The introduction of digital price tags and online shopping may facilitate price adjustments and reduce the degree of nominal rigidity in the economy. Is this welfare-improving? We address this question in a multi-sector New Keynesian model with information frictions and dispersed beliefs....

The Optimal Price Index (OPI) stabilization policy traditionally assigns greater importance to stabilize prices in sectors with stickier prices based on multi-sector models with full information or exogenous information frictions. The current paper challenges this prevailing policy prescription...