SciELO - Scientific Electronic Library Online

vol.25 issue64Homogeneity Versus heterogeneity in debt structure: a study using panel dataCapital structure, cash holdings and firm value: a study of brazilian listed firms author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Revista Contabilidade & Finanças

On-line version ISSN 1808-057X


MARTINS, Orleans Silva  and  PAULO, Edilson. Information asymmetry in stock trading, economic and financial characteristics and corporate governance in the brazilian stock market. Rev. contab. finanç. [online]. 2014, vol.25, n.64, pp.33-45. ISSN 1808-057X.

This study sought to investigate the relationship between information asymmetry in the stock trading, economic and financial characteristics and corporate governance of listed companies in the Brazilian stock market in 2010 and 2011. To this end, the study relied on a theoretical framework for information asymmetry in the capital market to measure the asymmetry's magnitude based on the intraday stock-trading data of 194 companies. The primary results demonstrated that the informational asymmetry in the stock trading was positively related to the risk, return and liquidity of the shares as well as the cost of equity and the size of the companies. In addition, the asymmetry was negatively related to the abnormal return of shares. During the investigated period, the information asymmetry relationship with the liquidity and size (positive) and the abnormal return (negative) were at odds with previous research. The reasons for our results may be related to specific aspects of the Brazilian market, for example, in the case of abnormal returns, the deceleration of the Bovespa Index (IBovespa) or the reflection of the average return to negotiators without insider information during the period. In case of liquidity and size, the high index of issuance and negotiation of preferred shares may have influenced the results. Thus, this research contributes to the analysis of idiosyncratic characteristics of the capital market of a developing country, such as information asymmetry in stock trading and its association with the economic and financial characteristics and corporate governance of companies in the Brazilian stock market.

Keywords : Insider information; Insider trading; Capital market.

        · abstract in Portuguese     · text in English | Portuguese     · English ( pdf ) | Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License