1. Policy Uncertainty, Persistence and Growth;Aizenman,1991
2. Business cycle synchronization during us recessions since the beginning of the 1870s;Antonakakis;Economics Letters,2012
3. Uncertainty and Economic Activity: Evidence from Business Survey Data;Bachmann,2010
4. Baker, Scott, Bloom, Nicholas, Davis, Steven, 2012. Measuring Economic Policy Uncertainty. In: Working Paper Series. Stanford University.
5. On the sensitivity of firms’ investment to cash flow and uncertainty;Baum;Oxford Economic Papers,2010