Fahad Saleh(@cryptoeconprof):Permissionless blockchains enable frictionless barter. Specifically, if you can swap your preferred asset positions into whatever unit of account a merchant accepts (e.g., through a DEX) at the point of purchase, then you don't need to hold cash for payments. Economically, this means that blockchains relax the cash-in-advance constraint in monetary economic models.

Fahad Saleh

@cryptoeconprof

Emerson/Merrill Lynch Professor @UF. Advisor @CUSEAS CDFT. FinTech Fellow @CornellMBA. Co-Organizer for CBER Forum. PhD @NYUStern MSc @Columbia BSc @CornellEng.

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Fahad Saleh@cryptoeconprof

2026.09.18 18:51

Permissionless blockchains enable frictionless barter. Specifically, if you can swap your preferred asset positions into whatever unit of account a merchant accepts (e.g., through a DEX) at the point of purchase, then you don't need to hold cash for payments. Economically, this means that blockchains relax the cash-in-advance constraint in monetary economic models.