RT Journal Article SR Electronic T1 Index Arbitrage Profitability JF The Journal of Derivatives FD Institutional Investor Journals SP 6 OP 20 DO 10.3905/jod.1993.407871 VO 1 IS 1 A1 George Sofianos YR 1993 UL https://pm-research.com/content/1/1/6.abstract AB