Dee Hock

Formation and governance of a cooperative clearing-and-settlement framework removed significant economic frictions that had previously limited interbank ATM use. Concrete steps included reorganizing a bankcard system into a member-owned association, defining authorization messaging protocols, settlement cycles and dispute-resolution rules, and negotiating technical and commercial interoperability requirements between banks and terminal vendors. Those deliverables enabled terminals to accept cards from other issuers and for transactions to be routed and reconciled across institutions. Standardized interbank procedures decreased per-transaction costs and counterparty risk, which encouraged banks to permit customer use of third-party ATMs, expanding physical access to cash and increasing network liquidity. The operational rules and commercial agreements created a reproducible model for subsequent regional and global ATM networks. By converting fragmented local card programs into a coordinated, rules-based network and providing governance artifacts—message standards, settlement practices and membership rules—the initiative materially shaped how ATM transactions were authorized, cleared and settled, facilitating the global scale and economic viability of ATM services.