Decentralized Finance (DeFi): A Survey

Erya Jiang, Bo Qin, Qin Wang, Zhipeng Wang, Qianhong Wu, Jian Weng, Xinyu Li, Chenyang Wang, Yuhang Ding, Yanran Zhang

Abstract: Decentralized Finance (DeFi) is a new paradigm in the creation, distribution, and utilization of financial services via the integration of blockchain technology. Our research conducts a comprehensive introduction and meticulous classification of various DeFi applications. Beyond that, we thoroughly analyze these risks from both technical and economic perspectives, spanning multiple layers. We point out research gaps and revenues, covering technical advancements, innovative economics, and sociology and ecology optimization.