Bloomberg -- Sovereign wealth funds, which control about $6 trillion of wealth globally, are boosting investments in alternative assets like real estate and private equity to boost returns, a survey by Invesco Ltd. found.

The wide swings in equity prices and the “market-wide dissatisfaction with risk-return profile of equity investing,” together with low interest rates on fixed-income products, has pushed government-controlled funds to consider alternative assets to enhance growth, Invesco said in a report released in Dubai today. Alternative investments include international and local private equity, real-estate, hedge funds, infrastructure and commodities, according to the report.

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