◎專書及專書論文：
Hong Hwang(correspondence), Chao-Cheng Mai and Ya-Po Yang Capacity Constraint, Export Subsidies and World Recession Positive and Normative Analysis in International Economics: Essays in honour of Hiroshi ohta
Editor: Murray C. Kemp, Hironobu Nakagawa, and Tatsuya Uchida
Publisher:Palgrave Macmillan, 2011,11.
Hong Hwang and Chao-Cheng Mai and Ya-Po Yang, (2008), “Capacity Constraint, Export Subsidies and World Recession” in M. Kemp, Hakagawa and T. Uchida, ed. Positive and Normative Analysis in International Economics： Essays in Honour of Hiroshi Ohta (Palgrave Macmillan, Hampshire England) .
◎Working paper：
Ya-Po Yang and Shih-Jye Wu and Jin-Li Hu, (2009),“Upstream Mixed Oligopoly and Privatization” Submitted to International Journal of Environmental Technology and Management.
Ya-Po Yang and Jin-Li Hu, (2008), “The Gresham’s Law in Environmental Protection,” Submitted to Journal of Economic Modeling .
Hong Hwang and Chao-Cheng Mai and Ya-Po Yang, (2008), “Capacity Constraint and Optimal Export Subsidy Policy under Cournot Competition”。