We study how disclosure processing costs affect managers’ ability to learn from their own firms’ stock price and incorporate this information into their investment decisions. To provide evidence on this issue, we examine country-level adoptions of centralized electronic disclosure systems. These systems, which digitize and centralize firm disclosures, are among regulators’ most critical technological interventions to reduce disclosure processing costs for investors. Consistent with CEDS crowding out investors’ private-information acquisition, which induces managers to learn less from their stock price, we find a significant decrease in managers’ investment sensitivity to price following these adoptions. Leveraging country-level variation, we also show these effects are heterogeneous across several country-specific dimensions. We find that decreased managerial learning is greatest in places that benefit most from CEDS: smaller and more opaque countries and those with better-developed platforms. Overall, our results show technology that reduces disclosure processing costs have real effects on the global economy.