Torres Prize for Best Third-Year Paper. Draft available upon request.
We study the determinants and macroeconomic implications of heterogeneity in firms’ inflation expectations, focusing on the role of industry differences. We develop a rational inattention model of price-setting firms within a production network. In equilibrium, firms’ inflation expectations are determined by (i) their attention to industry-specific marginal costs, (ii) the degree of comovement between marginal costs and aggregate inflation, and (iii) the realized marginal cost. Moreover, inattention compounds downstream in the production network. At the macroeconomic level, heterogeneous attention alters the aggregate effects of monetary policy and productivity shocks, hinging on the correlation between attention levels and responsiveness of marginal costs to those shocks. Empirically, we use a comprehensive dataset of US firms’ inflation expectations and combine it with industry-level information to test the theory. We find supportive evidence that industry characteristics, such as its degree of upstreamness, the volatility of sector-specific productivity, and realized marginal costs, influence firms’ attention to inflation.