The Informational Role of Stock and Option Volume

This article analyzes the intraday interdependence of orderflows and price movements for actively traded NYSE stocks andtheir Chicago Board Options Exchange (CBOE)-traded options.Stock net trade volume (buyer-initiated volume minus seller-initiatedvolume) has strong predictive ability for stock and option quoterevisions, but option net trade volume has no incremental predictiveability. This suggests that informed investors initiate tradesin the stock market but not in the option market. On the otherhand, both stock and option quote revisions have predictiveability for each other. Thus, while information in the stockmarket is contained in both quote revisions and trades, informationin the option market is contained only in quote revisions.     

Debt and Equity Characteristics of Mandatorily Redeemable Preferred Stock

Abstract. This study examines whether mandatorily redeemable preferred stock (MRPS) is priced more like debt or equity by (1) investigating its debt and equity characteristics and (2) specifying conditions under which one characteristic would dominate the other. Based on a sample of 113 nonconvertible MRPS issued during 1970 to 1990, our results are consistent with the view that MRPS has both debt and equity characteristics. The debt (equity) feature is more pronounced among nonutility (utility) issues. Within the utility group, we find high (low) rated MRPS issues to be more debt (equity) like. Our results appear to support current MRPS disclosure rules.     

管理层薪酬和持股激励效应的行业性差异分析--来自我国上市公司的实证证据

本文的研究以我国上市公司不同行业的实际数据为考察样本,运用实证分析方法验证我国上市公司不同类型行业管理层薪酬和持股与公司绩效之间的相关关系,分析结果表明:我国上市公司管理层薪酬和持股激励效应存在着较大的行业性差异,并提出不同行业企业应该根据自身特点和性质以及管理层薪酬和持股激励效应的大小,相机选择薪酬激励或股权激励,制定出详细周密、客观有效、切合实际的企业管理层激励方案,从而使其激励效应最大化。     

城市商业银行信息化发展中的数据挖掘分析

近年来,以互联网为代表的信息技术飞速发展,深刻地影响了商业银行传统的运作模式,信息技术也打破了传统的金融市场竞争格局,为在竞争中处于相对弱势地位的城市商业银行的发展提供了新的条件与机遇.     

乡镇财政自给能力分析

乡镇财政危机目前作为一个重要问题成为各界关注焦点,乡镇财政赤字和负债数额巨大,乡镇财政自给程度到底有多大,本文运用财政能力系数指标来定量探讨乡镇财政的危机程度,通过全国五级财政自给系数纵向对比、分省区四级财政自给能力纵向和横向对比以及两个乡镇个案的财政自给系数,来揭示乡镇财政危机的制度内涵.     

创业投资业:从技术创新到制度创新

技术创新是我国经济结构调整的重要推动力,而创业投资是推动技术创新的重要手段,良好的创业投资制度安排则是促进科学技术转化为生产力的有力保障.本文从分析我国当前经济问题的角度入手,论证了创业投资在推动技术创新中的作用,以及制度创新与创业投资业发展之间相辅相成的关系,并在此基础上,提出了创业投资运作机制的设想.     

论我国农业保险发展模式的选择

近年来,我国农业保险业的发展势头趋缓,突出表现在农民迫切需要农业保险而各商业保险公司都不愿涉足该领域.造成这一现象的主要原因是农业风险的特殊性、缺乏有效的农业保险巨灾基金积累制度以及立法滞后等.对此,我国应在借鉴国外农业保险经验,并结合我国国情,探索出一条切实可行的农业保险经营之路.     

30万吨燃料乙醇装置仿真培训系统的开发

介绍了燃料乙醇仿真系统软、硬件的结构,着重阐明了它的设计思想和技术特色;标准、适用、灵活是该系统的最重要的特点;实现了全流程的仿真;该系统既可用于培训,还可用于运行指导.     

Sociology,risk and the environment: a material-semiotic approach

Abstract

Sociology has made significant contributions to the conceptualisation of risk and critique of technical risk analysis. It has, however, unintentionally reinforced the division of labour between the natural/technical and social sciences in risk analysis. This paper argues that the problem with conceptualisations of risk is not a misplaced emphasis on calculation. Rather, it is that we have not adequately dealt with ontological distinctions implicit in both sociological and technical work on risk between material or objective risks and our socially mediated understandings and interpretations of those risks. While acknowledging that risks are simultaneously social and technical, sociologists have not, in practice, provided the conceptual and methodological tools to apprehend risk in a less dualistic manner. This limits our ability both to analyse actors and processes outside the social domain and to explore the recursive relationships between risk calculus, social action and the material outcomes of risk. In response, this paper develops a material-semiotic conceptualisation of risk and provides an assessment of its relevance to more sociologically informed risk governance. It introduces the ideas of co-constitution, emergent entities and enactment as instruments for reconciling the material and social worlds in a sociological study of risk. It further illustrates the application of a material-semiotic approach using these concepts in the nuclear industry. In deconstructing social–material dualisms in the sociology of risk, this paper argues that a material-semiotic conceptualisation of risk enables both technical and social perspectives on risk not only to coexist but to collaborate, widening the scope for interdisciplinary research.