2015 Fiscal Year Final Research Report
Financial Reporting Quality and Stock Price Synchronicity
Project/Area Number |
25780283
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Accounting
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Research Institution | Osaka University |
Principal Investigator |
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Keywords | 財務報告 / 株価の共変動 / クラッシュ・リスク / 業績予想 |
Outline of Final Research Achievements |
A controversial issue in stock price synchronicity research is whether a lower R-squared reflects a stock price with more information or a noisier stock price. To better understand the properties of R-squared, I focus on the situation in which the information environment drastically deteriorates and examine which view represents a more plausible explanation for R-squared. Using data around an exogenous catastrophic event, namely, the GEJE, on March 11, 2011, I find that, after the event, stock price synchronicity for opaque firms was higher than for transparent firms. The stock prices of opaque firms were not likely to capitalize firm-specific information after the GEJE, which led their R-squared values to increase compared with those of transparent firms. The evidence is more consistent with the hypothesis that a higher R-squared signals that the stock price is deviating from its fundamental value; that is, a lower R-squared reflects a more informative stock price.
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Free Research Field |
会計学
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