TY - JOUR T1 - Bid-ask spreads, NYSE specialists, and NASD dealers JF - The Journal of Portfolio Management SP - 54 LP - 58 DO - 10.3905/jpm.1991.409381 VL - 18 IS - 1 AU - Steven V. Mann AU - Robert W. Seijas Y1 - 1991/10/31 UR - https://pm-research.com/content/18/1/54.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -