Web3, the next generation web, promises a decentralized and democratized internet that
puts users in control of their data and online identities. However, Web3 faces significant …

We explain the mechanics of smart contracts. We then highlight the benefits of smart
contracts, such as overcoming commitment problems. We also discuss limitations, such as …

A transaction fee mechanism (TFM) is an essential component of a blockchain protocol.
However, a systematic evaluation of the real-world impact of TFMs is still absent. Using rich …

We present the first systematic approach to detect fake transactions on cryptocurrency
exchanges by exploiting robust statistical and behavioral regularities associated with …

Financial markets are undergoing an unprecedented transformation. Technological
advances have brought major improvements to the operations of financial services. While …

We describe the taxation landscape in the cryptocurrency markets, especially concerning
US taxpayers, and examine how recent increases in tax scrutiny have led to changes in …

Over the past decade, blockchains and cryptocurrencies have taken a central stage in
financial technology (FinTech) innovation. In 2020–2021, as the academic finance and …

While most cryptocurrency financial activity is conducted on centralized exchanges,
decentralized finance (DeFi) has experienced a particular surge with roughly 90,000 users …

Blockchain enables peer-to-peer transactions in cyberspace without a trusted third party.
The rapid growth of Ethereum and smart contract blockchains generally calls for well …

Does the proof-of-work consensus protocol serve its intended purpose of supporting
decentralized cryptocurrency mining? To address this question, we develop a game …