Dearborn Heights (Mich.) Police & Fire Pension Plan might invest in international fixed income and emerging markets equities, pending the results of an asset allocation study, said John Riley, city treasurer and plan trustee. The $118 million plan would add the new asset classes for diversification, Mr. Riley said. Study results are expected by early July, when trustees would determine the size and funding source of any new portfolios, he said. The plan's current asset allocation is 56% domestic equity, 32% fixed income, 6% international equity, 5% real estate and 1% cash. UBS Financial is assisting.