scholarly journals Asymmetric Information Consolidation and Price Discovery: Inferring Bad News from Insider Sales

Author(s):  
Irene Karamanou ◽  
Grace Pownall ◽  
Rachna Prakash
2015 ◽  
Vol 91 (1) ◽  
pp. 317-346 ◽  
Author(s):  
Brady Twedt

ABSTRACT This study investigates the impact of dissemination on the efficiency of the price discovery process with respect to management earnings guidance disclosures. I first identify firm and guidance characteristics associated with the likelihood that guidance receives coverage in the Dow Jones Newswires. Using propensity score, within-firm, and returns-based matched control samples of guidance, I find that newswire dissemination is associated with larger initial price reactions and, more importantly, an increase in the speed with which guidance information is incorporated into price. I also find that newswire coverage affects the market's reaction to stand-alone versus bundled guidance and good versus bad news guidance. This study is the first to provide evidence of systematic variation, both across and within firms, in the breadth of guidance dissemination, and it shows that this variation has a substantial effect on how investors respond to guidance. JEL Classifications: G14; M41; L82.


2017 ◽  
Vol 9 (3) ◽  
pp. 220 ◽  
Author(s):  
Joshua Odutola Omokehinde ◽  
Matthew Adeolu Abata ◽  
Russell Olukayode Christopher Somoye ◽  
Stephen Oseko Migiro

This paper investigates the effect of asymmetric information on volatility of stock returns in Nigeria using the best-fit Asymmetric Power Autoregressive Conditional Heteroskedasticity, APARCH (1,1) model, under the Generalized Error Distribution (GED) at 1% significance level from 3 January 2000 to 29 November 2016. The descriptive statistical results showed that the returns were not normally and linearly distributed, with strong evidence of a heteroskedasticity effect. The results of the analysis also confirmed the effect of asymmetric information on the volatility of stock returns in the Nigerian stock market. The asymmetric parameter (γ) was negative at (-1.00), which is statistically significant at 1% level. This confirms that there is an asymmetric or leverage effect where bad news had a more destabilizing effect on the volatility of stock returns than good news. The total impact of bad news on volatility was explosive at 2.0, during the period under review. Also, the volatility persistence which is measured by the sum of ARCH(α) and GARCH(β) stood at 1.695950. This is above unity and suggests that volatility takes a long time to attenuate in Nigeria. This could be largely ascribed to the persistent effect of the 2008 global financial crisis, which probably eroded investors’ confidence in the market.


2017 ◽  
Vol 9 (3(J)) ◽  
pp. 220-231
Author(s):  
Joshua Odutola Omokehinde ◽  
Matthew Adeolu Abata ◽  
Olukayode Russell ◽  
Stephen Oseko Migiro ◽  
Christopher Somoye

This paper investigates the effect of asymmetric information on volatility of stock returns in Nigeria using the best-fit Asymmetric Power Autoregressive Conditional Heteroskedasticity, APARCH (1,1) model, under the Generalized Error Distribution (GED) at 1% significance level from 3 January 2000 to 29 November 2016. The descriptive statistical results showed that the returns were not normally and linearly distributed, with strong evidence of a heteroskedasticity effect. The results of the analysis also confirmed the effect of asymmetric information on the volatility of stock returns in the Nigerian stock market. The asymmetric parameter (γ) was negative at (-1.00), which is statistically significant at 1% level. This confirms that there is an asymmetric or leverage effect where bad news had a more destabilizing effect on the volatility of stock returns than good news. The total impact of bad news on volatility was explosive at 2.0, during the period under review. Also, the volatility persistence which is measured by the sum of ARCH(α) and GARCH(β) stood at 1.695950. This is above unity and suggests that volatility takes a long time to attenuate in Nigeria. This could be largely ascribed to the persistent effect of the 2008 global financial crisis, which probably eroded investors’ confidence in the market.


Author(s):  
Anthony May ◽  
Rodney Boehme

A nascent literature in finance and accounting on tail risk in individual stock returns concludes that bad news hoarding by corporate managers engenders sudden, extreme crashes in a firm’s stock price when the bad news is eventually made public. This literature finds that firm-specific crash risk is higher among firms with more severe asymmetric information and agency problems. A hitherto disjointed literature spanning the fields of international business, finance, and accounting suggests that geographic dispersion in a firm’s operations, and especially dispersion across different countries, gives rise to organizational complexities and greater costs of monitoring that can exacerbate asymmetric information and agency problems. Motivated by the confluence of arguments and findings from these two strands of literature, this paper examines whether stock price crash risk is higher among multinational firms than domestic firms. Using a large sample of U.S. headquartered firms during 1987-2011, we find robust evidence that multinational firms are significantly more likely to crash than domestic firms. Moreover, we show that the difference in crash risk between multinational and domestic firms is most acute among firms with weaker corporate governance mechanisms, including weaker shareholder rights, less independent boards, and less stable institutional ownership. Our analysis indicates that stronger monitoring from each of these three governance mechanisms significantly attenuates the positive relation between crash risk and multinationality. Our findings are robust to the use of alternative measures of crash risk and to controlling for known determinants of crash risk identified in prior studies. Our study offers new insights that should hold value for scholars and market participants interested in understanding the implications of heighted agency problems that multinational firms are likely to encounter and scholars and market participants interested in developing models that more accurately predict tail risk in the equity returns of individual firms.


2001 ◽  
Vol 35 (3) ◽  
pp. 197-205 ◽  
Author(s):  
Sonia Dosanjh ◽  
Judy Barnes ◽  
Mohit Bhandari

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