IP-WHOA: Salvatore Ferragamo chief executive officer Michele Norsa underlined the general lack of confidence in the economic environment Tuesday, suggesting the luxury house would only proceed with its initial public offering when conditions improved. “It will depend on the performance of the markets,” Norsa said on the sidelines the Ferragamo show. Meanwhile, Taiwanese model Chi Ling Lin joined Italian ballet star Roberto Bolle and actresses Vittoria Puccini and Valeria Solarino in the front row. “Ferragamo invited me to Italy to design a one-off pair of shoes,” said Lin, who will make her big screen debut next year in John Woo’s “Red Cliff.” “We did a tour of Tuscany but we’re returning to Asia tomorrow. I can’t wait to come back to Europe,” she said, noting her pumps will feature snakeskin, rhinestones and layers of satin.