Ex ante and Ex post Subcontracting between Two Competing Bidders. - Sijing Deng; Jiayan Xu (Asia Pac. J. Oper. Res., 2020)

The coopetition effect of learning-by-doing in outsourcing. - Sijing Deng; Xu Guan; Jiayan Xu (Int. J. Prod. Res., 2021)

Manufacturing and procurement outsourcing strategies of competing original equipment manufacturers. - Sijing Deng; Jiayan Xu (Eur. J. Oper. Res., 2023)

A multinational firm's global manufacturing location and outsourcing strategies. - Jiayan Xu; Chuling Yu; Sijing Deng; Penglin Zhang; Yu Tian (Comput. Ind. Eng., 2024)

Managing social responsibility efforts with the consideration of violation probability. - Jiayan Xu; Housheng Duan; Sijing Deng (Eur. J. Oper. Res., 2025)