International Journal of Scientific Research and Engineering Development

This article explores the economic trade-offs between centralized and decentralized financial systems. Centralized finance (CeFi) relies on regulated intermediaries such as banks and custodians, offering stability, regulatory oversight, and support for monetary policy. Decentralized finance (DeFi), based on smart contracts and cryptographic protocols, reduces barriers to entry and increases flexibility but introduces technical and operational risks. The paper examines efficiency, risk allocation, financial inclusion, innovation, and international implications, supported by quantitative evidence such as global account ownership, cryptocurrency market capitalization, and total value locked (TVL) in DeFi. The analysis highlights that neither system is categorically superior; effective policy should balance innovation and stability through coordinated, technically informed, and proportionate regulations.