Maya
Yields for savings
Dex for trading
DAOs for investments
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The bank also calls central bank digital currencies “kryptonite for crypto” but it is intrigued by decentralized finance, which it says is “potentially more disruptive than Bitcoin.”
From Bank of America Sees DeFi ‘Potentially More Disruptive Than Bitcoin’:
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Right now, the most popular types of DeFi applications include:
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Decentralized Exchanges (DEXs) such as the one I use, Uniswap, which connects users directly so they can trade cryptocurrencies with one another without trusting an intermediary with their money. One popular token traded on these is “wrapped bitcoins” (WBTC), which are a means to send bitcoin across the Ethereum network so that it can be used in defi., although as I write the highest volume comes from the U.S. Dollar “stablecoin” USDC .
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One of the earliest use of smart contracts was for Prediction Markets: Markets for betting on the outcome of future events, such as elections.
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The main use of defi markets is savings and loans. Lending Platforms use smart contracts to replace intermediaries such as banks that manage lending in the middle. This allows for “yield farming”, where lenders lock up tokens from one currency to borrow tokens from another currency (because they think that the value of those tokens will rise).
Yield farming is enabled through over-collateralization, meaning that the borrower must deposit assets with more value than their loan. When the collateralization ratio (value of collateral / value of the loan) falls below a certain threshold, the collateral is liquidated and repaid to lenders. This setup is optimal for speculators who want to obtain leverage. But it also ensures that lenders don’t lose money when borrowers default.
I rather like Coindesk’s description of decentralised finance applications as being “money legos” that can be connected together to build new, sophisticated and (it has to be said) complex financial products to trade in the defi marketplaces.