If investors in New York and London are seeing the first delicate signs of a recovery, their counterparts in developing countries say they are witnessing a full-on spring. Enlarge This Image Timothy O'Rourke for The New York Times Brothers Wu Guo Fei, left, and Wu Guo Cai run a sidewalk tailor shop in Dongguan, China. Their revenue shrank last year as customers lost their jobs. Now, most have returned to work. After a crushing fall in the last year and a half, stock markets in developing countries... read more