<p>The Canada Pension Plan Investment Board, one of the world's biggest investors, is concerned about the rise of protectionist trade policies, its chief executive told business leaders in Toronto on Friday.</p>
<p>The CPPIB, which manages Canada's national pension fund and invests on behalf of 20 million Canadians, has become one of the world's biggest global infrastructure and real estate investors as it seeks to diversify from public equity and fixed income markets.</p>
<p>Chief Executive Mark Machin told the Toronto Region Board of Trade that the pension fund had benefited from globalisation and would suffer from policies that make international trade more difficult.</p>