<p>Record low yields and negative interest rates are pushing investors from Japan to China into funding infrastructure projects across the globe to bolster ailing income, according to Australia&#39;s biggest listed wealth manager AMP.</p> <p>Asian pension funds and insurers are ramping up investments in infrastructure debt around the world, as they seek to combat waning returns from traditional fixed income assets, said Ms Kerry Ching, managing director for Asia of the firm&#39;s investment arm, AMP Capital Investors.</p> <p>The number of Asian investors in AMP&#39;s infrastructure debt strategies has more than tripled since 2012.</p>