The Best Longreads in Business and Finance for the week of February 24 Photos clockwise from top left: Paul Edmondson/Getty; Terry J Alcorn/Getty; Juanmonino/Getty Once a ubiquitous sight in every world tourist destination, Chinese tour groups have only been allowed in U.S. since 2007. More than 1 million Chinese tourists come every year. How many polo shirts can they buy? It runs 36 pages in print, but the insanely high prices doctors and hospitals charge for medical care deserves every outraged word. The housing sector is back, and has been for more than a year. Could it be strongest in, of all places, ground zero of the housing bust? Why are print and TV still the gold standard for the advertising industry? The answer can tell us why no one (besides Google and Facebook) has figured out how to make money selling ads on the internet. What I found, over four years of research and reporting, was a conscious effort - taking place in labs and marketing meetings and grocery-store aisles - to get people hooked on foods that are convenient and inexpensive. How big are American banks? How risky are they? The answers to these seemingly simple questions depend on a years-long accounting dispute between the U.S. and Europe that isn't much closer to being resolved