日中韓の経済統合に与えるRCEPの影響及び効果にかかる検証 "RCEP對中日韓經濟整合之影響與效益評估（The Implications of the RCEP on the Economic Integration between China, Japan and Korea and Its Expected Benefits）"
日華航空交渉の開始遅延をめぐる一考察──航空企業の所有権‧支配権問題の影響 《中日空運臨時協定》延議協商之背景──航空公司的「實質所有與實效控制」原則之影響（Background Factors of the Preliminary Negotiation Between Japan and the Republic of China Regarding the Air Service: Focusing on Ownership and the Control of Airlines）
