浅谈经济责任审计存在的问题及对策

近年来经济责任审计工作已成为审计机关的重要工作之一,也已取得了较大的成绩,但目前还存在一些问题需要加以重视,本文就经济责任审计中存在的问题及解决对策提出几点粗浅看法。     

Hedging and value at risk: A semi‐parametric approach

The non‐normality of financial asset returns has important implications for hedging. In particular, in contrast with the unambiguous effect that minimum‐variance hedging has on the standard deviation, it can actually increase the negative skewness and kurtosis of hedge portfolio returns. Thus, the reduction in Value at Risk (VaR) and Conditional Value at Risk (CVaR) that minimum‐variance hedging generates can be significantly lower than the reduction in standard deviation. In this study, we provide a new, semi‐parametric method of estimating minimum‐VaR and minimum‐CVaR hedge ratios based on the Cornish‐Fisher expansion of the quantile of the hedged portfolio return distribution. Using spot and futures returns for the FTSE 100, FTSE 250, and FTSE Small Cap equity indices, the Euro/US Dollar exchange rate, and Brent crude oil, we find that the semiparametric approach is superior to the standard minimum‐variance approach, and to the nonparametric approach of Harris and Shen (2006). In particular, it provides a greater reduction in both negative skewness and excess kurtosis, and consequently generates hedge portfolios that in most cases have lower VaR and CVaR. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 30:780–794, 2010     

Core competences,strategy and performance: the case of international retailers in China

This research aims to analyse the central role of core competences in retail internationalisation. The authors analyse field data generated from in-depth interviews of top Chinese subsidiary managers, using the principles of the grounded theory methodology. The inductive process identified two types of core competences in the subsidiaries of international retailers: basic competences and architectural competences. This classification leads to research propositions on the impact of the core competences on strategy choice, and on the performance of the subsidiaries of international retailers.     

新技术助力媒介迈入web3．0

Web2．0时代促使了网民意识的觉醒,人们开始呼唤新技术来满足自己的网络体验,丰富自己的网络生活。因此,随着新技术的不断开发,人们也慢慢进入web3．0时代。与此同时,大众传媒又将迎来新一轮的挑战。本文选取了三种新技术：云计算和大数据技术、移动互联网技术和物联网技术,分别给出了在这三种技术的冲击之下媒介的应对之道。     

高效液相色谱-原子荧光光谱联用技术测定水产品及产地底泥中4种砷的形态残留

建立了高效液相色谱原子荧光分光光度法在线联用技术测定水产品及产地底泥中砷4种形态残留的方法。对前处理方法和液相色谱的最佳参数进行优化,实验表明,4种砷化合物的线性范围为20-100g/L,相关系数(r)均优于0.999,三价砷、一甲基砷、二甲基砷、五价砷的仪器最低检出限分别为0.3、0.9、1.2、7.9μg/L。加标平均回收率为89.99%-97.00％,变异系数为2.05%-4.42％。     

超声波辅助提取小麦胚芽油的工艺研究

实验以麦胚为原料,采用超声波辅助浸提小麦胚油。研究超声温度、超声处理时间、超声功率和料液比对小麦胚芽油出油率的影响,并正交试验结果进行分析。实验显示：料液比1：7（W／V）、超声波处理时间10min、超声波处理温度45℃、超声波功率250W,其出油率为9．81％。超声波辅助提取是一种有效的油脂提取方法。     

非森林资源丰富地区建成林业产业大省经验与做法——以江苏省为例

介绍了非森林资源丰富地区成为林业产业大省的经验与做法。江苏省积极利用"两个市场、两种资源",大力实施五项重点林业产业工程,推动了全省林业产业的发展。2010年,全省林业总产值达1560亿元,以占全国0.7%的林地,创造了占全国7%的林业产业产值,走出了一条兴林富民、特色明显、优质高效的林业产业发展之路,促进了林业增效、农民增收。     

Challenges and potential improvements in the policy and regulatory framework for sustainable tourism planning in China: the case of Shanxi Province

A sound policy and regulatory framework is essential in planning for sustainable tourism development. The paper examines opportunities and challenges for China's planning for sustainable tourism development from both policy and regulatory perspectives. Despite the enthusiasm for sustainable tourism, China's existing relevant policy and regulatory frameworks are generally fraught with contradictory objectives, and they are also often incoherent, have ambiguous legal provisions, and many organizations have duplicate responsibilities, unclear definitions of responsibilities, interlocking activities, and weak coordination due to the complicated institutional structure. Based on Shanxi Province, the paper explores the policy and regulatory issues affecting tourism and its sustainability, and it also assesses the possible options to foster an improved policy and regulatory framework for China's sustainable tourism development. A much stronger political will from all levels of government will be required to overcome a prevalent mindset for short-term economic growth and deep-rooted practices in pursuit of departmental benefits. It is also necessary for China and Shanxi under the new national tourism law to articulate and coordinate its laws and regulations with much improved supportive bylaws. Finally, more rational and effective institutional arrangements are needed, with clearly defined functions and responsibilities for government at varied levels.     

台湾地区私募公司债市场的发展与启示

本文对台湾私募债券市场的发展状况进行了研究,分析了台湾地区私募公司债市场发展缓慢的原因.研究结果表明:尽管台湾地区仿效美国建立了较为完备的私募制度,但台湾地区私募公司债市场发展缓慢,其主要原因在于台湾私募公司债发行制度并没有明显的简化便利优势,市场流动性受到较多限制,而且市场透明度也相对较低.台湾地区私募公司债的发展为大陆私募债券市场的制度设计提供了启示,即私募公司债的发行主体要更加多元化、转让制度要更加灵活、参与者要更加丰富、监管制度要更加完备.