Have you been paying attention to shares of Republic Services (RSG) ? Shares have been on the move with the stock up 5.1% over the past month. The stock hit a new 52-week high of $197.07 in the previous session. Republic Services has gained 19.4% since the start of the year compared to the 6.5% move for the Zacks Business Services sector and the 17.5% return for the Zacks Waste Removal Services industry.What's Driving the Outperformance?The stock has an impressive record of positive earnings surprises, as i ...