Foreign exchange intervention and expectation in emerging economies by Ken Miyajima, Working Papers No 414, Bank for International Settlements, June 2013

“Using monthly data for four selected emerging economies, sterilised central bank foreign exchange intervention is found to have little systematic influence on the near-term nominal exchange rate expectations in the direction intended by the central banks. In other words, central bank dollar purchases to stem exchange rate appreciation or related exchange rate volatility are not associated with an adjustment of the near-term exchange rate forecasts in the direction of depreciation, and vice versa. This suggests intervention may not change the nearterm exchange rate expectations. Moreover, intervention may have had unintended effects in the sense that it can lead to undesired volatility in the exchange rate, which is consistent with previous studies.”