This paper examines how low financial reporting frequency affects investors' reliance on alternative sources of earnings information. We find that the returns of semi-annual earnings announcers (i.e., low reporting frequency stocks [LRF]) are almost twice as sensitive to the earnings announcement returns of U.S. industry bellwether peers for non-reporting periods compared to reporting periods. Strikingly, these heightened spillovers are followed by return reversals when investors finally observe own-firm earnings at the subsequent semi-annual earnings announcement. This indicates that investors periodically overreact to peer-firm earnings news in the absence of own-firm earnings disclosures in interim periods. We also find elevated price volatility and trading volume around earnings announcements for non-reporting periods, consistent with theories of investor overconfidence. Collectively, our results suggest that investors are unable to successfully offset the information loss arising from low reporting frequency, thus impairing their ability to value firms and adversely affecting the quality of financial markets. JEL Classifications: M41; M48; G14. Data Availability: Data are available from the public sources cited in the text.

This study provides evidence of a directly observable and significant cost of International Financial Reporting Standards (IFRS) adoption, by examining the fees incurred by firms for the statutory audit of their financial statements at the time of transition. Using a comprehensive dataset of all publicly traded Australian companies, we quantify an economy-wide increase in the mean level of audit costs of 23 percent in the year of IFRS transition. We estimate an abnormal IFRS-related increase in audit costs in excess of 8 percent, beyond the normal yearly fee increases in the pre-IFRS period. Further analysis provides evidence that small firms incur disproportionately higher IFRS-related audit fees. We then survey auditors to construct a firm-specific measure of IFRS audit complexity. Empirical findings suggest that firms with greater exposure to audit complexity exhibit greater increases in compliance costs for the transition to IFRS. Given the renewed debate about whether the Securities and Exchange Commission (SEC) should mandate IFRS for U.S. firms, our results are of timely importance. Data Availability: Data are publicly available from the sources identified in the paper. Survey response data are available from the authors upon request.