Hartzell, David J.; Webb, James R. - In: Journal of Real Estate Research 3 (1988) 3, pp. 31-37
Investment and portfolio studies generally use ex post risk and return data, although expected risk and return data is what should be used. This is probably due to the dearth of such data or the difficulty and/or cost of obtaining it on a current basis. This study reports the results of a survey...