The Roundhill Weekly T-Bill ETF offers low-risk exposure to 0–3 month Treasuries with weekly income and a 0.19% fee. Check ...

Abstract: As carbon emissions reduction is becoming increasingly important for sustainable development and carbon neutrality targets, the concept of carbon emission market has been recently proposed ...

Abstract: With the rapid development of blockchain technology, the widespread adoption of smart contracts—particularly in decentralized finance (DeFi) applications—has introduced significant security ...