DeFi (Decentralized Finance) is a blockchain-based financial system that allows users to access financial services like lending, borrowing, and trading without relying on traditional banks or intermediaries.
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DeFi operates using smart contracts, which are self-executing agreements written in code and stored on the blockchain. These contracts automate transactions and remove the need for middlemen like banks, brokers, and exchanges, reducing fees and increasing efficiency. DeFi applications (dApps) are built on decentralized networks like Ethereum, allowing users to interact with financial services directly from their wallets.
For example, instead of depositing money in a traditional bank to earn interest, users can lend their cryptocurrencies on platforms like Compound or Aave, which offer interest in return. Similarly, decentralized exchanges (DEXs) allow users to trade cryptocurrencies without relying on centralized exchanges. Stablecoins, which are pegged to traditional assets like the U.S. dollar, are also used to reduce volatility in DeFi applications.
DeFi also provides greater transparency, security, and privacy compared to traditional financial systems. Since all transactions are stored on the blockchain, they are publicly accessible and immutable, meaning they cannot be altered once recorded.
Short example:
Suppose an investor wants to earn interest on their Ethereum (ETH). Instead of using a traditional bank, they can lend their ETH on a DeFi platform like Compound or Aave, where a smart contract handles the transaction and earns them interest in return.
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