Proof-of-Work versus Proof-of-Stake: A Comparative Economic Analysis
开发了一个经济模型，比较工作量证明和权益证明区块链的均衡安全性，发现权益证明在现实参数下更安全，尤其适用于大规模区块链。
Abstract We develop an economic model to compare equilibrium security of Proof-of-Work (PoW) versus Proof-of-Stake (PoS) blockchains. We derive general conditions to determine when PoW blockchains are more secure than otherwise equivalent PoS blockchains and vice versa. Applying real-world parameter values to these conditions, we demonstrate that PoS blockchains are more secure than otherwise equivalent PoW blockchains. Furthermore, we demonstrate that PoS’s security advantage over PoW is particularly salient for high-scale blockchains.