Given the abundance of studies that use trade activity as a direct (or proxy) measure for openness, this is an incredible collection that makes quantification of relevant and actual treaty information relatively straightforward (assuming one already knows what they are coding). While PTAs are only a portion of all that is trade liberalization, a compilation of such knowledge is incredibly useful.
Michael is an Assistant Professor in Political Science at Boise State University with a focus in International Relations, Comparative Politics, and Methodology (quantitative and formal). His work includes issues related to military basing abroad, asymmetric relations, cooperation, and conflict. He received his Ph.D from Binghamton University in 2011.