Financial openness and profitability premium: Causal evidence from the Shanghai-Hong Kong Stock Connect

This study explores the impact of capital market openness on the profitability premium by using the Shanghai-Hong Kong Stock Connect (SHKSC) programme as an exogenous shock. The empirical results show that (1) we can basically rule out the mispricing mechanism driving the significant profitability premium in China; (2) following SHKSC, the expected stock returns increase more across less profitable firms, and the less profitable firms have more increases in illiquidity, capital structure and information disclosure quality; and (3) the results are still robust after using propensity score matching analysis, deleting the highly volatile periods and conducting a firm-level test with the triple-differencing design.     

资本市场开放与企业避税

以“沪港通”开通为研究背景，基于 2008-2018 年 A 股上市公司为研究样本，采用双重差分模型，探讨了资本市场对外开放对企业避税行为的影响作用。研究结果发现，“沪港通”开通有助于降低企业激进的避税程度，该结论在采用 PSM、更换样本区间以及改变变量测量方法等检验后依然稳健。进一步研究发现，“沪港通”开通对企业避税的降低作用在代理成本较高、公司治理水平较低以及融资约束程度较大的样本组中更为明显。本文的研究表明资本市场开放对上市企业避税决策具有重要作用，一定程度上丰富了资本市场对外开放经济后果的研究，也从企业避税这一角度提供了“沪港通”机制发挥公司治理效应的证据，为后续资本市场对外开放政策继续深入提供了理论指导和经验借鉴。     

资本市场开放对股票定价效率的影响——基于沪港通政策的实证分析

以沪港通政策实施为现实背景，选定2012年11月至2016年11月为研究区间，构造股价信息充分性、股价信息准确性和股价对信息的反应速度三项定价效率核心指标，采用双重差分模型实证检验沪港通政策对我国沪市A股定价效率的影响。研究发现，沪港通政策的推出有助于提高我国沪市A股的股价信息充分性、准确性和股价对信息的反应速度，且对国有企业、高股权制衡度企业、高换手率企业的股票定价效率提高更显著。进一步对比发现,资金双向流动交易机制对沪市A股定价效率的影响具有差异性。因此，应有序扩大沪股通、港股通标的股票范围，不断完善资金双向流动机制，提高股票流动性，加速境内外资本市场接轨。     

论房屋拆迁中土地使用权的收回模式——香港的启示

研究目的：解决中国房屋拆迁中，由于土地使用权收回程序的缺失以及制度路径的不明确给房屋拆迁带来的困境与弊端。研究方法：比较分析法和实证分析法。研究结果：（1）中国的房屋拆迁中缺失“国有土地使用权收回”的法律程序，造成房屋拆迁的合宪性危机；（2）中国香港地区通过“土地收回”与“强制售卖”的分类机制，在土地征收领域实现了良好的社会效果；（3）大陆地区对于因危房改建、旧城改造而引起的房地产开发应适用不同于公益事业的准司法机制。研究结论：建立“公益收回”与“有条件强制收回”的城市土地使用权双轨制收回制度是解决房屋拆迁各项矛盾的基础。     

资本市场开放下企业创新策略选择

本文以2010—2019年的沪深A股上市公司作为样本，应用双重差分模型实证研究了资本市场开放对企业创新行为的影响及作用机制。研究发现：沪港通的开通提高了标的企业实质性创新投入，但是也助长了策略性创新行为。路径分析表明，沪港通主要通过影响企业内源融资与改善外部信息环境，缓解融资约束与信息不对称性，促进企业实质性创新。为实现高质量经济发展，需要进一步完善资本市场开放制度、提高政策甄别能力与扶持企业创新。     

基于甩挂运输的港珠澳大桥利用率提升研究

针对港珠澳大桥利用率不足的问题,提出了在珠海建立物流基地并通过甩挂运输提升港珠澳大桥货车流量的解决思路。首先介绍了大桥连接区域的产业及交通环境,而后分析了港珠澳大桥当前的利用情况,最后设计了甩挂运输的具体方案。研究表明:甩挂运输能够节约香港和珠江西岸之间的公路货运费用,提高港珠澳大桥的利用率。     

Study on Coupling Coordination between Sci-Tech Innovation and High-Quality Economic Development in the Guangdong-Hong Kong-Macao Greater Bay Area

Sci-tech innovation is an important measure for the Guangdong–Hong Kong–Macao Greater Bay Area to achieve high-quality economic development. Theoretically, there is a coupling coordination relationship between sci-tech innovation and high-quality economic development, and coordinating the relationship between the two is beneficial to building the Guangdong–Hong Kong–Macao Greater Bay Area into an international innovation and technology hub and promoting high-quality economic development. At present, the Guangdong–Hong Kong–Macao Greater Bay Area has seen a year-on-year increase in both the level of sci-tech innovation and the level of high-quality economic development, with a sound development trend. Its coupling coordination degree between sci-tech innovation and high-quality economic development has steadily improved from a slightly uncoordinated stage to a primarily coordinated stage, but the overall degree of coordination is still not high, with some gaps from realizing the excellently coordinated stage. From the perspective of spatial distribution, the internal development of the Guangdong–Hong Kong–Macao Greater Bay Area is unbalanced, with obvious differences in development level and coupling coordination degree among cities. The convergence analysis shows that the differences in the coupling coordination degree among the cities in the Guangdong–Hong Kong–Macao Greater Bay Area have stabilized after narrowing during the study period. However, the difference among the cities with higher coupling coordination degrees tends to widen in recent years. Therefore, necessary measures should be taken to promote the coordination between sci-tech innovation and high-quality economic development in the Guangdong–Hong Kong–Macao Greater Bay Area.     

One country,two currencies: The adoption of the Hong Kong currency board, 1983

Currency boards have had an enduring attraction as a solution to exchange rate and monetary credibility for small open economies, despite few successful examples. In this context, the case of Hong Kong stands out for its longevity; it survived the handover to China, the Asian financial crises in 1997, and the global crises in 2007–8 and 2020. The 1983 currency crisis and the decision to link the exchange rate to the US$ is usually treated as an outcome of local political uncertainty due to the Sino-British negotiations which set the framework for how Hong Kong would fit with the rest of China after 1997. We present fresh archival evidence from Hong Kong and London to reveal the year-long debates over Hong Kong's monetary system after a drop in the exchange rate in September 1982 and to demonstrate how most of the protagonists in Hong Kong and London came only reluctantly to accept the idea of re-pegging the dollar once public expectations had been raised. We also show how the mixture of currency and banking instability affected the terms of the negotiations in 1982 and 1983 and set the framework for the one country, two currencies system that prevails today.