Firm-level trade theory and empirical analysis 并列题名:Firm-level trade theory and empirical analysis 国际短期资本流动监管:理论与实证:theory and empirical analysis Option investment frontier theories and empirical analysis theoretical and empirical analysis 创新驱动发展与产业结构升级:理论与实证:Theory and empirical analysis 并列题名:Option investment frontier theories and empirical analysis theoretical mechanism and empirical analysis 石油价格风险管理:方法与实证:methodology and empirical analysis 中国企业资本结构:理论与实证分析:theoretical and empirical analysis