The consequences of managerial indiscretions: Sex,lies, and firm value

Personal managerial indiscretions are separate from a firm's business activities but provide information about the manager's integrity. Consequently, they could affect counterparties’ trust in the firm and the firm's value and operations. We find that companies of accused executives experience significant wealth deterioration, reduced operating margins, and lost business partners. Indiscretions are also associated with an increased probability of unrelated shareholder-initiated lawsuits, Department of Justice and Securities and Exchange Commission investigations, and managed earnings. Further, chief executive officers and boards face labor market consequences, including forced turnover, pay cuts, and lower shareholder votes at re-election. Indiscretions occur more often at poorly governed firms where disciplinary turnover is less likely.     

Superhedging under ratio constraint

We consider superhedging of contingent claims under ratio constraint. It has been widely recognized that the minimum cost of superhedging a contingent claim with certain portfolio constraints is equal to the price of a claim with appropriately modified payoff but without constraints. In terms of the backward stochastic differential equation (BSDE) and the variational inequality equation approach, we revisit this result and provide two counterexamples.     

研发模式对制造业企业创新绩效的影响

将企业研发模式分为自主研发、合作研发和双重研发三种，使用世界银行对中国制造业企业的调查数据，通过倾向得分匹配方法探究不同研发模式对企业创新绩效的作用效果及其在异质性企业中的差异情况。全样本研究结果表明：企业双重研发对创新绩效的激励效果最好，合作研发的激励效果次之，自主研发的激励效果最弱。企业异质性研究结果显示：自主研发对高成长性企业创新绩效的激励效果最显著，合作研发对低成长性企业和小微企业的激励效果最显著；对于无融资约束的企业，双重研发模式是提升创新绩效的最佳选择，但是对有融资约束的企业，其提升效果最弱。     

基于银行流动性管理视角的宏观审慎与货币政策协调研究

本文从商业银行流动性管理视角出发,探究银行微观主体行为如何影响宏观审慎与货币政策的协调。我们借鉴净稳定资金比例的设计理念,将商业银行的流动性管理行为纳入传统理论模型,刻画出两种流动性管理行为对货币政策信贷传导渠道效率的潜在影响及传导路径。在此基础上,采用我国50家商业银行2012年第1季度—2018年第2季度面板数据进行实证检验。我们发现,银行为提升长期流动性水平而进行的优化信贷资产结构的行为,能够显著提高货币政策传导效率。但是,部分净稳定资金比例较低的股份制银行和城市商业银行调整非信贷资产结构的行为则有可能降低货币政策传导效率。因此,在执行既有流动性监管措施的同时,关注与引导银行资产结构调整方式,对增强宏观审慎与货币政策的协调大有裨益。     

卖空限制与收益可预测性——A股融资融券制度的证据

基于A股市场融资和融券余额的巨大差距,本文拓展了Hong et al.(2016)的理论模型,在融券端和融资端分别找到了影响股票收益率的变量:融券比率(融券余额/流通市值)和融资回补天数(融资比率/日均换手率)。进一步,本文利用组合价差法和Fama-MacBeth横截面回归法,实证检验了A股市场中融券比率与融资回补天数解释和预测股票收益率的能力。实证结果表明,在存在融券限制条件下,融券比率相比融券回补天数(融券比率/日均换手率)能更好地代表套利者对股票价格高估程度的看法,根据融券比率构建的等权重多空组合能带来月均1.58%的显著收益;而由于融资约束相对较少,融资回补天数相比融资比率(融资余额/流通市值)能更好地代表套利者对股票价格低估程度的看法,根据融资回补天数构建的等权重多空组合能带来月均1.28%的显著收益。实证结果与本文存在融券数量限制下的理论模型相符,且该收益率不能被多因子模型和常规股票特征所解释。     

Guest satisfaction in independent and affiliated to chain hotels

In the hotel sector, two basic organisational forms can be distinguished, independent and chain-affiliated, which reflects in the entities' management processes and in the dimensions of the hotel service. Guest satisfaction is the determinant of and the secret to success in the hotel industry, nevertheless the comparison of customer satisfaction of both operational models is scarce. The main goal of this work is to determine whether those differences exist, considering the geographical scope and size of the chain in linked hotels. Customer satisfaction was analysed in 404 four and five-star hotels, measured through the hotel ratings from online travel agent Booking.com, in two tourism destinations in Spain using the Rasch Measurement Theory. Results obtained indicate that the superiority in customer satisfaction of one of these management forms shows for specific dimensions of the service provided.     

开放式基金在上升市场与下降市场中选时与选股能力的实证研究

选取我国10只开放式基金作为样本,根据它们的收益情况并联系市场背景,对它们基金管理人的选时与选股能力进行的实证研究表明,不同基金在市场上升和市场下降过程中所表现出来的选时能力指标和选股能力指标与整体指标并不相同.这一结论可用于基金整体性指标研究.     

Firm behaviour under pollution ratio standards with non-compliance

This paper compares a firm’s short run optimal production and abatement rules under emission level standards and standards expressed in terms of emissions per unit of output (ratio standards). The models allow for non-compliance with standards, with expected penalties dependant on either level or relative violations of the standard in question. It is shown that ratio arguments make a difference to the optimal decision rules derived for a profit-maximising firm. For example, for a given level of emissions the firm both produces more, and abates more, under a ratio standard, so that ratio and level standards cannot be used interchangeably to achieve the same combination of emissions and output. The implications for the efficiency of pollution control are briefly discussed.

技术锁定对创新绩效的影响：创新模式的调节作用

创新是引领发展的第一动力,当前我国经济发展已从创新数量转移到创新质量上来。聚焦技术创新过程中形成的技术锁定效应,运用DEA-SBM测度技术锁定效应并分析其发展趋势,检验技术锁定效应对创新绩效的影响,并寻找解锁技术锁定负效应的调节机制。研究发现：技术锁定效应显著抑制创新绩效提升,在经过一系列稳健性检验后结论依然成立。技术创新模式中的技术引进和自主创新对技术锁定负效应具有显著正向调节作用,且自主创新投入可以深度缓解技术锁定对创新绩效的消极影响;消化吸收能力在技术引进与自主创新之间发挥创新路径枢纽作用,表现为创新模式一体化的调节作用可以显著缓解技术锁定负效应。另外,异质性检验结果发现,创新能力不同未造成明显的技术锁定效应差异。研究结论对于积极调控我国技术锁定效应、推动创新驱动发展战略实施、促进经济高质量发展具有重要意义。     

基于演化博弈企业创新模式的策略研究

处于不同生命周期的企业面临的策略选择是不同的,通过博弈模型的假设,分析了企业合作与竞争的影响因素,结合企业不同发展阶段的影响因素的特点,提出了不同阶段的策略模式选择。从企业的不同生命周期的模型假设看出,竞争与合作策略选择是随着企业不同的发展阶段,各自的成本,收益以及在市场上是否处于有利地位的不同而不同的。对于企业而言,处于不同的生命周期,其面对的内外部环境是不同的,因此选择不同的战略模式,即选择不同降段的创新模式来实现各自更好更快的发展。