Aggregate Bond Enhanced Yield Fund (NYSEArca: AGGY), which can generate higher levels of income than traditional aggregate bond strategies. The Siegel-WisdomTree Longevity Model Portfolio is appropriate for advisors serving clients that need to trim some equity exposure, those need some additional income, and those looking for some protection from inflation. That task is getting trickier in today's low-yield environment, but the Siegel-WisdomTree Longevity Model Portfolio augments some of that risk.