The TPP is a deep international integration arrangement between the US and 11 other Pacific states, which would cover 40% of world GDP and over 30% of world trade. It seeks to address as series of issues that 21st century commerce, but arguably its most obvious feature is that it excludes China – the world’s largest international trader and before long the world’s largest economy. There are, of course, the ritual genuflections towards ‘open regionalism’ – China can join if only it will agree to the necessary policy requirements – but this is about as much use as saying the Chief Rabbi can dine with you while insisting that the menu contains pork.