This paper addresses firstly why people have to use fiat money and then why they are rationally willing to accept it from the perspective of general equilibrium by using dynamic game to determine agents' expectation of its purchasing power in unrevealed future. Its model formulates the process...

In an infinite-time decentralized sequence economy, agents use fiat money to bridge markets as if they make trades in a centralized economy, to avoid huge transaction cost that all agents' going together must incur. The model in this paper formulates the process how agents decide the fiat...

Kiyotaki-Wright (1991, 1993) ensured fiat money's essentiality; but they abstract competition away. Therefore, Lagos-Wright (2005) added a frictionless centralized market to their model; however, their method should be improved. This paper directly substitutes perfectly competitive decentralized...

Privately issued money can benefit consumers in many ways, particularly in the areas of value stability and product variety. Decentralized currency production can benefit consumers by reducing inflation and increasing economic stability. Unlike a central bank, competing private banks must...

This paper compares estimates of the resource costs of monetary gold accumulation under the classical (1880-1914) gold standard with estimates of the resource costs associated with gold “investment” in the post-Bretton Woods era (1972-present) for the United States. While the costs...

Cryptocurrency is private money and is costly to produce. In this paper, I ask whether cryptocurrency can serve as a medium of exchange, and whether it can coexist with fiat money as a widely accepted medium of exchange. To answer these questions, I develop two search-theoretic models: a model...

Existence and efficiency of general equilibrium with commodity money is investigated in an economy where N commodities are traded at N(N-1)/2 commodity-pairwise trading posts. Trade is a resource-using activity recovering transaction costs through the spread between bid (wholesale) and ask...

Walrasian general competitive equilibrium is considered in a simple example of an exchange economy with commodity-pairwise trading posts and transaction costs. Budget balance is enforced at each trading post separately. Commodity-denominated bid and ask prices at each post allow the post to...

In an economy with commodity-pairwise trading posts and transaction costs, commodity money is endogenously determined in general equilibrium. Absent double coincidence of wants, the low-transaction cost commodity (with the narrowest proportional bid/ask price spread) becomes the common medium of...