Story 2117: Corbis Predicts Slight Industry Decline By 2012 Published: 10/28/2009   According to Corbis chief executive officer Gary Shenk, total stock-photo revenue will decline only slightly by 2012. Corbis estimates the total 2007 market at $2.3 billion, predicting it will decline to $2.2 billion by 2012. However, this is no reason to be sanguine, as the same total will be divided differently among various industry segments. In addition, this analysis was completed during the summer, prior to the more recent economic disruption.