关键词：policy of repealing county system and setting up city system; administrative division adjustment; economic growth; DID, 撤县设市 行政区划调整 经济增长 双重差分法

关键词：Innovation,Platform Scale,User Switching Cost,Degree of Farsightedness,Difficulty of Innovation Imitation, 创新,平台规模,用户转换成本,企业远视程度,创新模仿难度

关键词：population polycentricity,air pollution,work-housing balance,inverted U-shaped relationship,moderating effect, 人口多中心化,空气污染,职住平衡,倒U型关系,调节效应

关键词：low carbon development efficiency,technological progress path,frontier technology gap, 低碳发展效率,技术进步路径,前沿技术差距

关键词：Macroprudential regulations, Real estate developer;,Debt risk;,Housing price, 审慎监管,房地产企业,债务风险,房价

关键词：Export Shocks,Consumption Inequality,Income Uncertainty,Common Wealth, 出口冲击, 消费不平等, 收入不确定性, 共同富裕

关键词：Bank FinTech,Interbank business,Constraint mechanism, 银行金融科技,同业业务,约束机制

关键词：Banking Fintech,Lending Distance, Banking Competition,Credit Diversification, 银行金融科技,借贷距离,银行业竞争,信贷多元化

关键词：FinTech,price-based monetary policy,quantitative monetary policy,commercial banks’ liquidity creation, 金融科技,价格型货币政策,数量型货币政策,商业银行流动性创造

关键词：Internal pay gap,Stock return,Inequality aversion,Market performance, 内部薪酬差距,股票收益,不平等厌恶,市场表现