The Nuveen Diversified Dividend and Income Fund (JDD) operates as a diversified, closed-end investment vehicle, primarily aiming for both high current income and robust total returns. Its investment approach involves allocating capital in roughly equal proportions across a diverse range of assets. These include dividend-paying common stocks from both U.S. and international markets, dividend-yielding shares issued by real estate investment trusts (REITs), sovereign debt instruments from emerging economies, and senior loans with adjustable interest rates. The fund's strategy typically places between 40% and 70% of its managed assets in equities and 30% to 60% in debt, with a long-term target allocation of approximately 50% equity and 50% debt. Nuveen Fund Advisors, LLC serves as the investment advisor, with additional specialized management provided by sub-advisors: NWQ Investment Management Company, LLC, Security Capital Research & Management Incorporated, Symphony Asset Management, LLC, and Wellington Management Company LLP.