SUMMARYThe April edition of Perspectives featuresShale gas boom could benefit water companies - opportunities include water infrastructure, treatment and environmental consultancy Emerging market corporate debt: a bright spot - yields and company prospects among the attractions Covered bonds can offer stability when the going gets tough - the case for including covered bonds as a core allocation in fixed income portfolios Urbanisation: fuelling growth - how expanding cities are reshaping the capital needs and appeal of emerging economies for investment And more ... Perspectives - April 2013