Carrefour needs to fund ways of selling part of its property portfolio without disturbing the French retailer's core business, its ceo Jose Luis Duran said on Thursday during a retail conference in Barcelona. 'If we can create shareholder value, yes. The question is how to create it without hurting the core business?' Duran told news agency Reuters at the sidelines of the World Retail Conference. 'How can we do it, without putting in danger the operating side of the business?'