Re-coinage implies that old coins are declared invalid and exchanged for new ones at fixed exchange rates and dates. Empirical evidence shows that re-coinage could occur as often as twice a year within a currency area in the Middle Ages. The exchange fee at re-coinage worked as a monetary tax...

Currently numerous market-driven cryptocurrencies challenge to dethrone the state-controlled supply of fiat money. The outcome hinges on the old question of whether privately produced money with or without government is possible. This paper revisits the issue by looking for insights in the...

A self-enforcing monetary constitution has rules that agents acting within the system will uphold even in the presence of deviations from ideal knowledge and complete benevolence and it thus does not require external enforcement. What would such a constitution look like? Such a constitution, I...

In the Middle Ages, tens of thousands types of uni-faced bracteate coins were struck in the period 1140−1520. The existence of hundreds of small independent currency areas with their own mints in central, eastern, and northern Europe and the strong link between bracteates and periodic...