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Global money flows: how capital moves between countries
· Concept
Fact, law or dataA rule, statute, definition or measured number.
Money crossing borders to buy goods, stocks, bonds, companies and property, or to make loans and send money home.
See it on the Money & Finance map →How it works
Every cross-border payment is part of these flows: a Korean pension buying Apple shares, a Japanese bank buying Treasuries, a German firm building a plant in Ohio, a migrant wiring pay to Mexico. Flows come as portfolio investment (stocks and bonds), direct investment (control of a business), bank lending, remittances and central-bank reserves. Currency trading alone averages about $9.6 trillion a day (BIS, April 2025). Most of it is priced and settled in dollars.
Why it matters
Flows move exchange rates and interest rates, finance the US trade deficit, and can flood or drain a country within weeks, as Korea learned in 1997.
Think of it like
Like tenant demand in a submarket: when capital wants in, values rise and money is cheap; when it leaves, prices fall fast.
Facts, rules and data
National balance-of-payments accounts kept to IMF standards, Treasury's TIC data on securities flows, BIS banking and currency-trading surveys, and UNCTAD's direct-investment reports.
Debates and risks
Recorded flows do not add up worldwide; tax havens, custodians and reporting errors hide who really owns what.
Inside this (8)
- Balance of payments: current account vs. financial account
- Hot money and capital flight: money that flees in a panic
- Eurodollars: the offshore dollar banking system
- Foreign holders of US Treasuries (TIC data): Japan, UK, China
- Central banks' FX reserves: about $13 trillion, ~57% in dollars
- The 'global savings glut': trade surpluses recycled into US assets
- Sovereign wealth funds: nations' investment portfolios
- The carry trade: borrowing in low-rate currencies to buy high yields
Connections (7)
▸Global money flows: how capital moves between countries push and pull Exchange rates and currency marketsFact, law or data
The connection
To buy US stocks or Treasuries, a foreign investor must first buy dollars, which pushes the dollar up; selling US assets and bringing money home pushes it down. When the Fed hiked in 2022, inflows lifted the dollar to a 20-year high; in 2025, as foreigners hedged or trimmed US holdings, the dollar fell about 9%.
When and why
In the currency market, about $9.6 trillion a day (BIS, April 2025), centered in London, New York, Singapore, Hong Kong and Tokyo.
How we know
BIS triennial surveys, Treasury TIC flow data and academic studies linking portfolio flows to currency moves.
Debates and risks
Short-term currency moves remain hard to forecast; since Meese and Rogoff (1983), models often fail to beat a simple random-walk guess.
▸Global money flows: how capital moves between countries run mostly through The US dollar as the world's reserve currencyFact, law or data
The connection
Most cross-border borrowing, trade invoicing and currency trading uses dollars even when no American is involved: a Korean shipbuilder selling to a Brazilian buyer typically bills in dollars. The dollar sits on one side of about 89% of currency trades, so flows between two other currencies usually pass through dollars.
When and why
Worldwide since the 1944 Bretton Woods system; measured in the BIS April 2025 survey and the Fed's annual report on the dollar's international role.
How we know
BIS currency-trading surveys, SWIFT payment data and research on dollar trade invoicing by Gita Gopinath and others.
Debates and risks
Whether sanctions, US deficits and new payment systems will gradually pull flows away from the dollar is debated; so far change is slow.
▸Global money flows: how capital moves between countries pour heavily into US Treasury securitiesFact, law or data
The connection
Treasuries are the deepest, most liquid safe asset, roughly $30 trillion of tradable debt, so foreign central banks park reserves there and private investors flee to them in scares. Foreigners held about $9.3 trillion in June 2026. There are exceptions: in March 2020 and April 2025, Treasuries were sold alongside riskier assets.
When and why
Through primary dealers and custodians, mainly in New York, London, Tokyo, Brussels and Luxembourg.
How we know
Treasury TIC data on foreign holdings and purchases, plus auction results showing the share won by 'indirect' bidders, mostly foreign.
Debates and risks
After April 2025, when yields rose and the dollar fell together, analysts debated whether Treasuries' safe-haven status is eroding.
▸Remittances and the 1% US remittance tax (2026) are a steady, crisis-resistant part of Global money flows: how capital moves between countriesMainstream view
The connection
Migrants send part of their pay home in small transfers, about $685 billion to low- and middle-income countries in 2024 (World Bank estimate). Unlike hot money, these flows tend to hold up or even rise when the home country suffers a crisis, because families need help. In Guatemala, Honduras and Nepal they exceed 15% of GDP.
When and why
The US is the largest sending country; Mexico received about $65 billion in 2024. A 1% US excise tax on cash-funded transfers began January 1, 2026.
How solid is the link?
World Bank and KNOMAD migration briefs, central-bank data such as Banco de México's, and IMF balance-of-payments records.
Debates and risks
Informal channels like hawala or carried cash go unrecorded, so true totals may be much higher; the 2026 tax's effect is not yet clear.
▸Balance of payments: current account vs. financial account is the scorecard of Global money flows: how capital moves between countriesFact, law or data
The connection
Every cross-border transaction is booked twice. If the US imports more than it exports, the extra dollars sent abroad come back as purchases of US assets. So the financial account, which totals direct, portfolio, bank and reserve flows, is the official tally of how capital moved in and out.
When and why
Compiled under IMF rules by most of the IMF's 191 member countries; US figures come from BEA.
How we know
IMF balance-of-payments statistics and BEA quarterly accounts; the 'errors and omissions' line shows the gaps.
Debates and risks
Big gaps remain: errors and omissions are often large, and global flows do not net to zero, suggesting unrecorded money.
▸Global money flows: how capital moves between countries ebb and flow with The federal funds rateMainstream view
The connection
When the Fed raises rates, dollar assets pay more, money flows to the US, the dollar rises, and countries with dollar debts face outflows. When it cuts, money seeks higher yields abroad. Economist Hélène Rey found in 2013 that Fed policy drives a common 'global financial cycle' in flows and asset prices.
When and why
Volcker's hikes before the 1982 Latin American debt crisis, the 2013 'taper tantrum' and the 2022 hikes are classic cases.
How solid is the link?
Rey's 2013 Jackson Hole paper and later IMF and BIS research linking flows to US rates and market volatility.
Debates and risks
How far floating exchange rates protect other countries from the Fed's cycle is debated.
▸Global money flows: how capital moves between countries run heavily on offshore credit from Eurodollars: the offshore dollar banking systemMainstream view
The connection
Much cross-border dollar lending is done by non-US banks, funded with offshore deposits and currency swaps rather than by US banks. Companies in Korea, Brazil or Turkey often borrow dollars from lenders in London or Tokyo. So the cost and availability of offshore dollar funding shapes how much capital moves.
When and why
London since the 1960s; now also Tokyo, Singapore, Hong Kong and Caribbean centers.
How solid is the link?
BIS locational banking statistics and global liquidity indicators.
Debates and risks
BIS researchers estimate over $80 trillion of dollar obligations sit off balance sheet in currency swaps, poorly captured in flow data.