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This paper aims to provide an analysis of securities class action filings in 2017 along with related trends over time and a comprehensive current view of the securities class action landscape.

The paper details 2017 securities class actions and related trends by measures including the number and size of filings; market capitalization losses; litigation likelihood for US versus non-US exchange-listed companies; status and outcomes of filings (settled, dismissed, continuing); core versus merger and acquisition filings; individual versus institutional investors as lead plaintiffs; and concentration of class action activity by industry sector, stock exchange and court circuit.

The number of federal securities class action lawsuits filed in 2017 reached a record high for the second straight year. The jump was spurred by a sharp increase in lawsuits targeting mergers and acquisitions. The 412 securities class action filings in 2017 represented a more than 50 per cent increase from the previous record of 271 filings in 2016.

This paper details analysis by legal and industry experts.

To provide an analysis of securities class action filings in 2015 along with related trends over time and a comprehensive current view of the securities class action landscape.

Details 2015 securities class actions and related trends in terms of the number and size of filings; market capitalization losses; the litigation exposure of IPOs; the classification of complaints; litigation likelihood for US exchange-listed companies; resolutions (settlements, dismissals or trial verdict outcomes); timing of dismissals and settlements; filing lags; filings against foreign issuers; number of mega filings; recent rulings related to class certification; and concentration of class action activity by industry sector, stock exchange and court circuit.

The number of filings in 2015 was the largest since 2008. The Disclosure Dollar Loss Index® (DDL Index®), the Maximum Dollar Loss Index® (MDL Index®) and the number of mega filings rose sharply in 2015 after declines in 2014. The Consumer Non-Cyclical sector had the most filings in 2015 while filings against companies in the Financial sector were below historical averages. Dismissal rates appear to be trending down. The median filing lag has never been shorter than in 2015. Filings against foreign issuers remain at high levels. Filings against S&P 500 companies remained below the historical average.

Detailed analysis by legal and industry experts.

AT the very outset of this paper it is necessary to make clear that it is not an attempt to compile an exhaustive bibliography of literature relating to special librarianship. Neither space nor time permit this. In fact, the references given can only claim to be a sample of the wealth of material on the subject and this paper is submitted in the hope that it will stimulate others to more scholarly efforts. Reference numbers throughout this paper refer to items in the ‘Select list of references to the literature of special librarianship’, section 2 onwards.

WHhat records do we keep for business purposes? In my opinion, far too many. If we re‐phrase the question, what records should we keep for business purposes, I am confident that the answer is, or should be, as few as possible. Alas, this precept is not generally followed in industry, with the result that a great deal of space which could be more productively employed is wasted, and much unnecessary labour is expended on the maintenance of records which are not essential to business.

The formulae used to price online databases have traditionally been comprised of three components: database connect time, per record charges and communications costs. Business databases available through Dialog make use of these three basic cost factors with the addition of user‐defined formats, report and special report formats, full text, and current awareness profiles. An informal survey was conducted by the author to compare the pricing formulae of six categories of business databases available through Dialog.

The purpose of this study is to provide a broad understanding of the pre-completion stage and subsequent abandonment of mergers and acquisitions (M&As).

A total of 117 peer-reviewed, English language articles published in scholarly journals were considered in the review. The approach includes a descriptive evaluation of the literature, coupled with content analysis. The paper uses both positivist and constructivist approaches to qualitative research. The analysis is conducted with the help of R programming and Gephi visualization software. The authors organize the work around the event of outcome/closure of deal proposal.

It is found that earlier studies sampled on domestic M&As in developed economies (DEs). However, the interest of scholars has increased in cross-border deals and emerging economies (EEs) in the last decade. Various factors interact and facilitate the completion/abandonment of good and bad deals. The authors find that complex non-linear relationships exist, and there is a need for studies with other classification techniques focusing on predictive accuracy.

The literature review is limited to articles available to the researcher using search terms related to M&A completion/termination. The databases accessed were: ProQuest, Scopus and Web of Science. However, backward snowballing was performed to avoid the omission of relevant articles.

The findings and subsequent discussions familiarize researchers and practitioners with an overview of research undertaken in the field of M&A abandonment. The authors find voids within the literature and suggest future research agendas.

Standard Industrial Classification (SIC) codes are a type of controlled vocabulary used by business searchers when searching for corporate and industry data. Two four‐digit versions of the SIC coding scheme are used on business databases available through Dialog. Some Dialog database producers have opted to create a variation of the codes for use in their products. With the impending eight‐digit SIC coding scheme from Dun and Bradstreet, it will become increasingly difficult for the Dialog searcher to know which version of the codes to use when searching a particular database. A survey of the use of SIC codes in business databases on Dialog was undertaken. This paper presents the findings of this survey.

Today's university students have now, and will have in the future, greater information needs than ever before. As end‐users, they will take the skills they learn and the knowledge about the resources used to fill those needs with them into the workplace and beyond. In an effort to provide undergraduates at the University of Maryland with these skills, the University of Maryland System (UMS) solicited proposals for projects to enhance undergraduate education. In July 1994, The Council of Library Directors was awarded three year funding for their proposal for implementation of access to 150 DIALOG Classroom Instruction Program (CIP) files, part of the online database service of Knight‐Ridder Information Inc., using the UMS online public access catalogue as a gateway to these files. The University of Maryland System consists of 13 academic institutions situated throughout the state of Maryland. This project is being implemented by four of those institutions, refecting differences in demographics, geography and academic disciplines. They include a large, urban research university; a suburban university with concentrations in science and engineering; an urban non‐traditional university of upper‐level undergraduates majoring in business and pre‐law; and a rural university with various majors, including education and business.

The stabilization of earthen blocks improves their mechanical strength and avoids adobe construction erosion due to rainwater. However, the stabilization affects the thermal properties of the earthen blocks, and thus their capacity to provide adequate thermal comfort to occupants. This article examines the influence of cement and geopolymer binders on thermal comfort in compressed earthen buildings in hot and arid climates.

The test cell is on the building platform in Burkina Faso. The building is made of compressed earth blocks (CEB) consisting of laterite, water and binder. The thermal models of the building were implemented in EnergyPlus v9.0.1 software. Empirical validation is used to check whether the model used for the thermal dynamic simulation can reproduce with accuracy the thermal behavior in a real situation. The adaptive thermal comfort model of ASHRAE 55–2010 was used to assess thermal comfort in long-term hot and dry tropical conditions.

The results show that the CEB buildings remain hot despite the use of cement or geopolymer binder. Indeed, with both cement and geopolymer binders, on a daily basis, 19 h and 15 h are uncomfortable during, respectively, the hot and cold seasons. An increase of 1% in cement content raises the comfort hours by 9.2 h during the hot season and 11.7 h during the cold season. Hence, the comfort time varies linearly with the cement content in the building material. Moreover, there is no linear relationship between comfort time and geopolymer rate.

Complementary work should also assess the influence of stabilization on building humidity levels. In fact, earthen materials are very sensitive to outdoor humidity and indoor humidity affects thermal comfort even if it is not taken into account in the ASHRAE adaptive thermal comfort model.

The present study will certainly contribute to a better valorization of clay potential in countries with similar climatic conditions.

The use of geopolymer binder is a suitable ecological option to replace the cement binder. It is important to mention that nighttime comfort can be increased through passive strategies such as natural ventilation.

Most CEB material stabilization analyses including cement and geopolymer ones were mostly investigated at the laboratory scale and less at the building scale. Also, the influence of the binder rate on the thermal performance of buildings made of cement and geopolymer has not yet been assessed. This paper fills this gap of knowledge by assessing the impact of cement and geopolymer binder rates on the thermal comfort of CEB dwellings.

This study examines the information content of firms’ operations-related disclosures (ORDs) and the importance of these disclosures as an information source to stock markets relative to other commonly examined sources of information. I find that ORDs constitute a large portion of corporate press releases. These disclosures are associated with significant stock price reactions and trading volume. The stock price reactions to ORDs are greater than the reactions to 10-K/Q reports and are of similar magnitudes to the reactions to 8-K filings. On average, ORDs explain variation in firms’ quarterly returns to a similar degree as management earnings forecasts and 10-K/Q reports for the full sample and to a greater degree for small firms and firms with lower earnings quality.