1. Balistreri Edward J. Chad E.Hart Dermot J.Hayes MinghaoLi Lee L.Schulz David A.Swenson WendongZhang andJohn M.Crespi.2020a.The Impact of the 2018 Trade Disruptions on the Iowa Economy. CARD Policy Briefs 18‐PB 25.https://www.card.iastate.edu/products/publications/synopsis/?p=1281.
2. Balistreri Edward J. WendongZhang andJohnBeghin.2020b.The State‐Level Burden of the Trade War: Interactions between the Market Facilitation Program and Tariffs. Presented at the WiNDC Online Meeting.
3. Beghin John Christopher.2017.Nontariff Measures and International Trade (World Scientific Studies in International Economics Vol. 56). London: World Scientific Publishing Company. doi:https://doi.org/10.1142/10150.
4. How Coupled Are Decoupled Farm Payments? A Review of the Evidence;Bhaskar Arathi;Journal of Agricultural and Resource Economics,2009
5. Blenkinsop Philip. EU China and 14 Others Agree Stop‐gap Fix for WTO Crisis.Reuters Business News March 27 2020 https://www.reuters.com/article/us‐trade‐wto/eu‐china‐and‐14‐others‐agree‐stop‐gap‐fix‐for‐wto‐crisis\‐idUSKBN21E2I0(accessed July 1 2020).