cost Chinese goods. But it also makes foreign assets cheaper for Chinese buyers, possibly prompting more takeover bids by China like those launched recently for U.S. oil company Unocal Corp. and appliance maker Maytag Corp. Chinese stocks, mired in a prolonged slump, were up sharply Friday on expectations the yuan's rise will make Chinese assets more attractive to investors. Airlines stocks were among the biggest gainers, while textile makers fell. Airlines will benefit from lower oil prices while textile exports will become more expensive. The revaluation had immediate effects on stocks and currencies around the world, reflecting China's huge influence on world trade. Although China had been under pressure for years to allow the yuan to rise, there was no clear indication of a reason behind the timing of the move. China had long insisted that such a decision would be based solely on its own domestic economic concerns. However, there had been intense speculation that China would adjust its currency policy ahead of a planned September visit by President Hu Jintao to the United States, which has been pressing China hard for a revaluation. American and other foreign businesses say the yuan is undervalued by up to 40 percent. --mor 1128 Local Time 0828 GMT