We propose a dynamic theory of banking where the role of deposits is akin to that of productive capital in the classical q-theory of investment. As a cheap source of leverage, deposits typically create value for banks, but the marginal q of deposits can be negative. Deposit accounts commit banks...

We develop a dynamic asset-pricing model of cryptocurrencies/tokens that allow users to conduct peer-to-peer transactions on digital platforms. The equilibrium value of tokens is determined by aggregating heterogeneous users' transactional demand rather than discounting cashflows as in standard...

We develop a dynamic model of platform economy where tokens serve as a means of payments among platform users and are issued to finance investment in platform productivity. Tokens are optimally issued to reward platform owners when the productivity-normalized token supply is low and burnt to...