When a valuation of a company is made, it is done by modelling future cash flows and discounting them to the present-day value in a discounted cash flow model. Fundamentally, this relies on the estimates of future cash... 
As the non-fungible token (NFT) space continues to grow, the blockchain analytics Nansen has published a leaderboards list of the top wallets (NFT collectors) that interact with NFTs on a regular basis. The analytics firm combed through...
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Though not the oldest form of currency, some form of shell money appears to have been found on almost every continent. The shell most widely used worldwide as currency was the shell of Cypraea moneta, the money cowry.