Russia would keep some controls on investment flows, to guard against threats from currency speculation but will not significantly change its currency policy next year, the country's central bank chairman said. 'I am sure that the exchange rate policy and the evaluation of the exchange rate of roubles will be continued just in the same manner as this year, maybe with some technical changes in our crawling peg approach,' Sergei Dubinin said. The central bank has a moving target zone for the rouble, which floats within a published corridor. Mr Dubinin also said he told International Monetary Fund delegates that developing countries were wise to liberalise capital accounts controlling investment flows, although in an orderly and consistent manner. 'For countries with stable economic structures, a currency speculation attack is nothing terrible. For countries with other economic structures, it can be painful,' he said.