Industry Price Inflation, Firm Fundamentals, and Market Expectations

Abstract

In this study, I examine the predictive power of industry-level output price changes for firm fundamentals. I leverage the granular industry-level Producer Price Index (PPI) to show that rising industry prices are associated with contemporaneous growth in sales, earnings, and operating cash flows. However, these effects decay or even reverse within a year. Analysts systematically underreact to this information: higher PPI positively predicts next-quarter forecast errors. Consistent with economic theory, I find the effects of PPI on earnings are amplified for firms with high operating leverage, product market power, and historical inflation sensitivity. For analysts, the previously documented underreaction is attenuated when cost structures make the transmission mechanism clearer. Overall, industry price changes provide valuable signals for near-term firm performance, but this information is not fully impounded by market participants.