Signaling is the most commonly cited explanation for stock repurchases in the academic literature. Yet, there is little evidence on whether managers intentionally use repurchases as signaling devices. Using a firm's financial reporting behavior to infer managerial intent, we find evidence suggesting that managers intentionally use fixed-price repurchase tender offers to signal undervaluation. In contrast, we find no evidence that managers use Dutch-auction tender offers to signal undervaluation. Instead, firms engaging in Dutch-auction repurchases act as if they are trying to deflate their earnings prior to the repurchases to further reduce the repurchasing price.

Public firms provide a large amount of information through their disclosures. In addition, information intermediaries publicly analyze, discuss, and disseminate these disclosures. Thus, greater public firm presence in an industry should reduce uncertainty in that industry. Following the theoretical prediction of investment under uncertainty, we hypothesize and find that private firms are more responsive to their investment opportunities when they operate in industries with greater public firm presence. Further, we find that the effect of public firm presence is greater in industries with better information quality and in industries characterized by a greater degree of investment irreversibility. Our results suggest that public firms generate positive externalities by reducing industry uncertainty and facilitating more efficient private firm investment.