We investigate whether suppliers adjust innovative supply chain investment following stock market signals about customers’ economic prospects. We show that suppliers increase R&D and investment in customer-related patents after positive market reactions to customers’ new product announcements. A battery of falsification tests suggest that spurious factors are unlikely to explain our results. Market signals about customers appear more important when information asymmetry is greater, when suppliers face greater competitive threats, and when suppliers are financially unconstrained. Our evidence suggests that the stock market can be a viable source of information to mitigate supply chain frictions.

We examine managers’' disclosure decisions in response to non-fundamental price shocks. Using mutual fund fire sales as a source of market disruption, we show some firms respond by issuing earnings guidance. Others, especially firms with weaker performance and more short-term-oriented investors, engage in accrual-based earnings management. To identify the efficacy of firm disclosure choices, we examine passage of Sarbanes-Oxley and Regulation Fair Disclosure and show that they increased reliance on guidance rather than earnings management. The shift is associated with faster post-fire-sales price recovery, suggesting enhancing information disclosure rather than manipulation is effective in mitigating the effect of market disruptions.

Firms rely on patenting and trade secrecy to protect their intellectual property. We study how changes in the trade-off between patenting and secrecy affect firms’ stock liquidity and financing outcomes. We show that an international trade agreement (TRIPS) that strengthened patent protection led to a 10.2% increase in patenting, accompanied by a 14.0%–27.1% improvement in stock liquidity for firms in patent-reliant industries. This in turn allows the affected firms to increase equity financing by 1.9% and reduce leverage by 5.9%. Our results suggest that policies that promote use of patenting over secrecy can reduce informational frictions in equity markets.