Why do security prices change? A transaction-level analysis of NYSE stocks

This article develops and tests a structural model of intradayprice formation that embodies public information shocks andmicrostructure effects. We use the model to analyze intradaypatterns in bid-ask spreads, price volatility, transaction costs,and return and quote auto-correlations, and to construct metricsfor price discovery and effective trading costs. Informationasymmetry and uncertainty over fundamentals decrease over theday, although transaction costs increase. The results help explainthe U-shaped pattern in intraday bid-ask spreads and volatility,and are also consistent with the intra-day decline in the varianceof ask price changes.     

Do corporate insiders circumvent insider trading regulations? The case of stock repurchases

We use calculated values of standardized abnormal insider trading activity to investigate for patterns of unusual insider activity around fixed-price and Dutch auction repurchase announcements. Firms are classified according to whether the repurchase is signaling information about future cash flows, about the distribution of excess free cash flows, or about management's attempts to maintain control in the presence of a takeover. We find below normal levels of sales well before the event and above normal levels of sales after the event. This tendency is strongest for fixed-price offers and for firm's conveying information about future cash flows, and is absent for firms involved in takeovers. No evidence exists of abnormal levels of purchases before or after the event. We interpret the evidence as consistent with insiders successfully circumventing policies and regulations designed to prevent the exploitation of private information by timing the pattern of their security sales.     

The Relevance of Stock and Flow-Based Reporting Information In Assessing the Likelihood of Emergence from Corporate Financial Distress

A number of recent studies have shown that earnings information is less useful and value relevant when firms are financially troubled. This finding has given rise to the consideration of alternatives. In this paper, we examine the contributions of book value-based proxies (normal earnings and abandonment value) and flow-based proxies (earnings and operating accruals) to the assessment of the likelihood of emergence from financial distress. Our prior reasoning is that while book value-based proxies may provide information about potential future cash resources, flow-based proxies, because they capture the progress of reorganization efforts underway, as opposed to mere potential, should be relatively more useful in assessing the likelihood of emergence from distress. Our findings are consistent with this explanation. We document that the primary predictors of emergence are flow-based proxies—in particular, cash from operations, net of earnings.     

Relative accuracy and predictive ability of direct valuation methods, price to aggregate earnings method and a hybrid approach

In this paper, we assess the relative performance of the direct valuation method and industry multiplier models using 41 435 firm‐quarter Value Line observations over an 11 year (1990–2000) period. Results from both pricing‐error and return‐prediction analyses indicate that direct valuation yields lower percentage pricing errors and greater return prediction ability than the forward price to aggregated forecasted earnings multiplier model. However, a simple hybrid combination of these two methods leads to more accurate intrinsic value estimates, compared to either method used in isolation. It would appear that fundamental analysis could benefit from using one approach as a check on the other.     

"坚持有所为,有所不为"专访天津防织工业大学校长张宏伟

<中国纺织>:天津工业大学在科学技术创新、重大科学技术成果转化和高新技术产业化中取得不少突破,促进纺织工业科技进步做出了贡献,并获得中国纺织工业协会科学技术贡献奖.请您谈一下天津工业大学目前的产学研结合的状况如何?     

苏拉:彰显科枝的力量专访苏拉纺织系统(苏州)有限公司总经理徐林峰先生

<中国纺织>:苏拉宣称苏拉成功要素之一就是技术革新领先,那么苏拉如何看待技术创新在市场竞争中的重要性?苏拉怎样做到在纺纱设备技术创新方面始终保有绝对优势?     

"担心美中贸易遇新阻碍"

面临新的自由贸易时代,中国纺织服装业极为关注像杰西潘尼(J.C.Penney)这样的大型纺织品服装零售商在中国的采购行动和计划.本刊记者在该公司董事长兼首席执行官瓦尼萨·卡斯塔格娜(Vanessa Castagna)与中国纺织工业协会会长杜钰洲会见之际,就杰西潘尼经营状况、对中国纺织品服装供应商的看法,尤其是配额取消后中美纺织品贸易形势等进行了深入采访.     

1917–2017: The Geopolitical Legacy of the Russian Revolution

The essays collected in this forum discuss the geopolitical legacy of the Russian Revolution of 1917, one of the most momentous political events of the twentieth century. From a range of different academic disciplines and perspectives, the authors consider how the profound transformations in society and politics were refracted through space and geography, and how enduring these refractions proved to be. The authors focus on three themes that have been dominant in Russian affairs over the past century: 1)the problem of center-periphery relations, 2)the civilizational dynamics of Russia’s self-identification in relation to Europe and to Asia, and 3)the geopolitics of national identity.     

Measurement of patient-reported outcomes. 1: The search for the Holy Grail

Abstract

Patient-reported outcome measures (PROMs) are used to collect information directly from patients. They may cover several different types of outcomes ranging from symptoms, functioning, utility, satisfaction, through to quality-of-life (QoL). They generally consist of self-completed questionnaires that can be administered by means of hard copies or in a range of electronic formats. PROMs vary considerably in terms of the constructs they assess, the care with which they are developed, and their scientific quality. However, none of the PROMs available approach the quality of measurement achieved by measures/instruments used in physics. PROs are examples of latent variables. These are not directly observable, but can be inferred from, for example, responses to a questionnaire. The only measure of a latent variable that approaches the quality of measurement achieved by the physical sciences is the Lexile Framework for Reading. This framework is based on a construct theory that grew out of an analysis of several available reading measures. A specification equation was generated that was able to link the construct theory to scores obtained with the Lexile measure. A fundamental requirement of this quality of measurement is that the data collected with the model fit Rasch Measurement Theory (RMT). It is argued that PROM developers should aspire to match this level of measurement sophistication if their instruments are to provide valid insights into the impacts of disease and its treatment.