RT Journal Article SR Electronic T1 The growing efficiency of index futures markets JF The Journal of Portfolio Management FD Institutional Investor Journals SP 52 OP 56 DO 10.3905/jpm.1985.409021 VO 11 IS 4 A1 Peters, Ed YR 1985 UL http://jpm.pm-research.com/content/11/4/52.abstract AB