Part A. Pacta sunt servanda in changing times 1 Pacta sunt servanda , the common law, and Hong Kong Stephen Hall 2 Exceptions to pacta sunt servanda in the Chinese Civil Code Siyi Lin 3 In a Bubble by the Sea: COVID-19, Time and Contract Law in the Macau S.A.R. Célia F. Matias and Monica Chan 4 Contracts in the time of COVID-19: common law and statutory solutions in Singapore Wayne Courtney 5 The principle of pacta sunt servanda and its exceptions under Japanese contract law Tomohiro Yoshimasa 6 Change of circumstances in Korean contract law: An exception to pacta sunt servanda Boeun Chang Part B. Pacta sunt servanda in specific contexts 7 The property management service contract with Chinese characteristics: An exception to pacta sunt servanda ? Jianbo Lou and Yimeng Ye 8 Pacta sunt servanda in the age of cryptocurrency: The case of China Chao Xi 9 Post-employment non-compete agreements under the Taiwan Labour Standards Act and pacta sunt servanda Yalun Yen 10 Pacta sunt servanda and the consumer's right of withdrawal Geraint Howells 11 Contract enforcement during the Global Financial Crisis: Lessons for the coming tsunami Kingsley Ong Part C. Pacta sunt servanda in international law 12 Invoking COVID-19 to suspend or terminate the operation of a treaty Hanh Hong Pham and Huong Thi Thu Phung 13 Treaties and pacta sunt servanda : A shared concept for the PRC? Noble Po-kan Lo 14 Pacta sunt servanda : Comfort letters in an age of instability and strategic rivalry Joel Slawotsky Part D.

Conclusion 15 Pacta sunt servanda - a maxim and its exceptions in comparative perspective Normann Witzleb.