光纤通道异常的分析方法探究

针对保护装置光纤通道异常的现象,介绍了光纤通道结构及通道衰耗的计算方法。给出了光纤通道异常时查找故障元件的步骤,分析了经常出现的问题,并通过实例讲述了光纤通道异常的分析方法。     

外资非正常撤离法律对策的探讨

外资非正常撤离是指未履行在中国的纳税和清算义务的外资退出行为。频繁发生的外资非正常撤离,不仅给中国相关利益方造成了严重的经济损失,而且对中国的投资环境和社会稳定也带来了消极影响。国际金融危机的爆发在很大程度上诱发了外资撤离,但从深层次角度分析,地方政府部门过度追求"经济财政"却是外资非正常撤离的根本原因。在客观认识外资非正常撤离原因的基础上,有必要研究应对外资非正常撤离的法律对策,包括完善和建立外资信用机制、监管清算机制、紧急联动机制、法律追究机制等行之有效的补救机制,减少外资非正常撤离的负面影响,不断完善外商投资法律体制。     

The impact of mergers on acquiring firm shareholder wealth: The 1905–1930 experience

From the standpoint of investors successful acquisitions increase profitability and stock Contemporary studies find acquiring firm shareholders earning small gains before and large losses after consolidation. Using modern financial market procedures, we examine a portfolio of 191 acquiring firms from 1905 to 1930 to determine the impact on firm owners of early industrial acquisitions in the United States and the effect of institutional changes on takeover gains. Acquisitions from 1905 to 1930 raised shareholder wealth by more than 3 percent, an increase exceeding gains from more recent mergers. Stock price continued to rise after completion for acquisitions before World War I, but fell dramatically for acquisitions during the oligopoly merger wave of the late 1920s.We would like to thank Patrick Byrne and Tara Nussman for help in collecting the financial data, Ralph Nelson for permitting us to use his and Carl Eis's worksheets on merger activity from 1905 to 1930, and George Bittlingmayer, Malcolm Burns, David Gulley, Stephen Grubaugh, Lori Leeth, John Matsusaka, Dennis Mueller, Rexford Santerre, Scott Sumner, Tugrul Temel, and Nikhil Varaiya for their helpful comments.     

Agency costs and business cycles

Summary. This paper develops a model with endogenous agency costs that is otherwise quite similar to the canonical real business cycle model. The traditional assumption in the literature is that these agency costs arise in the production of investment goods. In contrast, this paper assumes that these costs are all encompassing in the sense that they arise in the production of aggregate output. The paper explores both the importance of the investment vs. output assumption for business cycle dynamics, and the conditions under which these agency models can deliver amplification and/or persistence. The paper has two principal conclusions. First, in terms of amplification and propagation, the output model performs worse than does the investment model. This arises because a variable distortion in the investment market has more of an impact than a comparable distortion in the output market. Second, in this model with optimal consumption choice by entrepreneurs, there is a clear tension between amplification and persistence. Received: December 30, 1997; revised version: April 1, 1998     

ON VALUING STOCHASTIC PERPETUITIES USING NEW LONG HORIZON STOCK PRICE MODELS DISTINGUISHING BOOMS,BUSTS, AND BALANCED MARKETS

For longer horizons, assuming no dividend distributions, models for discounted stock prices in balanced markets are formulated as conditional expectations of nontrivial terminal random variables defined at infinity. Observing that extant models fail to have this property, new models are proposed. The new concept of a balanced market proposed here permits a distinction between such markets and unduly optimistic or pessimistic ones. A tractable example is developed and termed the discounted variance gamma model. Calibrations to market data provide empirical support. Additionally, procedures are presented for the valuation of path dependent stochastic perpetuities. Evidence is provided for long dated equity linked claims paying coupon for time spent by equity above a lower barrier, being underpriced by extant models relative to the new discounted ones. Given the popularity of such claims, the resulting mispricing could possibly take some corrections. Furthermore for these new discounted models, implied volatility curves do not flatten out at the larger maturities.     

可转换债券发行的长期股票市场价格绩效研究

应用长期事件研究法,对2000-2004年间发行可转换债券的上市公司的长期市场绩效表现进行了实证研究。研究结果表明,可转债发行前后,可转债标的公司的长期股票价格绩效在绝大多数区间上显著优于行业、规模与权益市值对面值比率的对照组,也显著优于等权加权和总市值加权的综合市场收益率;选择兼有债权和股票期权双重属性的可转债,在一定程度上可以维持标的公司股票价格长期绩效的优良表现。     

How Does Stock Market React to Dividend Surprises? Evidence from Emerging Markets of India and Russia

In this article the authors empirically investigate information content of dividends announcements and average reaction of emerging markets of India and Russia to dividend surprises on the postcrisis period 2010 to 2014. The study applies an analysts’ expectations-based approach rarely used in academic literature. The authors conclude that the Russian market on average reacts negatively to good and bad dividend surprises; good dividend surprises on average trigger positive abnormal returns on Indian stocks, whereas bad and no surprises are associated with negative reactions of the Indian market. Results of the study are discussed from the perspective of dividend signaling theory, market efficiency, and investor behavior.     

The effects of exchange rate fluctuations on exports: A sectoral analysis for Turkey

This paper examines the effects of exchange rate fluctuations on disaggregated data comprising 21 exporting sectors (BEC classification) in Turkey. Building on a theoretical model that decomposes movements in the exchange rate into anticipated and unanticipated components, the empirical investigation traces the effects through demand and supply channels. Anticipated exchange rate appreciation, in line with movements in underlying fundamentals, has significant adverse effects, contracting export growth across many sectors. Random fluctuations in the exchange rate, deviations around steady-state equilibrium, have asymmetric effects on sectoral export growth. The evidence indicates increased contraction of export demand to currency appreciation over time. In contrast, the effect of depreciation in stimulating export growth has lost momentum over time. While exchange rate fluctuations had a positive net effect on export growth before 2003, the net effect is negative for the post-2002 period. The implications are anticipated movement in the exchange rate guides export plans, signaling the importance of managing fundamentals to anchor rational forecasts. Moreover, less variability of the exchange rate is likely to improve sectoral export growth in Turkey over time.     

Intertemporally dependent preferences and optimal dynamic behavior

We study a model of optimal dynamic behavior in which the intertemoral preferences preserve the time additively separable framework of Ramsey models, while exhibiting Edgeworth–Pareto complementarity between consumption in adjacent periods. We identify economic environments in which global optimal dynamics under intertemporal complementarity exhibits persistent fluctuations even though the misspecified Ramsey-type theory, under the intertemporal independence assumption, predicts monotone convergence.     

目标企业创新能力对并购双方收益的影响——基于中国A股市场的实证分析

本文以中国A股市场的2 143件并购交易为样本,以并购溢价和短期超额收益作为并购收益的测度指标,分析目标企业创新能力对并购收益的影响。结果表明,并购溢价与目标企业的创新能力显著正相关,且创新能力水平越高,并购溢价越显著;并购企业获得的短期超额收益也与创新能力显著正相关。因此,以有创新能力的企业为目标的并购交易能够使双方获得更大的短期收益,资本市场的并购是反映创新的市场价值的重要途径,能够提供激励企业创新的重要机制。