Chicago Fed index drops in January Malta Independent Monday, 25 February 2013, 14:58 Last update: about 14 years ago <a href='https://ads.independent.com.mt/www/delivery/ck.php?n=afef72b0&cb=50' target='_blank'><img data-src='https://ads.independent.com.mt/www/delivery/avw.php?zoneid=22&cb=50&n=afef72b0' border='0' alt='' /></a> Economic activity in the United States fell in January, the Federal Reserve Bank of Chicago said on Monday