Here is a 12 minute video on youtube of an interview from Davos, Switzerland, with Robert Shiller from Yale University.
He says in the video that taxes should be raised on the rich if inequality gets worse. He seems content with the current level of inequality.
He says that economics is not an exact science. We cannot know the future with certainty.
All in all, he seems pretty relaxed about the future of the economy.
Source
BollyWoodEvent. Economics is not exact science Robert J Shiller. youtube.com. 7/24/2013. Retrieved from https://www.youtube.com/watch?v=ezxZzj0IfLU