From AL.com Two economists studied federal corruption conviction rates in states before and after they legalized casino gambling between the years 1985 to 2000. Mississippi tops the list. According to The Pew Research Center, economists Douglas M. Walker and Peter T. Calcagno analyzed the average number of corruption convictions for every 10,000 state employees. The result was four out of the five states with the highest annual rates of public corruption were casino states. Per the report: Mississippi led the list with almost four public corruption convictions a year per 10,000 state employees followed by Louisiana, Illinois and South Dakota. At…