Weaker Canadian dollar may trigger takeovers on TSX, hollowing out investor choice

By Fergal Smith TORONTO (Reuters) - Corporate Canada is on sale for foreign buyers after the Canadian dollar plunged, potentially triggering takeovers that hollow out investor choice in an already concentrated stock market, portfolio managers warned. A narrower pool of investment choices would reduce the opportunity to diversify, exposing Canadian investors to greater risk amid a highly volatile period for stock markets. U.S. home improvement retailer Lowe's Cos Inc agreed this month to buy Cana