China isn't the real worry, US economy is, says StanChart

China isn't the actual reason behind the tumbling global markets, says Sarah Hewin, Senior Economist at Standard Chartered, adding, the real worry seems to lay with the US economy.In an interview to CNBC-TV18, Hewin says there are signs of maturing business cycle, falling energy production, fading support for consumer sector and rising payrolls in the US economy. To add to the pain, there is no pick up in corporate earnings, she says. Federal Reserve's next move would be a rate cut going forward, she adds. On Chinese concerns, she says volatility in the global markets is an 'overreaction'. While most analysts have a pessimistic view on China's trade and lending data announcements next week, Hewin believes its services and consumer sector are still strong.Watch video for more.