Learning Objectives:
-
Explain the mechanisms of Automated Market Makers (AMMs) and liquidity pools.
-
Understand decentralised lending and borrowing protocols.
-
Describe advanced DeFi concepts such as flash loans and impermanent loss.
6.1 Automated Market Makers (AMMs)
AMMs are a core innovation of DeFi, enabling decentralised trading without order books. The DeFi textbook covers “The idea of Automated Market Makers,” “The Mechanisms of Automated Market Makers,” and “Impermanent Loss” . An AMM uses a mathematical formula to determine the price of assets in a liquidity pool, enabling trades without a counterparty. Key concepts include:
-
Liquidity Pools: Pools of funds locked in smart contracts that facilitate trading.
-
Price Discovery: Prices are determined by the ratio of assets in the pool.
-
Impermanent Loss: The temporary loss in value experienced by liquidity providers due to price fluctuations .
6.2 Decentralised Lending and Borrowing Protocols
Lending and borrowing are core DeFi applications. Key protocols include Maker, Aave, and Compound :
-
Maker: A protocol that enables the creation of DAI, a decentralised stablecoin, through over-collateralised loans.
-
Aave: A lending protocol that enables users to lend and borrow a range of crypto assets.
-
Compound: An algorithmic money market protocol for lending and borrowing.
6.3 Advanced DeFi Concepts
The UCL module covers “consensus algorithms, specifically Proof of Work and Proof of Stake” . Advanced DeFi concepts include:
-
Flash Loans: Uncollateralised loans that must be repaid within the same transaction, enabling arbitrage and other strategies .
-
Miner Extractable Value (MEV): The value that can be extracted by miners or validators by reordering or censoring transactions .