TY JOUR TI Organizational, Economic and Managerial Solutions for the Development of Retail Services of Retail Chains Based on the Implementation of a Customer Loyalty Management System KW retail chains KW customer loyalty system KW customer focus KW management KW information system KW CRM system KW management decision KW efficiency improvement KW implementation JO Scientific Research and Development. Economics of the Firm AU Yakhontova, I.M. AU Nilova, N.M. PY 2023 IS 12 PB INFRA-M Academic Publishing LLC.