The impact of replacement cost disclosure on security prices: New Evidence

A number of studies have tested for information content in the ASR 190 disclosure by comparing the conditional and unconditional distribution of abnormal security returns around the time of disclosure. Since no differences were observed, it was concluded that ASR 190 had no information content. The study reported below performs a similar test by estimating the regression function of the conditional distribution of abnormal returns. This test procedure controls for the information content in contemporaneous historical cost disclosure and uses a conditioning variable not considered in earlier tests. It finds statistically significant stock price effects. However, because most of the effects appear to precede the official announcement date by several months, it is unclear whether stock prices were responding to the leakage of the information content of ASR 190 prior to disclosure, to private production of information contained in ASR 190 or to a variable omitted from the study which happens to be correlated with replacement costs.