The Effect of Market Inefficiency on the Value Relevance of Earnings

43 Pages Posted: 23 Aug 2011

Date Written: August 20, 2011


This study investigates the effect of market inefficiency on the value relevance of earnings. Many prior studies challenge the efficiency of the stock market, an assumption the value relevance studies build on. With evidence of market inefficiency, it becomes important to understand how the extent of market inefficiency affects the results presented in value-relevance studies. Using the speed of a stock’s price response to news as the measure of the degree of market inefficiency, we investigate the effect of market inefficiency on the relation between annual returns and contemporaneous annual earnings, as well as future earnings. We document that the informativeness of future earnings and current earnings is negatively related to the level of market inefficiency. These results suggest that when market efficiency improves, contemporaneous and future earnings of firms become more informative.

Keywords: Market Efficiency, Value Relevance of Earnings

JEL Classification: G14, M41

Suggested Citation

Li, Yan and Kim, Sunyoung, The Effect of Market Inefficiency on the Value Relevance of Earnings (August 20, 2011). 24th Australasian Finance and Banking Conference 2011 Paper. Available at SSRN: or

Yan Li

NUS ( email )

1 Business Link
Singapore, 117592

Sunyoung Kim (Contact Author)

Monash University ( email )

H3.43, Building H, Level 3
Monash University Caulfiled
Melbourne, VIC 3145
613 99032183 (Phone)

Register to save articles to
your library


Paper statistics

Abstract Views
PlumX Metrics