According to UBS, the global economy's party is well and truly over.<br />There's been a sharp slowdown in growth following several years of rapid expansion.<br />And the Swiss banking giant says things are about to get worse.<br />In short, global growth effectively halved in just one quarter.<br />The outlook is even worse if US economic strength is stripped out of the equation.<br />UBS cautions that these are all just estimates.<br />Still,. the general trajectory doesn't look good. <br />
