Financial factors drive widening global investment imbalances
Financial factors and valuation shifts have become the primary drivers of expanding global imbalances across 28 major economies, according to a Bank for International Settlements study. The widening gap reflects deteriorating US investment positions alongside asset gains in other nations.
Beyond traditional trade flows
Decomposing net international investment positions across 28 economies representing 85 percent of global GDP reveals that valuation changes and investment income dominate cross-border imbalances over both short and long horizons.
While trade balances retain significance over extended periods, asset price appreciation on foreign holdings has driven the expansion of external balance sheets since 2010.
This financial expansion has supported domestic economic growth in creditor countries while simultaneously deepening the net external liability position of the United States.
Consequently, these accumulated valuation gains have heightened the vulnerability of major economies to global financial market disruptions.
Four shocks and their spillovers
Simulations of adjustment triggers demonstrate that unwinding these imbalances would generate substantial international spillovers.
Stress tests evaluating dollar depreciation, global equity repricing, higher interest rates, and a 50 percent cut in trade deficits indicate that conventional policy proposals achieve limited rebalancing.
A correction in US equity markets would produce particularly widespread negative effects across foreign economies through interconnected asset exposures.
Targeting trade misses the core risk
Focusing on trade deficits misdiagnoses modern cross-border exposures.
Because valuation shifts drive international balance sheets far more than trade flows, conventional tariff measures cannot resolve these imbalances.
Supervisors must prepare for balance-sheet contagion rather than counting on trade adjustments.