共 9 条
- [2] IBBOTSON RG, 1978, UNPUB CORPORATE BOND
- [5] Markowitz H., 1971, PORTFOLIO SELECTION
- [6] AMBIGUITY WHEN PERFORMANCE IS MEASURED BY SECURITIES MARKET LINE [J]. JOURNAL OF FINANCE, 1978, 33 (04) : 1051 - 1069
- [8] ROLL R, 1980, J PORTFOLIO MANAGE, V7, P5