股权激励、反收购条款与企业创新

股权激励和反收购措施是公司内外部治理机制的重要方式.文章以2006—2017年沪深两市上市公司为研究样本,将股权激励、反收购条款和企业创新纳入统一分析框架中,考察两种公司治理机制对企业创新的综合影响.研究发现:股权激励显著提升企业创新产出水平,但反收购条款负向调节股权激励对企业创新的促进作用,控制内生性后结论依然成立.进一步分情景分样本进行分析发现,股权激励的创新效果相对稳定,但反收购条款的负向调节作用明显受外界环境和条件的影响,主要体现在市场竞争程度低、股权分散程度低及高管风险偏好程度低的企业中.本文的研究结论对理解股权激励的实施效果及反收购条款的公司治理作用具有一定的参考意义.     

印度辣椒的川渝之旅

联手打造内陆开放高地,以共建"一带一路"为引领,建设好西部陆海新通道,是推动成渝地区双城经济圈建设的一项重要内容,对重庆建设内陆开放高地意义重大。成渝地区从来交往密切,而这一次,我们在成渝间的交流中发现了一枚印度辣椒的身影。它的出现,把成渝地区双城经济圈、"一带一路"、西部陆海新通道等几个要素形象生动地串联在了一起。     

The impact of XBRL on real earnings management: unexpected consequences of the XBRL implementation in China

Review of Quantitative Finance and Accounting - In this paper, we investigate whether there is a change of real earnings management for firms facing pressures of the new technology implementation...     

Impact of Decision Rules and Non-cooperative Behaviors on Minimum Consensus Cost in Group Decision Making

Group Decision and Negotiation - In group decision making, it is sensible to achive minimum consensus cost (MCC) because the consensus reaching process resources are often limited. In this...     

Settlement procedures and stock market efficiency

This study examines why most derivatives markets that settle on the day following expiration choose the opening rather than the closing price as the final settlement price (FSP), whereas most markets that settle on the expiration day select an average rather than a single price as the FSP. Four exogenous changes in the Taiwan Futures Exchange settlement procedures provide an experimental basis for studying the settlement procedures’ impact on underlying assets. Greatest market efficiency is observed when the FSP is determined by a single rather than an average price and hypothesize that manipulation is prevented at the expense of market quality.     

乡村振兴战略下农村产业融合、人力资本与农民增收*——以浙江省为例

［目的］乡村振兴战略是贯彻新发展理念，建设现代化经济强国的重大战略之一。农村产业兴旺，农民生活富裕是乡村振兴战略的重要目标。农村一、二、三产业融合发展是实现乡村产业振兴，农民增收的重要途径。农村人力资本状况关系到农村产业融合的人才建设，关系到农民增收的实现。文章力图探究乡村振兴战略下农村产业融合、人力资本与农民增收间的相互作用关系，以期为乡村振兴战略的实现提供政策建议。［方法］以浙江省为例进行实证分析，通过建立PVAR模型，采用格兰杰因果关系及面板数据模型进行检验。［结果］农村产业融合及人力资本构成农民增收的格兰杰因果关系，两者都对农民增收产生显著影响，且人力资本影响效应更大。农民增收及人力资本对农村产业融合没有起到相应的促进作用。［结论］在实证分析的基础上，从加大人力资本投入、培育农村产业融合复合型人才及加强宣传引导工作等方面提出相应的政策建议促进农村产业融合。     

融资渠道与中国区域技术创新

运用2011-2016年中国内地31个省份面板数据，通过固定效应模型检验不同融资渠道对全国以及东中西部地区技术创新的影响。结果表明：①债权融资在整体上对技术创新影响不显著，分地区看，其在东部地区发挥了促进作用，而在中西部地区则起到抑制作用；②从整体及中西部地区看，股权融资对技术创新的影响不显著，且抑制了东部地区技术创新；③对股市板块进行细分后，整体上股权融资中只有创业板股权融资显著促进了技术创新水平提升，主板和中小板的作用均不显著。     

Variance swaps valuation under non-affine GARCH models and their diffusion limits

In this article, we investigate the pricing and convergence of general non-affine non-Gaussian GARCH-based discretely sampled variance swaps. Explicit solutions for fair strike prices under two different sampling schemes are derived using the extended Girsanov principle as the pricing kernel candidate. Following standard assumptions on time-varying GARCH parameters, we show that these quantities converge respectively to fair strikes of discretely and continuously sampled variance swaps that are constructed based on the weak diffusion limit of the underlying GARCH model. An empirical study which relies on a joint estimation using both historical returns and VIX data indicates that an asymmetric heavier tailed distribution is more appropriate for modelling the GARCH innovations. Finally, we provide several numerical exercises to support our theoretical convergence results in which we further investigate the effect of the quadratic variation approximation for the realized variance, as well as the impact of discrete versus continuous-time modelling of asset returns.     

EXPLAINING THE DECLINE OF THE U.S. SAVING RATE: THE ROLE OF HEALTH EXPENDITURE

The U.S. saving rate declined by 8% between 1980 and 2009. We document that the decline can be explained by rising health expenditures. Using exogenous variation in medical expenses generated by Food and Drug Administration drug approvals, we document that a 1 percentage point increase in health expenditure generated a decline in saving rate of 0.9 percentage points. We then estimate a model of household decisions to evaluate the mechanisms behind the decline. We find that the rise in health expenses and drop in saving rate are driven by progress in health technology, reduction in copayment rates, and improvements in income processes.