Until the mid-19th century, shortages of currency were common. Moreove
r, a frequent policy response was a prohibition on the export of coins
. We use a random matching model with indivisible money to explain a s
hortage and to judge the desirability of a prohibition on the export o
f coins. The model, although extreme in many regards, represents bette
r than earlier models a demand for outside money and the problems that
arise when that money is indivisible. It can also rationalize a prohi
bition on the export of money. (C) 1997 Elsevier Science B.V. All righ
ts reserved.