#129 - Exchange Control: The Fallacy of Capital Flight in a Digital Rand Economy
A guest post by Farzam Ehsani, cofounder and CEO of Valr on South Africa's capital control system and its intersection with the digital asset economy.
Illustration by Mary Mogoi (New Link)
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A Bit of Context Before Farzam’s Article
Charles Kindleberger spent the early part of his career working on international monetary questions at the Federal Reserve Bank of New York and, later, the Federal Reserve Board. By 1970, he had become one of the most important scholars of the international monetary system.
One of the systems that interested him was the Eurodollar market: dollar deposits created by banks outside the United States and beyond the Federal Reserve’s direct regulatory perimeter. These offshore dollars had emerged without a central blueprint. International trade and finance needed more dollars than the formal American banking system was supplying, so banks elsewhere began creating dollar-denominated claims of their own.
Kindleberger described the process this way:
“The evolution of the Eurodollar market into a world capital centre, detached from the dollar in space and from Europe in currency… is a product not of planning by economists but of evolutionary practice. This suggests that the forces of integration in the world, of goods markets, of markets for people, and of markets for capital are stronger than the political boundaries which divide countries.”
The excerpt appears in Nik Bhatia’s book, Layered Money.
I wrote about Eurodollars a few weeks ago because they provide a useful way of understanding Tether. USDT differs legally and structurally from a Eurodollar bank deposit. The functional rhyme is difficult to miss. Both systems allow institutions outside the United States to create and circulate dollar-denominated claims in response to global demand for dollars. Tether has become a digital extension of this offshore dollar system. It provides access to dollar value for people and businesses that may never open a US bank account. It can be held in Lagos, Johannesburg or Cairo, transferred on a Sunday and moved between institutions without passing through the correspondent-banking chain each time.
Kindleberger’s deeper observation was that financial integration frequently moves faster than the institutions governing it. Technology has made that tension more visible. Many national frameworks still assume that cross-border value moves through banks, authorised foreign-exchange dealers and accounts whose location can be identified. Digital Assets allow a dollar-denominated claim to sit in a software wallet controlled by someone whose location may be difficult to establish. This is an issue that many African countries will eventually face. Governments want cheaper cross-border payments, deeper capital markets and participation in the global digital economy. They also want to manage foreign-exchange demand, preserve monetary autonomy and retain visibility over capital moving across their borders. A regulatory framework can license crypto providers for consumer protection and anti-money-laundering purposes, only to discover that those same providers have created a new channel for capital mobility.
South Africa is becoming the clearest early example of this collision. It has a floating currency and sophisticated financial markets, alongside residual exchange controls and one of the continent’s most developed crypto regulatory regimes. Its regulators are now trying to determine where the domestic crypto market ends and a cross-border capital transaction begins.
Farzam Ehsani has been closely involved in that evolution. He is the co-founder and CEO of VALR, South Africa’s largest crypto exchange and one of the continent’s largest by trading volume. Before VALR, he led blockchain work at RMB and FirstRand and served as the inaugural chair of the South African Financial Blockchain Consortium. Reuters profiled VALR’s scale and regulatory position here.
His commercial interest is explicit: VALR and its customers will bear many of the costs created by the proposed capital-flow framework. That also gives him a close view of where the framework collides with how digital assets operate in practice.
In the essay below, Farzam makes the broader case that South Africa should finally abolish exchange controls and replace pre-approval with reporting, transparency and enforcement. I do not agree with every step in his economic argument, particularly his treatment of what constitutes capital flight. But the question he raises will travel well beyond South Africa: what happens when nationally bounded monetary frameworks meet assets designed to circulate globally? The original can be found here.
Exchange Control: The Fallacy of Capital Flight in a Digital Rand Economy
1. Back to First Principles
Before defending or abolishing exchange control, we should ask a simpler question: what is the policy actually trying to achieve? Exchange control is usually justified by three main policy objectives. First, to control the movement of financial and real assets into and out of South Africa and prevent any unauthorized export of capital. Second, to protect South Africa’s foreign currency reserves. Third, to avoid interfering with the efficient operation of the commercial, industrial and financial system.
These sound reasonable. But the first two objectives rely on a mental model that is increasingly outdated. They imagine capital as something that can physically leave the country, like gold bars, banknotes, or bearer instruments crossing a border. They imagine the rand as something the state must defend by spending scarce dollars. They imagine private citizens or businesses converting rand into dollars as a direct loss to South Africa. But in a modern digital banking system, that is not what happens.
2. The First Fallacy: Digital Rand Cannot Leave South Africa
Most rand today are not physical notes and coins. They are digital entries on the balance sheets of South African banks. In fact, over 97% of South Africa’s money supply is digital. A digital rand exists because a South African bank records a rand liability to a customer. It cannot be placed in a suitcase. It cannot be loaded onto a ship. It cannot exist inside a New York, London, Dubai, or Singapore bank account as rand unless there is a South African banking relationship behind it. So when someone says “money left South Africa,” we need to ask: what exactly left?
Take a simple example. Person A has R1 million in a South African bank account. He wants to pay a hospital abroad. He goes to his bank and says: “Exchange my rand for dollars and send the dollars to the hospital.” From Person A’s perspective, he has externalized R1 million. His South African bank balance is gone, and the foreign hospital receives dollars. But Person A cannot buy dollars unless someone else sells dollars. Party B gives up dollars and receives rand. The rand has not left South Africa. It has moved from Person A’s South African bank account to Party B’s South African bank account, or to a South African rand account held through the banking system.
In terms of exchange control, from a micro perspective, Person A has externalized value, while Party B has internalized value. However, from a macroeconomic perspective, the rand did not leave. No capital was externalized from the system. Only ownership changed. That distinction matters. Exchange control often treats individual externalization as if it were macroeconomic externalization. But those are not the same thing.
3. What Actually Changes: Price and Ownership, Not the Physical Location of Rand
Of course, something does happen when many people want to buy dollars. The price of dollars in rand may rise. In other words, the rand may depreciate. But that is an exchange-rate price adjustment, not a physical draining of rand from the country. In a floating exchange-rate system, that price is supposed to adjust. The exchange rate is the market-clearing mechanism between those who want rand and those who want foreign currency.
If more people want dollars than rand at a particular price, the rand weakens until someone is willing to hold rand at the new price. That could have consequences. It may affect inflation. It may affect confidence. It may require credible monetary and fiscal policy. However, that is not the same as saying “capital has left South Africa” in the simplistic sense. The real policy problem is not that rand disappears or capital has been externalized. The real policy problem is whether South Africa is attractive enough that people want to hold rand assets in the first place.
4. The Second Fallacy: Private FX or Crypto Conversion Does Not Automatically Deplete SARB Reserves
The second argument for exchange control is that South Africa must protect its foreign currency reserves. This also needs to be unpacked. Foreign currency reserves are not the country’s private stock of dollars. They are official public-sector foreign assets held by the SARB and, in relevant respects, National Treasury. They are used for external obligations, confidence, liquidity, and shock absorption. They are not automatically touched every time a South African buys dollars, invests offshore, pays a foreign supplier, or buys a crypto asset.
In a normal private FX transaction, a willing buyer and willing seller exchange rand and foreign currency. The SARB’s reserves are not involved unless the SARB chooses to intervene, or unless the state itself is making foreign-currency payments. This is crucial. And the exact same principle applies to crypto transactions as it does to FX transactions. If the SARB were running a fixed exchange rate, then it might have to sell reserves to defend a particular rand level. But South Africa does not have a fixed exchange rate any more. South Africa has moved to a floating exchange rate. The SARB’s own policy is not to defend a fixed rand price. It may smooth disorderly market conditions, but it does not target a particular exchange-rate level.
So the idea that exchange control is necessary to prevent ordinary South Africans from draining SARB reserves misrepresents how the system works.
5. The Historical Lesson: Defending the Rand is Expensive and Ineffective
South Africa has already learned the danger of trying to defend the rand. In the late 1990s, the SARB attempted to defend the currency under very difficult market conditions. The result was costly and unsuccessful. Interest rates rose sharply. The economy suffered. The rand weakened anyway. Losses ultimately had to be absorbed by the public sector. That experience supports the modern policy position: the exchange rate should float, and macroeconomic credibility should be built through price stability, fiscal sustainability, and institutional confidence. If the rand weakens, the sustainable answer is not to “trap” capital. The sustainable answer is to make South Africa more investable.
6. What Exchange Control Really Does
Exchange control does not keep digital rand physically inside South Africa. They are already inside South Africa by design.
What exchange control does is something else. The third stated objective is “not to interfere with the efficient operation of the commercial, industrial and financial system”. But this is precisely where the modern framework fails on its own terms. A system of pre-approval, discretion and restriction necessarily interferes with ordinary commercial and financial activity.
It creates friction.
It creates uncertainty.
It gives officials discretion over lawful private transactions.
It makes international investors worry about whether they can get money in and out.
It makes South African entrepreneurs less globally competitive.
It encourages structuring offshore.
It tells the world that South Africa is not fully confident in its own investment proposition.
And that is deeply damaging, because capital is confidence. Capital goes where it is welcomed, protected, respected, and allowed to move.
7. The Liberty Question: What Exactly Are We Restricting, and Why?
There is also a deeper question of economic freedom. If exchange control does not actually prevent macroeconomic capital flight, and if it does not protect SARB reserves in the way people assume, then we must ask: what exactly are we restricting, and why? Exchange control no longer prevents capital from leaving South Africa in any meaningful macroeconomic sense. What it does prevent is freedom: the freedom of citizens to allocate their savings, the freedom of entrepreneurs to build globally competitive companies, and the freedom of investors to enter South Africa with confidence that they can also exit.
A policy that restricts individual liberty may be justified if it clearly protects the public interest. But if the core public-interest justification rests on a model of financial systems from over half a century ago, and has not evolved with how digital money, FX markets, and reserves actually work today, then the policy should be reconsidered. South Africans should be free to save, invest, support family members, build businesses, and participate in the global economy, subject to tax compliance, anti-money laundering rules, sanctions law, and appropriate financial supervision. Those are legitimate public-policy objectives. But they do not require exchange control as a system of pre-approval and restriction. They require a modern system of disclosure, reporting, supervision, and enforcement.
8. The Better Policy Question
The question should not be: how do we stop people from taking money out? The question should be: how do we make South Africa a place where people want to bring money in?
That means strong institutions, sound monetary policy, credible fiscal policy, clear tax rules, effective AML enforcement, and modern reporting systems.
If the concern is tax evasion, enforce tax law.
If the concern is illicit financial flows, enforce AML and beneficial-ownership rules.
If the concern is systemic risk, use prudential and macroprudential tools.
If the concern is financial crime, supervise intermediaries properly.
But do not use a blunt exchange-control architecture intended for problems of a previous age.
9. The Positive Vision
Abolishing exchange controls would not mean abolishing oversight.
It would mean replacing pre-approval, suspicion, and restriction with disclosure, reporting, supervision, and enforcement.
It would signal that South Africa is ready to compete for global capital and is more attractive for foreign direct investment.
It would help entrepreneurs raise capital.
It would encourage companies to domicile in South Africa rather than offshore.
It would increase capital formation.
It would support employment.
It would broaden the tax base.
It would strengthen South Africa’s role as a financial centre for Africa.
And, paradoxically, by making South Africa more open, it would make South Africa more resilient.
10. Abolish exchange control and replace it with a modern framework
Exchange control was created for a different world.
A world of physical bearer assets.
A world of more managed exchange rates.
A world of sanctions, isolation, and scarce reserves.
But South Africa today needs the opposite posture.
We need openness.
We need confidence.
We need investment.
We need to move from a fear-based capital regime to a confidence-based capital regime. Digital rand cannot be packed into a suitcase and taken offshore. SARB reserves are not depleted every time a private person buys dollars. And the rand is not strengthened by forcing people to hold it. The rand is protected by making it worth holding. South Africa should abolish exchange control as a system of pre-approval and restriction, and replace it with a modern framework based on reporting, transparency, tax compliance, AML enforcement, prudential supervision, and the rule of law.
This is not an argument for no oversight. It is an argument for better oversight.
It is an argument that South Africa can protect financial integrity without restricting lawful capital movement. It can protect the tax base without making citizens ask permission to invest. It can protect the financial system without telling the world that capital is welcome only if it leaves by permission. This policy was created for a different era. It is now holding South Africa back.
Nelson Mandela himself envisioned a South Africa without exchange controls. In his 1996 State of the Nation Address, President Mandela said: “In order to improve the investment climate, our monetary authorities are reviewing, on an on-going basis, the timing and pace of lifting existing exchange controls. For us, it is not a matter of whether, but of when, these controls will be phased out.”
Thirty years later, it is time to bring that vision to reality.The future of South Africa will not be built by controlling exits. It will be built by becoming a country people want to enter.
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