TY - JOUR AB - Suggests that the use of the geometric mean as a measure of average return on investment presents problems for estimating the variance as a measure of risk. Notes that the use of a measure based on the arithmetic mean seems an uncomfortable compromise. Shows that measures based on the geometric mean are also systematically biased in the case of log normal returns. Concludes that this can have major consequences for investment decision‐making and portfolio selection. VL - 10 IS - 2 SN - 0960-2712 DO - 10.1108/14635789210031190 UR - https://doi.org/10.1108/14635789210031190 AU - Lizieri Colin AU - Satchell Stephen PY - 1992 Y1 - 1992/01/01 TI - The Variance of Property Returns: Some Problems of Time‐Weighted Measures T2 - Journal of Property Valuation and Investment PB - MCB UP Ltd SP - 541 EP - 547 Y2 - 2024/04/20 ER -