The unpredictability in the foreign exchange market is due to uncertainties at home and abroad, Central Bank Governor Zhou Xiaochuan said, adding that fluctuations will be normal.
"There is an urgent need for global cooperation in view of the continued slowdown of global trade and investment, as well as the trend of anti-globalisation and protectionism," Governor of the People's Bank of China Zhou Xiaochuan said in his address to the International Monetary Financial Committee.
Finance Minister Lou Jiwei said that central government spending will rise 10 percent this year, more than the 7 percent growth budgeted at the start of the year, according to a statement late Saturday on the People's Bank of China website. China will raise dividend payments from designated state-owned enterprises to make up for any shortfalls.
Sharp drops in the country's equities after a debt-fuelled rise earlier in the year have spooked domestic and international investors and forced Beijing to launch a raft of policies aimed at stemming further losses. Chinese stock markets are down nearly 40 percent from their June peak.
China will raise dividend payments from designated state-owned enterprises to make up for any shortfalls.
The European Central Bank's 1 trillion euro quantitative easing programme, launched this month, has prompted investors to pile into shares on bets that a weak euro, low borrowing costs and cheap oil will help company profits surge.
In Europe, a rally in technology shares, tracking Friday's surge in the US tech sector, helped equities bounce back from losses last week, although Athens' stock market was down on concern about whether the country will be able to reach agreement with its creditors.
China has pledged to move towards making the yuan convertible on the capital account, amid hopes that the International Monetary Fund could include the yuan in its special drawing rights (SDR) basket during a five-year review due to be conducted this year.
The flash HSBC/Markit Purchasing Managers' Index (PMI) dipped to 49.2 in March, below the 50-point level that separates growth in activity from a contraction on a monthly basis.
China can avoid an abrupt slowdown as long as the government ensures an orderly unwinding of economic imbalances, the Organisation for Economic Co-operation and Development said in its latest survey on the world's second-largest economy.
Comments by China's two top banking officials playing down the risks of bad debt in the banking system provided the latest upbeat signal from Beijing suggesting seven straight quarters of slowing growth have ended.
China will continue to invest in eurozone government debt, Chinese central bank governor Zhou Xiaochuan said on Wednesday, expressing his confidence in both the euro and in the ability of eurozone members to solve their debt problems.
China will soon allow foreign investors to use the yuan to buy up to 20 billion yuan (USD 3.1 billion) worth of mainland securities, Chinese Vice-Premier Li Keqiang said on Wednesday, one of a string of moves aimed at boosting the currency's international role.
French Finance Minister Christine Lagarde, a leading candidate to head the International Monetary Fund (IMF), said on Thursday that she was "very satisfied" with her meetings with top Chinese officials, and proposed increasing China's voting share in the fund.
China's monetary policy tightening will continue for some time as inflation remains higher than the government is comfortable with, and the yuan will be one of the tools used to fight it, the central bank governor said.
China's central bank chief Zhou Xiaochuan said the Chinese economy likely grew around 10% in 2010.