Published online by Cambridge University Press: 18 October 2019
We provide strong support for the underappreciated expected earnings hypothesis of a negative correlation between aggregate stock returns and earnings. For 1970–2000, our powerful modeling strategy incorporating macroeconomic information reveals that aggregate returns are significantly and negatively correlated with expected aggregate earnings changes but uncorrelated with unexpected aggregate earnings changes. However, this negative correlation changes after 2000, perhaps from heightened volatility or accounting changes. We also show that underlying macroeconomic information explains the power of aggregate earnings to predict future gross domestic product growth.
We thank Dichu Bao, Xiangpei Chen, Kim Sau Chung, Azhar Iqbal, Alon Kalay, Eric Ng, Gil Sadka, Jing Wang, Shuye Wang, and participants at the 2018 Hong Kong Economic Association and the 2018 Frontiers of Business Research in China International Symposium for their helpful comments and assistance. Lai gratefully acknowledges funding from the Research Grants Council of Hong Kong (PolyU 155062/15B).