Contagion: How Crises Spread

How financial shocks spread from one country to others through trade, banks, investors and confidence, with examples from 1997, 2008 and the 2013 taper tantrum.

Financial crises rarely stay in one place. A shock in one country can spread quickly to others. This is called contagion.

Channels of contagion

Trade: a recession in one country reduces imports from others.
Banks: banks with losses in one country cut lending elsewhere.
Investors: funds facing losses sell assets in other markets to raise cash.
Confidence: investors reassess risk in similar countries, even without direct links.
Currency pegs: a devaluation in one country pressures neighbours.

The 1997 Asian crisis

Starting in Thailand in July 1997, the crisis spread to Indonesia, South Korea, Malaysia and the Philippines, and later affected Russia and Brazil. Investors pulled money from countries seen as similar.

The 2008 global crisis

The US housing and banking crisis spread worldwide through banks’ exposure to US mortgage securities, collapsing trade and frozen funding markets. India’s growth slowed, and foreign investors pulled money out.

The 2013 taper tantrum

In May 2013, US Federal Reserve chair Ben Bernanke hinted that the Fed might slow, or “taper”, its bond purchases. Investors rushed out of emerging markets. The Indian rupee fell sharply to record lows by August 2013. India was grouped among the “Fragile Five”, economies with large current account deficits and high inflation. The RBI, under new governor Raghuram Rajan, took measures including special deposit schemes to attract foreign currency.

Reducing vulnerability

Lower current account deficits.
Foreign exchange reserves as a buffer. India built large reserves after 2013.
Stronger banks and less short-term foreign borrowing.
Flexible exchange rates.
Swap lines and international support.

Lessons

Countries with strong fundamentals may still be hit, but they recover faster. Contagion shows the importance of both good domestic policy and global cooperation.

The taper summer

In summer 2013, a few words from the US Fed chair led global investors to sell Indian bonds and shares. The rupee fell to record lows, raising the cost of imported fuel and electronics for Indian households, though nothing had changed inside India overnight.

Thinking only countries with bad policies are hit by crises

Contagion can hit countries through investor sentiment and financial links, though strong fundamentals help limit damage.

Key takeaways

Contagion spreads crises through trade, banks, investors and confidence.
The 1997 Asian crisis spread from Thailand across Asia.
The 2013 taper tantrum sent the rupee to record lows.
Reserves, lower deficits and strong banks reduce vulnerability.