摘要
以上市公司办公所在地是否经历高铁开通为外生冲击,使用A股公司2003~2017年的业绩预告数据为基础,采用双重差分法检验了高铁开通对业绩预告准确性的影响。结果表明,相比于高铁开通前以及未开通高铁的样本,高铁开通后样本的业绩预告准确性显著提高。而且,高铁开通对业绩预告准确性的影响在监管的地理临近性比较低的样本中更加明显。进一步的分析显示,高铁开通对业绩预告准确性的影响在只开通非城际高铁的样本中更加显著;信息精确度在高铁开通与业绩预告准确性的关系中发挥了部分中介效应。最后,从信息披露质量的视角提供了交通基础设施与资本市场关系的直接证据,丰富了有关治理环境和地理临近性的研究。
Based on management earnings forecasts issued by A-share companies during 2003-2017,we examined the association between the entry of high-speed railway( HSR) and the accuracy of management earnings forecast by applying the difference-indifferences( DID) approach with the entry of HSR as an exogenous shock. The results indicate that,compared to observations before the initial operation of HSR and those without HSR,the accuracy of management earnings forecasts issued after the entry of HSR are higher. What' s more,the relationship between the entry of HSR and the accuracy of management earnings forecast are most pronounced for firms with lower geographic proximity of regulations. Further analysis shows that the relationship is only significant for firms located at cities with the entry of national HSR. Path analysis shows that information precision partly moderate the relationship. We provide direct evidence on the association between constructions of transport infrastructure and capital market from the perspective of information disclosure,and contribute to the literature on governance environment and geographic proximity.
引文
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(1)赵静等(2018)通过股价崩盘风险间接检验了地理临近性对信息披露质量的影响。
(1)数据来自交通运输部2018年3月30日发布的《2017交通运输行业发展统计公报》。