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The Evolution of Payment: From Barter to Blockchain and Beyond

• Payer: initiates the transfer (individual, business, government).
• Payee: receives value.
• Payment service providers (PSPs): facilitate transfers (banks, card networks, fintechs).
• Intermediaries/clearing systems: reconcile and settle transactions (ACH, SWIFT, real-time rails).
• Regulators: set rules for safety, fraud prevention, consumer protection.

7. User experience (UX) factors that drive adoption

payment

Today, a is rarely a simple exchange of bills. It involves a complex "value chain" of participants: