Hank Schuler Model

 In their seminal work, Currency Boards for Developing Countries: A Handbook (1994), economists Steve H. Hanke and Kurt Schuler argue that central banking in developing or crisis-prone economies often leads to inflation, currency depreciation, and fiscal mismanagement.

They propose the complete replacement of discretionary central banking with an Orthodox Currency Board as the superior framework for monetary stability and fixed exchange rate management.

1. What the Book Says on Monetary Policy

Under the Hanke-Schuler framework, an orthodox currency board has no discretionary monetary policy. The monetary authority completely gives up monetary independence in favor of an automatic, rule-based mechanism.

• Imported Monetary Policy: Instead of attempting to manage money supply, set domestic interest rates, or target national inflation, the currency board "imports" the monetary policy and credibility of the anchor currency’s central bank (e.g., the U.S. Federal Reserve or the European Central Bank).

• Passive Supply Adjustment: The domestic monetary base expands or contracts strictly in response to market demand—increasing when the public sells anchor currency to the board and decreasing when the public buys anchor currency from the board.

• No Open Market Operations or Debt Monetization: The board is legally prohibited from buying government debt, financing fiscal deficits, or conducting discretionary open market operations.

• No Lender of Last Resort: The currency board does not bail out failing commercial banks or act as a lender of last resort. Commercial banks must maintain their own liquidity buffers, establish lines of credit with international institutions, or rely on foreign branch banking.

2. The Best Way to Manage a Fixed Exchange Rate

Hanke and Schuler draw a sharp distinction between a "pegged" exchange rate managed by a traditional central bank and a "fixed" exchange rate managed by an orthodox currency board.

According to the authors, traditional central bank pegs fail because central banks attempt to maintain a target exchange rate while simultaneously exercising discretionary domestic monetary policy (violating the Impossible Trinity). When a crisis hits, markets know the central bank will run out of reserves or print money to monetize debt, triggering a speculative attack and devaluation.

The best and most credible way to manage a fixed exchange rate, as outlined by Hanke and Schuler, is through a rigid, rule-bound Currency Board system built on 5 pillars:

                       +-----------------------------------+
                       |    ORTHODOX CURRENCY BOARD        |
                       +-----------------------------------+
                                         |
     +-------------------+---------------+---------------+-------------------+
     |                   |               |               |                   |
v         v               v               v                   v
[Fixed Rate]      [100%+ Backing]  [Convertibility]  [Zero Discretion]   [Fiscal Solvency]
Legally fixed     Monetary base    Unrestricted      Automatic market   No printing money
to strong foreign 100-110% backed   2-way exchange    expansion/         for government
anchor currency   by foreign assets on demand        contraction        deficits

Pillar 1: Legally Mandated Fixed Exchange Rate

The local currency is fixed by law to a stable, internationally traded foreign "anchor currency" (such as the US Dollar or Euro) at an unalterable parity rate.

Pillar 2: 100% (or 105–110%) Foreign Reserve Backing

The currency board must hold high-quality, interest-bearing assets denominated in the anchor currency equal to at least 100% (ideally 105–110% to cushion against asset value fluctuations) of all outstanding monetary liabilities (notes, coins, and bank reserves). Every unit of local currency in circulation is fully backed by real foreign reserves.

Pillar 3: Full, Unrestricted Two-Way Convertibility

The public and financial institutions possess an absolute, legal right to exchange domestic currency for the anchor currency (and vice versa) at the fixed rate at any time, with zero capital controls or foreign exchange restrictions.

Pillar 4: Strict Statutory Rule (Zero Discretion)

The currency board operates as a passive, software-like exchange office. It cannot alter the exchange rate, change reserve ratios, or inject unbacked money into the economy. This removes political influence and prevents central bankers from attempting fine-tuning.

Pillar 5: Complete Separation from Fiscal Deficits

The board is legally insulated from the ministry of finance. Governments cannot order the board to fund state budgets, forcing the government to impose strict fiscal discipline and fund expenditure entirely through taxes or market borrowing.

Comparison: Central Bank Peg vs. Orthodox Currency Board

Feature	Central Bank "Pegged" Rate	Orthodox Currency Board "Fixed" Rate
Monetary Policy	Active / Discretionary	Passive / Non-existent
Reserve Backing	Partial or variable	Minimum 100% in foreign assets
Convertibility	Often restricted during stress	Unlimited 2-way convertibility
Lender of Last Resort	Yes (can print unbacked money)	No (commercial banks manage liquidity)
Fiscal Financing	Can monetize government debt	Strictly forbidden by law
Credibility & Stability	Low (prone to speculative attacks)	High (eliminates devaluation risk)

Summary

In the Hanke-Schuler view, the only way to make a fixed exchange rate work long-term is to eliminate human discretion. By tying money creation 1-to-1 with foreign reserves, a country eliminates currency crisis risk, lowers interest rates to match the anchor country, and establishes near-instantaneous monetary credibility.