That what's most relevant to you is whether and how you're doing something different from what everybody else is doing. Roger G. Ibbotson More Quotes by Roger G. Ibbotson More Quotes From Roger G. Ibbotson On average, 90 percent of the variability of returns and 100 percent of the absolute level of return is explained by asset allocation. Roger G. Ibbotson investing levels average We can extrapolate from the study that for the long term individual investor who maintains a consistent asset allocation and leans toward index funds, asset allocation determines about 100% of performance. Roger G. Ibbotson investing study long
