The investment seeks a long-term total return in excess of inflation. Under normal circumstances, the fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in securities of real asset companies worldwide. The fund allocates its assets among the following types of real asset companies: real estate companies; natural resources companies; infrastructure companies; master limited partnerships that are engaged in the transportation, storage, processing, refining, marketing, production, or mining of natural resources in the energy sector (up to a maximum of 25% of the fund's net assets); and agriculture and timber companies.