NBC Chicago’s politics blog “The Ward Room” recently posted an opinion piece affirming Mayor Rahm Emanuel’s decision to refuse to provide public money for a $500 million renovation of Wrigley Field. The writer, Edward McClelland, cited research by UMBC economics professor Dennis Coates that found pro sports reduce a city’s per capita income by putting entertainment dollars into the hands of athletes and team owners who live outside the area rather than local businesses around the stadium. Coates wrote, “money paid to players does not circulate as widely or abundantly as it would were it paid to people with less …