Stablecoin payment networks create emergent remittance corridors as a network effect not as designed products

P2P Protocol demonstrates how remittance corridors emerge as a network effect rather than requiring designed bilateral relationships. The protocol operates on UPI in India, PIX in Brazil, and QRIS in Indonesia—the three largest real-time payment systems by transaction volume globally. When a Circle Leader in Lagos connects to the same protocol as a Circle Leader in Jakarta, a Nigeria-Indonesia remittance corridor comes into existence automatically. No intermediary needed to set it up, no banking relationship required beyond what each operator already holds locally. The protocol handles matching, escrow, and settlement while operators handle local context. The math is structural: 40 countries produce 780 possible corridors. This addresses a $860 billion annual remittance market where the average cost to send $200 remains 6.49% according to the World Bank, implying $56 billion in annual fee extraction. The institutional positioning confirms the opportunity: Stripe acquired Bridge for $1.1 billion, Mastercard acquired BVNK for up to $1.8 billion. The IMF reported in December 2025 that stablecoin market capitalization tripled since 2023 to $260 billion and cross-border stablecoin flows now exceed Bitcoin and Ethereum combined. The mechanism is that geographic expansion creates corridors as a byproduct, not as a separate product development effort.