May 01, 2011 (LBO) - Profit margins of Sri Lanka's tourist hotels are widening with an influx of arrivals and rising room rates after the end of its 30-year ethnic war, a report said.Given the rather "anaemic" demand prior to 2009, when the war ended, most hotel operators had been compelled to compete on price, RAM Ratings (Lanka) said in a report on the island's hotel sector. "Price undercutting had been evident among most city hotels and those in the southern region, with certain 05-star establishment only charging about 60 US dollars per night." However, the government started imposing minimum room rates in 2009 to curb excessive price competition, and a third increase recently implemented raised minimum rates to 125 dollars from April....