Return–volume nexus in financial markets: A survey of research

This paper provides a systematic review of the return–volume literature, broadly defined to include theoretical and empirical research relating to the intramarket and cross-market interlinkages between security return and trading volume characteristics in four financial markets, namely, the stock, bond, foreign exchange, and futures markets. Viewed through this lens, this paper attempts to review previous empirical research within a unified theoretical framework that relates the interlinkages between return and volume characteristics in various financial markets. Overall, this paper marks several interesting areas of debate and controversy based on several controversial theories and empirical findings in the literature, suggesting directions for future research.     

政府推动的就近城镇化能够消除工资歧视吗

随着大中城市城镇化空间的逐渐饱和以及农民工回流现象的出现,就近城镇化成为推进我国新型城镇化进程的重要模式。文章基于2017年中国流动人口动态监测调查(CMDS)数据,研究政府推动的就近城镇化对农村劳动力工资收入的影响发现:政府通过征地、户口改革方式推动的就近城镇化并不能够消除工资歧视,实现就近城镇化的农村劳动力在其他条件相同的情况下其工资水平仍然低于城镇本地职工,这一结论在纠正自选择偏差和样本选择偏差后仍然成立。机制分析发现,城镇劳动力市场针对实现就近城镇化的农村劳动力在就业机会方面的歧视与隔离已不明显,同工不同酬成为实现就近城镇化者面临的主要歧视形式,而城乡劳动力之间教育回报率的差异是导致同工不同酬的主要原因。进一步讨论发现,就近城镇化对于农村劳动力参保城镇职工保险具有显著的提升作用,而自我雇佣的就业形式则有助于打破城镇劳动力市场对农村劳动力的收入歧视。文章拓展研究了就近城镇化对农村劳动力工资收入的影响,为政府进一步推进以县域城镇化为主要形式的就近城镇化提供了研究参考。未来应持续推进城乡基本公共服务均等化,进一步缩小城乡教育质量差异,加强农村劳动力"同工同酬"的保护力度,稳步推进农村劳动力的就近城镇化。