Related to the previous point, fund managers are required by investors to allocate the funds invested ac-cording to set criteria. Just as no standard performance benchmark has emerged, no standard definition of infrastructure exists. As a result fund managers may struggle to justify the inclusion of a particular bond under any of their existing pools of funding. Frequently, bonds issued to fund the same project will find their way into commercial real estate, alternative investments, or public obligations portfolios. Investors may not agree with the fund managers' decisions as to the allocation of the asset and, in the current market, fund managers are reluctant to invest when they do not have clear home for the bond.