CHICAGO: US first lady Michelle Obama's favourite city-based designer Maria Pinto is going out of business as sales have waned in a bad economy. Pinto, whose clientele also includes talk show host Oprah Winfrey, is closing her store Lola Black LLC. In a five-day sale starting here next week, her collection of daywear, eveningwear and accessories would be liquidated at 50-70 per cent off. Her designs were carried by major stores like Bergdorf Goodman, Saks Fifth Avenue, Barneys and Takashimaya in New York, as well as high-end boutiques across the country, reported Chicago Tribune. But the designer hit a rough...