Robin S. Murchison was hired as senior equity research analyst at Jefferies & Co. Inc., New York. She replaces Elliet Lawrence, who moved to another business group within Jefferies, a spokeswoman said. Ms. Murchison will be responsible for covering established and emerging specialty/apparel retail companies. Previously, Ms. Murchison was senior vice president and senior analyst at Hibernia Southcoast Capital Inc., New Orleans, where she covered consumer/retail groups. Murrey Wanstrath, who worked with her at Hibernia Southcoast, said he has taken over her duties.