More rollercoaster trading in Shanghai to start the week, which plunged on opening and then clawed back most of the losses.<br /><br /> The Chinese stockmarket has dropped nearly 40% since June in what most traders are saying is a correction after breakneck growth in the previous nine months. In August the market shed 12% of its value.<br /><br /> However the government is blaming speculators and is cracking down on them. Papers on Monday were filled with confessions from businessmen and at least one journalist admitting to illegal practices.<br /><br /> Real worries about China’s economy remain, however, and the latest figures due this week on factory production and the service sector will be keenly watched.