Vornado Retail Trust will begin holding quarterly conference calls for investors, Chairman Steven Roth said in his annual letter to shareholders. More changes are coming as well. In an effort to boost its share prices, the REIT will consider a number of moves, including selling noncore retail assets. "We will ... reduce our exposure to the enclosed mall business," Roth wrote. "We certainly have the expertise to lease, manage and develop mall product, but with only a handful of malls we are in no-man's land."