With a relatively unstable dividend, it's even more important to evaluate if earnings per share is growing, which could point to a growing dividend in the future. ManpowerGroup's earnings per share has shrunk at 19% a year over the past five years. Such rapid declines definitely have the potential to constrain dividend payments if the trend continues into the future. It's not all bad news though, as the earnings are predicted to rise over the next 12 months - we would just be a bit cautious until this becomes a long term trend.