purpose After assessing papers on efficiency, most of the studies available are focused on the analysis of efficiency measures, without providing a deep discussion of the factors that determine efficiency. This study aims to evaluate the efficiency of Brazilian electricity distribution companies based on a structural model that enables the identification of a network of relationships among representative variables that contribute to efficiency. Design/methodology/approach Structural equation modeling was applied in a sample of 62 electricity distribution companies operating in Brazil, forming a balanced panel from 2010 to 2014. Then, the authors verified the model compliance according to the empirical evidence of the entities analyzed. This verification included a survey of the variables, which was supported by theoretical references related to the phenomenon studied. The data collected were statistically treated, and benchmarking models and multivariate techniques were used. Once the adjustments were made, the re-specified model was estimated using the maximum likelihood method. Findings The empirical model reached good adjustment rates. The analysis concluded that the constructs information system, structural system, management system and sociocultural system affect efficiency. Originality/value This study adds to several other papers, and this is one of its main contributions. Relationships among the constructs have been systematized according to literature in the form of a structural model, which will enable future researchers to have a reference frame of relevant studies and a research foundation in this area of knowledge. A third contribution is the model tested in a sample of Brazilian electricity distribution companies, whose results can be compared to other utility sectors (e.g. telecommunications) or to other countries' electrical sectors, thus providing an empirical basis for the proposed hypotheses. Finally, this study also offers a contribution to the Brazilian Electrical Energy Agency (Aneel, in Portuguese), a regulatory agency, providing mechanisms to guide tariff adjustments, seeking a balance between costs and the need for investments allied to tariff affordability.