He says that insurance companies are among those interested in infrastructure debt as they gain exposure to high quality, floating-rate and credit-risk assets. This type of credit opportunity also offers a degree of inflation protection.

For investors such as insurance companies, infrastructure debt can also form part of an asset/liability-matching investment strategy.

Miller also sees a potential for infrastructure debt to form part of the need for income-generating products as an increasing number of baby boomers enter post-retirement and need to de-risk.