Browsing Produção Intelectual em Bases Externas by Author "Lora, Mayra Ivanoff"

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Beta-binomial/gamma-poisson regression models for repeated counts with random parameters

Lora, Mayra Ivanoff; Singer, Julio M.
2011-07

Beta-binomial/Poisson models have been used by many authors to model multivariate count data. Lora and Singer [Stat. Med. 27 (2008) 3366-3381] extended such models to accommodate repeated multivariate count data with ...
Mutual fund managers stock preferences in Latin America

Piccioni Junior, João Luiz; Sheng, Hsia Hua; Lora, Mayra Ivanoff
2012-09

In this paper, we observe the preferential characteristics of mutual fund managers when investing in Latin America. The main objective was checking the hypothesis that foreign managers prefer companies with characteristics ...
The use of Fx derivatives and the cost of capital: evidence of Brazilian companies

Coutinho, João Ricardo Ribeiro; Sheng, Hsia Hua; Lora, Mayra Ivanoff
2012-12

Large corporations have been using derivative instruments as a tool to protect their indirect exposure, as FX risks. A sample with 47 non-financial Bovespa Listed Brazilian companies from 2004 and 2010 was used to test the ...