If a free bank ran out of gold in a panic it would shut down and be liquidated, but note and deposit holders often received a complete payout after some delay from the bank's assets and capital, which is why Scotland's overall loss figures were very modest despite occasional individual failures.

The Scottish 'option clause' let banks suspend note redemption while paying note holders the maximum legal 5% interest during suspension, converting the note into a small bond; it developed to defend against rival banks staging note 'raids,' and was an incentive-compatible device never actually used against customer runs.

U.S. banks lost their right to issue notes in two Civil War stages: state banks were taxed out of note issuance, while federally chartered National Banks could only issue notes if backed more than fully by U.S. government securities—a design meant to finance the war, not to improve the monetary system.

A monopoly note issuer escapes the reserve-drain discipline because its notes get treated like reserves by other banks even under a gold standard, allowing it to expand with impunity and encouraging all other banks to expand as well.

In the Scottish free banking system until 1845, total losses suffered by banknote holders were miniscule compared to the losses borne mostly by taxpayers from bank failures in modern central-banking times.

Free banking is fractional reserve banking; in Scotland circa 1820 typical banks held gold reserves of only one to two percent because public faith was so high that almost no one redeemed notes—people actually preferred to deposit gold guineas in exchange for trusted bank paper.

The 'banking is too important to be left to the private sector' argument is weak because almost everything important (trade, food, agriculture) is left to markets; the real question is whether government involvement makes the sector work better.

Historically, under free banking, different banks issued notes with their own names but all represented claims to the same underlying gold standard, creating a uniform monetary standard without a monopoly issuer of paper money.

The Fed was essentially just 12 banks set up to issue currency when laws prevented national and state banks from doing so; there was nothing magic about it—the same problem could be solved by simply letting existing banks issue currency.

Under competitive note issuance, an individual bank that over-issues faces a reserve drain: notes it issues are received and returned for redemption by rival banks, draining its reserves, which strictly limits how much currency any single bank can create—the same discipline that constrains deposit creation today via check-clearing.

In free banking, a private clearinghouse acts as a banker's club that detects banks lending too aggressively before the public does, expelling them and prompting other banks to refuse their notes—as happened to the Ayr Bank in Adam Smith's day, which collapsed quickly with losses borne mainly by its shareholders.

Bank capital is the free-banking counterpart to deposit insurance: losses from bad loans are absorbed first by shareholders' capital, and only after capital is exhausted do depositors and note holders suffer—so customers choose well-capitalized banks for safety.

A bank note, unlike a deposit account, is a financial asset traded in a secondary market and priced by expert market makers, so any doubt about a bank's solvency causes its notes to trade at a discount immediately—giving note holders faster warning signals than a car buyer gets about product quality.

In a free banking system, customers face two screening decisions—which bank to entrust with their money, and which other banks' notes their bank accepts—so a bank's willingness to accept another's notes signals that bank's safety, and banks not in good standing get weeded out of the system.

Free banking means banking conducted without special regulations, treated like any other industry producing real goods, requiring no special government role beyond ordinary contract enforcement, especially under a commodity monetary base like a gold standard.

Banks in a free banking system can do everything central banks/governments do in the monetary system except contribute to crises, which government agencies are particularly good at doing.

Government interference with money and banking long predates the Federal Reserve and other central banks; the U.S. government wielded a heavy hand in banking well before 1913.

Two specific pre-Fed regulations—the lack of branch banking (forcing single-office unit banks) and heavy restrictions on banks' ability to issue currency—caused much of the financial chaos that later served as the rationale for creating the Fed.

Because National Bank notes had to be backed by government securities, as the government retired its post-Civil War debt it became exceedingly costly to supply currency, so the currency supply shrank even as the country grew rapidly, causing severe currency shortages and financial crises in the late 19th and early 20th centuries.

The option clause is incentive-compatible: if correctly designed with the right interest rate, it only pays a bank to invoke it (rather than wind up) when the bank is actually solvent but facing an irrational panic; an insolvent bank with bad loans gains nothing from invoking it and simply shuts down—so it creates no moral hazard.