The Great Debate
For years a debate has raged in monetary economics over the credibility of
the theory that a more stable monetary system would emerge were the system to
allow for concurrent currencies operating under no legal restrictions.
One side of the debate, represented most prominently by Milton Friedman,
believes that the emergence and acceptance of a new currency would be hindered
— and its ability to supplant an incumbent currency all but eliminated — by network
effects and/or switching
costs.
In general, a network effect results when the desirability of an item
depends upon the number of others using it. Since money is demanded due to its
acceptability among others for future payment, money would appear to have
network effects.
The other side of the debate, represented most notably by Friedrich Hayek,
blames legal restrictions for preventing people from switching currencies
during times of poor monetary management in the incumbent money.
In Hayek’s ideal system there was no contractual obligation on the part of
the money issuers to redeem their notes with some underlying commodity. The
unbacked, irredeemable notes then trade against each other and other
commodities at fluctuating exchange rates on the open market.
It was Hayek’s belief that competition for customers would force issuers of
particular currencies to maintain a stable exchange rate and desist from
engaging in reckless monetary practices.
The Somali Shilling
Most economists have come to accept Friedman’s position. There has,
however, until recently, been no empirical illustrations of the validity of
each opposing view. Any example of poor monetary management in the past has
been marred by significant legal restrictions on the use of other currencies.
The Hayek versus Friedman debate cannot be solved empirically; however, a
real-life example of concurrent currencies circulating absent any legal
restrictions would contain some heuristic value.
The real-life example is Somalia. The collapse of Mohamed Siad Barre’s
Democratic Republic of Somalia in 1991 gave us the unique opportunity to
observe concurrent currencies absent any legal restrictions in practice.
Along with the collapse of the Somali government was the collapse of the
Somali Central Bank. In the wake of no central banking authority, four new
currencies came into circulation: the Somaliland Shilling, the Na’ Shilling,
the Balweyn I, and the Balweyn II.
Since 1991, Somaliland, a self-declared autonomous region, established its
own central bank, and declared the Somaliland Shilling legal tender. For this
reason Somaliland and its respective currency are omitted from our
consideration.
The Na’ shilling, on the other hand, would appear to contain the very network
effects that Friedman had warned of. Introduced first in 1992 and again
reissued in 2001, it circulates mainly within a single clan, and has failed to
gain any significant foothold elsewhere.
In 1997, a south Mogadishu leader issued the Balweyn I note, which is a
forgery of the pre-1991 central bank note. Similarly, a Puntland administration
(central bank) issued the Balweyn II, another forgery of the pre-1991 Somali
Shilling (SoSh). Both notes are widely accepted forgeries and continue to be
issued.
Although the Balweyn notes can be distinguished from each other and the
pre-1991 currency, the Somali public have treated them all as the same currency
— which we will call the Somali Shilling. This would suggest that all three
currencies, similar in appearance, have bypassed the problem of network effects
and/or switching costs because of their similarities.
In the span of four years the Somali Shilling depreciated by a staggering
67 percent. Despite this fact the Somali Shilling remained the most used currency
in Somalia. The question is why did the Somali public continue to use a
currency which was experiencing such horrendous inflation? The reason boils
down to network effects and/or switching costs.
Keep in mind that within the Somali Shilling there were essentially three
currencies operating under no network effects or switching costs. Was there any
competition for market share among these three currencies? In short, no. Why?
The Somali Shilling was essentially three currencies: the pre-1991 SoSh,
the Balweyn I, and the Balweyn II. Out of these three currencies the pre-1991
SoSh was the most stable. Unfortunately it was also out of production and
high-quality forgeries were impossible to produce. The lack of enough durable
notes in circulation prevented it from gaining market share.The number of notes
in circulation continued to decline because they were too fragile to be used in
trade.
The Balweyn I and Balweyn II, on the other hand, were spectacularly
unstable, depreciating rapidly, and competing for market share. This fact,
however, failed to allow the price of either of these currencies to be
regulated. Why? This created a peculiar situation where, rather than
competition between monies limiting the amount of inflation and seigniorage in
each, it led to a tragedy of the commons — a situation where there has been
competition for seigniorage in the “same” currency. Or, the producers of these
currencies might have thought it would be more profitable to run the currency
down into, what has become, a commodity money — a money worth its paper, ink,
and transport costs.
Whatever the reasons for the Balweyn I and Balweyn II not becoming more
stable due to competition, they were nonetheless accepted before other
competing currencies. This leaves us with the question as to why did Somalis
continue to trade using two inferior currencies (the Balweyn I and Balweyn II)
as opposed to other, better managed, currencies operating inside and outside of
Somalia? Well, it would be hard to argue it was due to legal restrictions.
Instead, we must deduce that Somalis had simply become accustomed to
trading using the familiar Somali Shillings. Switching currencies was an
option, but the Somalis rebuffed this idea as costly and unattractive.
Conclusion
In the end we are forced to conclude that the “success” of the Balweyn I
and Balweyn II notes is probably the result of network effects and/or switching
costs, and is most definitely not due to their superior stability.
Now, although it must be stressed that empirical analysis says nothing
about Friedman’s and Hayek’s debate in general, we can say that in the very
unique case of Somalia, that Friedman, at least, appears to have been correct,
and network effects and/or switching costs have, in fact, prevented superior
currencies from gaining market share.
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