Interpublic Group (IPG) came out with quarterly earnings of $0.61 per share, in line with the Zacks Consensus Estimate. This compares to earnings of $0.74 per share a year ago. These figures are adjusted for non-recurring items.A quarter ago, it was expected that this marketing and advertising company would post earnings of $0.36 per share when it actually produced earnings of $0.36, delivering no surprise.Over the last four quarters, the company has surpassed consensus EPS estimates just once.Interpublic, ...