上市公司违规信息披露处罚效果的研究

上市公司违规信息披露是公司不规范治理下违规成本-收益的预期结果，中国证监会、沪深交易所对违规信皮披露处罚并未威摄和阻止违规行为的收敛，笔者提出违规信息披露实际效果的问题，并利用SUR模型事件分析方法和统计资料对此进行实证分析。研究表明处罚没有足够威摄力，市场对处罚反应与处罚公开性和力度正相关，处罚总体上未增加违规信息披露成本，笔者对为提高中国证券市场效率和信息披露监管有效提供了基于实证研究的建议。

Research on Penalty Effect of Listed firm'' Information Disclosure Violation

The listed firm' information disclosure violation is the expectation result of violation cost-benefit under improper Corp governance. The information disclosure violation penalty imposed by CSRC and Stock Exchange doesn't prevent the violation behavior. The author puts forward Penalty effect issue of information disclosure violation and applies SUR event study method to statistical data. The empirical study yields several findings: 1) the penalty doesn't have enough intensity; 2) market response correlates to disciplinary action with publicity and severity; 3) penalty as a whole doesn't increase the violation cost. At last the paper presents some propositions based on the empirical analysis.