What a devalued yuan means to the rest of the world

On August 11th, China devalued its currency, the yuan, by 1.9%. The next day it devalued it by a further 1.6% and on the next day by a further 1.1%. Even though the total devaluation was relatively small, especially given a much bigger revaluation over the previous three years (see chart below), traders in world markets greeted the news with considerable pessimism. Stock markets around the world fell. For example, the US Dow Jones was down by 1.1%, the FTSE 100 was down by 2.5% and the German DAX by 5.8%.

There are three major concerns of investors about the devaluation. The first is that a weaker yuan will make other countries’ exports more expensive in China, thereby making it harder to export to China. At the same time Chinese imports into the rest of the world will be cheaper, thereby making it harder for domestic producers to compete with Chinese imports.

The second is that cheaper Chinese imports will put downward pressure on prices at a time when inflation rates in the major economies are already below target rates. The fear of deflation has not gone away and this further deflationary twist will intensify such fears and possibly dampen demand.

The third is that the devaluation is taken as a sign that the Chinese authorities are worried about a slowing Chinese economy and are using the devaluation to boost Chinese exports. The rapidly expanding Chinese economy has been one of the major motors of the global economy in recent years and hence a slowing Chinese economy is cause for serious concern at a time when the global economy is still only very slowly recovering from the shock of the financial crisis of 2007–8

But just how worried should the rest of the world be about the falling yuan? And will it continue to fall, or could this be seen as a ‘one-off’ correction? What effect will it have on the macroeconomic policies of the USA, the eurozone and other major countries/regions? The following articles analyse Chinese policy towards its currency and the implications for the rest of the world.

China weakens yuan for a third straight day on Thursday CNBC, Nyshka Chandran (13/8/15)
Markets reel as investors fear worst of Chinese slowdown is yet to come The Telegraph, Peter Spence (12/8/15)
China cannot risk the global chaos of currency devaluation The Telegraph, Ambrose Evans-Pritchard (12/8/15)
Beware a China crisis that could crash down on us all The Telegraph, Liam Halligan (15/8/15)
The curious case of China’s currency The Economist, Buttonwood’s notebook (11/8/15)
China’s yuan currency falls for a second day BBC News (12/8/15)
China slowdown forces devaluation BBC News, Robert Peston (11/8/15)
What the yuan devaluation means around the world BBC News, Lerato Mbele, Daniel Gallas and Yogita Limaye (12/8/15)
China allows yuan currency to drop for third day BBC News, various reporters (13/8/15)
The Guardian view on global currencies: it’s the economy, stupid The Guardian, Editorial (14/8/15)
China’s currency gambit and Labour’s debate about quantitative easing: old and new ways to cope with economic crisis The Guardian, Paul Mason (16/8/15)


  1. By what percentages have the nominal and real yuan exchange rate indices appreciated since the beginning of 2011? Use data from the Bank for International Settlements.
  2. Explain the difference between nominal and real exchange rate indices.
  3. Compare the changes in the yuan exchange rate indices with that of the yuan/dollar exchange rate (see Bank of England Interactive Database). Explain the difference.
  4. How is the yuan exchange rate with other currencies determined?
  5. How have the Chinese authorities engineered a devaluation of the yuan? To what extent could it be described as a ‘depreciation’ rather than a ‘devaluation’?
  6. Why have world stock markets reacted so negatively to the devaluation?
  7. Why, in global terms, is the devaluation described as deflationary?
  8. How much should the rest of the world be worried by the devaluation of the yuan?
  9. Explain the statement by Robert Peston that ‘Beijing has done the monetary tightening that arguably the US economy needs’.
  10. Comment on the following statement by Stephen King of HSBC (see the second Telegraph article below): ‘The world economy is sailing across the ocean without any lifeboats to use in case of emergency.’