提高对雷达隐蔽扫描角跟踪系统干扰性能的研究

分析了对隐蔽扫描雷达角跟踪系统实施匀速扫频式干扰的缺点。提出了一种实现快速一慢速扫频的方法，即先快速扫描以捕捉雷达角扫描频率范围，再在此小范围内进行慢扫。以确定敌方雷达的角扫描频率。文中还给出了改进的系统结构和主要电路框图，并结合该系统的改进内容针对研究中的主要技术难点作了详细的分析。     

中国服务业外商直接投资的区位选择因素分析

随着服务业开放程度的加深,服务业外商直接投资(FDI)流入的规模正在迅速增长。由于服务企业的经营活动具有自身的特点,其区位决策也必然不同于制造企业。文章试图从服务业的特征出发,探讨服务业跨国投资的区位选择动因,并在此基础上对服务业FDI在中国的区位影响因素进行实证检验。在前人研究的基础上,本文系统整理了服务业外商直接投资区位选择的影响因素,并建立了初步的理论分析框架,从需求因素、供给因素和市场环境因素三个方面分析服务业跨国公司的投资区位选择行为。随后,利用1998-2004年中国大陆15个省市的面板数据进行计量检验,结果发现:(1)从全国来看,基础设施和政府干预程度是影响我国服务业FDI区位选择的关键因素;(2)在东部地区,服务业FDI体现出较强的追随客户的特性,而中西部地区需要加大基础建设投资才能吸引更多的服务业FDI;(3)分时期的检验结果表明,服务业FDI追随客户的特性有逐渐加强的趋势。此外,服务业跨国公司在投资时一直对经济开放程度高的地区有所偏爱。     

高校网上招生数据处理技术

随着高校信息化的推进,“全国普通高校招生网上录取应用软件高校子系统”在进行高校端的数据处理和后期相关工作中已凸现出很多功能局限。结合高校招生实际工作,对高校网上招生后续数据处理技术进行深入研究,可以提出相关软件系统开发的可行性技术方案。     

美国次贷危机形成机理及对我国经济的影响

最近,美国连续和集中爆发了一连串重大金融事件,全球经济增长缓慢,次贷危机的影响越来越大,可以这样说,美国金融危机目前已进入高潮。次贷危机通过金融渠道对中国经济的稳定与健康产生了直接影响,正是在这样的背景下,本文从经济增长的三驾马车—投资、消费、贸易三个角度来分析美国次贷危机对我国经济影响进行分析研究,并在此基础上提出我国应对的策略。     

The consequences to analyst involvement in the IPO process: Evidence surrounding the JOBS Act

The JOBS Act allows certain analysts to be more involved in the IPO process, but does not relax restrictions on analyst compensation structure. We find that these analysts initiate coverage that is more optimistically biased, less accurate, and generates smaller stock market reactions. Investors purchasing shares following these initiations lose over 3% of their investment by the firm's subsequent earnings release. By contrast, issuers, analysts, and investment banks appear to benefit from this increased bias, as optimism is more positively associated with proxies for firm visibility and investment banking revenues when analysts are involved in the IPO process.     

The Reluctant Analyst

We estimate the dynamics of recommendations by financial analysts, uncovering the determinants of inertia in their recommendations. We provide overwhelming evidence that analysts revise recommendations reluctantly, introducing frictions to avoid frequent revisions. More generally, we characterize the sources underlying the infrequent revisions that analysts make. Publicly available data matter far less for explaining recommendation dynamics than do the recommendation frictions and the long‐lived information that analysts acquire but the econometrician does not observe. Estimates suggest that analysts structure recommendations strategically to generate a profitable order flow from retail traders. We provide extensive evidence that our model describes how investors believe analysts make recommendations, and that investors value private information revealed by analysts' recommendations.     

Disclosure and the cost of equity in international cross-listing

In this paper, we examine the relationship between disclosure level and the cost of equity capital for a sample of international firms cross-listing on the New York Stock Exchange. Increased disclosure has the potential to reduce information asymmetry, reduce the cost of financing and increase analyst following. Using an international asset pricing model, we find that listing firms experience a decrease in both disclosure risk and systematic risk while matching firms do not. Further, we find that the magnitude of the decrease is related to three types of disclosure: accounting standards; analyst following; and exchange/regulatory investor protection. Our results suggest that increased disclosure through accounting standards is beneficial to investors and that disclosure can be accomplished through information intermediaries, e.g., analyst following. For firms with the lowest levels of disclosure prior to cross-listing, all three types of disclosure appear to be valuable.

The Determinants and Effects of Clients Following Audit Partners Who Switch Audit Firms

Abstract

We examine the determinants of clients’ decision to follow departing partners to new audit firms and the effect of this decision on the likelihood of financial restatements. Using Taiwanese audit partner turnover data from 1984 to 2010, we find that clients are more likely to follow departing partners when the partners have more clients, longer tenure, and when both lead and concurring partners leave simultaneously. By contrast, clients are more likely to stay with their incumbent audit firms when the firms are one of the Big Four or when only the concurring partners leave. The extended partner tenure due to clients following departing partners, however, does not enhance audit quality. In fact, clients that stay at the incumbent firm experience a significant decrease in the probability of financial restatements in the first year after the audit partners leave, but clients that follow do not.     

组织体系中的追随研究述评

学术界和实业界对组织管理系统中追随的认识经历了从追随歧视到追随反思的变化,并给予追随越来越多的关注.本文在界定追随主体和追随力的内涵的基础上,试图将国内外学者对追随研究的成果进行梳理,并对研究现状进行述评.     

盈余构成、持续性差异与财务分析师盈余预测——基于我国A股上市公司的经验分析

遵循Sloan的经典研究思路,从分析师对盈余构成持续性差异区分的角度,对我国分析师盈余预测的有效性进行了实证研究。研究发现,我国的财务分析师高估了所有盈余构成的持续性,其发布的盈余预测虽然能够反映出应计利润的低持续性和现金流量的高持续性,但不能恰当地反映出操控性应计利润与非操控性应计利润之间的持续性差异。进一步的研究表明,财务分析师对盈余构成持续性的高估会显著影响其整体盈余预测准确度,这意味着我国财务分析师发布的盈余预测是有一定信息含量的,但在应对复杂会计信息时仍显不足。