基于电子鼻、电子舌技术的姜厚朴炮制机理探讨

为了从气、味角度阐述姜制厚朴刺激性降低的炮制内涵,采用电子舌、电子鼻分别对15份厚朴药材、15份净厚朴、15份姜厚朴进行炮制前后味觉和气味定量化测定,分别利用配对样品t检验和主成分分析的方法解析炮制前后厚朴味觉和气味的变化.结果显示,味觉中只有涩味在炮制后降低,具有显著差异(P<0.05),而电子舌的涩味传感器是对涩味...     

论农行三农金融事业部改革的制约因素

2010年银监会推出了《中国农业银行三农金融事业部制改革与监管指引》,吉林做为改革试点,按照总行、省行、市行＂三级督导＂,县域支行＂一级经营＂的事业部管理架构,率先进行了改革,经过一年多的经营运作,农行三农金融事业部实现了机制的顺利转轨,各项业务发展较快,但仍存在制约因素,本文以辽源农行为实例,对此进行了一些积极探索。     

煤矿企业内部安全监管博弈分析

本文针对煤矿事故频发问题,从经济利益角度出发,应用博弈理论的基本原理,建立了煤矿企业内部安全管理人员与一线员工之间的博弈模型,对模型进行了求解,得出了混合策略的纳什均衡解,并结合实例对煤矿企业内部安全监管博弈进行了分析,为完善企业安全管理体系提出了对策与建议.     

Trading Against the Random Expiration of Private Information: A Natural Experiment

For years, the Securities and Exchange Commission (SEC) accidentally distributed securities disclosures to some investors before the public. We exploit this setting, which is unique because the delay until public disclosure was exogenous and the private information window was well defined, to study informed trading with a random stopping time. Trading intensity and the pace at which prices incorporate information decrease with the expected delay until public release, but the relation between trading intensity and time elapsed varies with traders' learning process. Noise trading and relative information advantage play similar roles as in standard microstructure theories assuming a fixed time window.     

亚洲新兴经济体国际资本流动驱动因素研究——基于GMM模型的实证分析

理解资本流入的驱动因素,对于设计一个有效的资本流动管理政策框架至关重要。本文研究了1998年至2018年间45个新兴经济体面临的各类资本流动的驱动因素,重点分析了资本流向亚洲地区的驱动因素与其他地区的共性和异质性。使用广义矩估计方法(GMM)对面板数据集的实证结果表明,对新兴经济体而言,制度质量和国内因素对吸引资本流入具有重要影响;对亚洲地区来说,人均收入增长和贸易开放是吸引资本流入的重要驱动因素,国内外利差水平和实际有效汇率变动对吸引组合投资和其他投资具有显著影响,VIX指数和影子利率对亚洲新兴经济体资本流动规模的影响也具有重要影响。这表明,在设计管理资本流入的政策框架时,全球经济金融合作和政策协调应被考虑在内。     

信贷、杠杆率与经济增长：150年的经验与启示

本文分析了信贷增长与经济增长之间的关系,信贷本质上是借助实体经济活动促进增长,若出现错误配置.过多的信贷将不能带来更快的增长。本文通过对美英日德等发达经济体150年来的杠杆率和经济增长关系的分析发现,杠杆率具有长周期特征,大致呈现三四十年的变化周期。中国改革开放40年至今,宏观杠杆率基本处在一个周期的峰值附近,因此,去杠杆成为必然之选。在政策层面,中国去杠杆过程需稳中求进,要将强制性的市场出清作为去杠杆的前提.警惕強调宽松环境下的去杠杆,故总体上需保持偏紧的货币环境。     

Does the Control-based Approach to Consolidated Statements Better Reflect Market Value than the Ownership-based Approach?

Motivated by the recent Discussion Paper (DP) issued by the Financial Accounting Standards Board (FASB) and the International Accounting Standards Board (IASB) on how to define reporting entities, this study investigates the value relevance of consolidated statements under the ownership-based approach of U.S. Accounting Research Bulletin No. 51 (ARB 51) and the control-based approach of International Accounting Standard No. 27 (IAS 27). The results show that consolidated financial statements based on a broader definition of control provide more useful accounting information than those based only on majority-ownership control. We also address one concern raised in the DP, namely, whether a reporting entity should use the common control model to include entities that are under common control of an individual investor or family. The results suggest that accounting standard boards should include the common control model in defining the group reporting entity for firms with complex ownership structures.     

Short selling activity,price efficiency and fundamental value of IPO stocks

In this study, we take advantage of the unique features of the Taiwan stock market, where short selling is forbidden within the first six months following an IPO. We examine the effects of short selling on IPO price efficiency and the relation between short selling activities and the fundamental value of IPO stocks. We find that price efficiency is improved with increased short selling after the lifting of short sale constraints on IPO stocks. We also show that short sellers tend to target IPO stocks with low fundamental ratios, but simultaneously avoid stocks with high transaction costs. In addition, we provide empirical evidence that short sellers focus more on temporary price fluctuations rather than temporary fluctuations in fundamentals.     

企业竞争优势根源的理论演进

企业的竞争优势已成为战略管理领域的一个重要研究方向。半个世纪以来,探讨持续竞争优势的文献层出不穷。在众多战略管理文献中,对于企业如何获得竞争优势这一问题,学者们主要基于企业内部和外部两种视角进行研究,试图找到企业获取竞争优势的根源。本文拟对探讨企业竞争优势根源的各种理论观点进行较为系统的梳理,通过分析总结,指出这些理论观点所存在的局限性。最后,在已有研究的基础上,本文认为能力生命周期概念为获取企业竞争优势的根源提供了一个新的思路,并提出了企业竞争优势来源研究模型,以指导企业赢得竞争优势。     

Hot money in disaggregated capital flows

We explore the possible existence and behavior of hot money in six categories of disaggregated bilateral capital flows (equity inflows, equity outflows, bond inflows, bond outflows, banking credit inflows, and banking credit outflows) for 12 emerging markets vis-à-vis the US from 1995 to 2012 and provides several new findings. First, we identify the existence of hot money in all six categories above and conclude that both gross inflows and gross outflows can be the sources of hot money. Second, hot money in equity inflows (outflows) engages in positive (negative) feedback trading regarding local stock market returns. Third, some categories of hot money have a temporary influence on local stock market returns while the others have a permanent influence, supporting the explanations of both price pressures and information advantage. Finally, local stock market returns in half of our sample countries, which have tightened capital controls during the late 2000s global financial crisis (GFC), are more affected by hot money than in the other half. Our findings confirm several popular conjectures of hot money, and endorse the use of capital controls to limit financial vulnerability in the run-up to and during the GFC.