知识创新的空间格局：基于美国大学的实证研究：empirical study based on the American universities empirical study based on the American universities 农地城市流转的社会福利效应：基于公平与效率理论的实证研究：empirical study based on the equity and efficiency theory 中国文化产业集群治理：基于典型案例的实证研究：an empirical study based on typical cases 风险的社会动力机制：基于中国经验的实证研究：an empirical study based on Chinese experience 中国广告产业集群创新的影响机制：基于多维邻近理论的实证研究：an empirical study based on multi-dimensional proximity theory 社区权力与基层治理：基于北京市L街道的实证研究：an empirical study based on L street in Beijing 连锁董事的战略与绩效影响：基于中国A股上市公司的实证研究：an empirical study based on a-share listed companies in China