盈余反应非对称性：会计稳健性，抑或费用粘性

文章运用2008-2011年我国A股主板上市公司数据,首次将会计稳健性和费用粘性纳入同一研究框架来探究盈余反应非对称反应的根源。实证研究结果表明,基于会计稳健性根源的盈余反应非对称性系数不显著,基于费用粘性根源的盈余反应非对称性系数显著为正。这一结果表明,我国公司盈余反应非对称性的根源主要在于费用粘性,而非会计稳健性。     

The Variance Gamma Process and Option Pricing

A three parameter stochastic process, termed the variance gamma process, that generalizes Brownian motion is developed as a model for the dynamics of log stock prices. The process is obtained by evaluating Brownian motion with drift at a random time given by a gamma process. The two additional parameters are the drift of the Brownian motion and the volatility of the time change. These additional parameters provide control over the skewness and kurtosis of the return distribution. Closed forms are obtained for the return density and the prices of European options. The statistical and risk neutral densities are estimated for data on the S & P500 Index and the prices of options on this Index. It is observed that the statistical density is symmetric with some kurtosis, while the risk neutral density is negatively skewed with a larger kurtosis. The additional parameters also correct for pricing biases of the Black Scholes model that is a parametric special case of the option pricing model developed here.     

Non-tariff and overall protection: evidence across countries and over time

This paper analyzes the evolution of the incidence and intensity of non-tariff measures (NTMs). It extends earlier work by measuring protection from NTMs over time from a newly available database and provides evidence on the evolution of NTMs. In particular, building on Kee et al. (Econ J 119(534):172–199, 2009), this paper estimates the ad valorem equivalents of NTMs for 97 countries at the product level over the period 1997–2015. We show that the incidence and the intensity of NTMs were both increasing over this period, with NTMs becoming an even more dominant source of trade protection. We are also able to investigate the evolution of overall protection derived jointly from tariffs and NTMs. The results show that the overall protection level, for most countries and products, has not decreased despite the fall in tariffs associated with multilateral, regional and bilateral trade agreements in recent decades. We also document an increase in overall trade protection during the recent 2008 financial crisis. Overall, this study sheds light on an under-researched aspect of trade liberalization: the proliferation and increase of NTMs.     

税收征管与企业融资约束——基于金税三期的政策效应分析

本文基于2010-2015年全国税收调查数据,选择金税三期在全国试点推行事件作为准自然实验,应用双重差分法(DID)研究政府加强税收征管对企业融资约束的影响.实证结果表明:政府加强税收征管,总体上能够显著缓解企业融资约束程度.具体分析,加强税收征管可形成"征税效应",抑制企业通过避税方式进行融资;加强税收征管可形成资金供需方之间的"桥梁效应",促进企业信用融资和贷款融资;加强税收征管形成"治理效应"抑制管理层代理行为,降低代理成本,促进企业外部融资.进一步研究发现,既有的政企之间信息不对称性和金融发展程度会影响税收征管对融资约束的缓解效果,为深入分析税收征管对企业融资约束的影响提供了新的经验证据.     

企业集群——西部传统型中小企业发展之路

“企业集群”是温州民营企业迅猛发展的杀手锏，笔者在作西部传统型中小企业相关课题中研究发现：“企业集群”同样是西部传统型中小企业崛起的关键，是西部经济腾飞的关键。     

The association between continuing professional education and financial performance of public accounting firms

This study investigates the relationship between continuing professional education (CPE), a mechanism of professional training, and financial performance of public accounting firms. Both training subject (partner and assistant) and training location (internal and external) are included. Public accounting firms are categorized as big, medium, and small-sized ones. Empirical data are obtained from the 1992–1995 Survey Report of Public Accounting Firms in Taiwan, published by the Financial Supervisory Commission, Executive Yuan, Taiwan, ROC. Univariate test and multiple-regression model are employed to examine the financial performance effects of CPE. Main results indicate that both professional training of assistants and external professional training are positively related to financial performance in big-sized firms. Next, we document a significantly positive association between internal training of assistants and financial performance in either big-, medium-, or small-sized firms. Finally, both external professional training of partners in big-sized firms and external professional training of assistants in small-sized firms are positively related to financial performance. Few prior studies investigate professional training of public accounting firms by a regression model due to availability of empirical data. Accordingly, evidences obtained in this study provide useful information to partners for decision-making in public accounting firms under the considerably competitive audit market.     

资产减值准备的相关实务处理分析

资产减值准备规范了企业对资产减值的判断标准、计量及损失的处理,为真实反映企业资产提供了政策依据。文章通过对不同情况下的资产减值准备分析,结合实际工作,对如何进行相关会计处理进行了实例分析。     

千里走青藏——《东方时空》联合台港澳五大媒体推出大型系列报道

跨越世界屋脊——青藏铁路 2006年7月15日，举世瞩目的青藏铁路将实现全线试运营，青藏铁路将成为世界上海拔最高、线路最长的高原铁路，这是人类铁路建设史上的奇迹，是中国人引以为骄傲的伟大成就。西方舆论称之“堪与长城媲美”。     

Pre-positioning hurricane supplies in a commercial supply chain

Inventory control for retailers situated in the projected path of an observed hurricane or tropical storm can be challenging due to the inherent uncertainties associated with storm forecasts and demand requirements. In many cases, retailers react to pre- and post-storm demand surge by ordering emergency supplies from manufacturers posthumously. This wait-and-see approach often leads to stockout of the critical supplies and equipment used to support post-storm disaster relief operations, which compromises the performance of emergency response efforts and proliferates lost sales in the commercial supply chain. This paper proposes a proactive approach to managing disaster relief inventories from the perspective of a single manufacturing facility, where emergency supplies are pre-positioned throughout a network of geographically dispersed retailers in anticipation of an observed storm's landfall. Once the requirements of a specific disaster scenario are observed, supplies are then transshipped among retailers, with possible direct shipments from the manufacturer, to satisfy any unfulfilled demands. The manufacturer's pre-positioning problem is formulated as a two-stage stochastic programming model which is illustrated via a case study comprised of real-world hurricane scenarios. Our findings indicate that the expected performance of the proposed pre-positioning strategy over a variety of hurricane scenarios is more effective than the wait-and-see approach; currently used in practice.