1,354,289 research outputs found
Mergers and acquisitions in the financial industry: A bibliometric review and future research directions
No full textThe growing application of bibliometric reviews in Finance, as well as the ongoing consolidation processes across firms and countries, motivated this study on mergers and acquisitions (M&A) in the Financial Industry. From a starting count of around 4500 papers, we refine our database accordingly to keywords and journal quality, reviewing a final sample of 174 papers. By combining bibliometric and content analysis, we identify leading journals, countries, institutions, authors, articles, and related research questions that mostly contributed to this field. Moreover, we provide a keyword/cartographic analysis identifying five leading research streams and their evolution over time, that we extensively discuss. Finally, we summarize the main questions proposed by the literature as a suggestion for future research
Chenendopora piaskovskii Pisera 2000, n. sp.
No full text<i>Chenendopora piaskovskii</i> n. sp. <p>(Figs 2 E-H; 5)</p> <p>MATERIAL. — Holotype, fragmentary specimen NHM ZN1; paratype, fragmentary specimens NHM ZN11. ETYMOLOGY. — To honour the discoverer of this sponge fauna, geologist B. V. Piaskovsky.</p> <p>DIAGNOSIS. — Plate-like or flabellate tetracladine sponge with small tuberculated tetraclones in the choanosomal skeleton and dermalia as small phyllotriaenes with pointed clad tips. Upper surface with numerous large canal openings running obliquely into the wall. Lower surface smooth with much smaller evenly distributed canal openings.</p> <p>DESCRIPTION</p> <p>These are fragments of plate-like or leaf-shaped sponge up to 10 × 6 cm large and with wall about 1 cm thick that thins toward the edge. Lower side more or less smooth with traces of concentric growth and irregular narrow elevations. It displays irregularly distributed rounded openings about 0.24-0.30 mm in diameter, which are loosely spaced. The upper side, which is slightly eroded in all specimens, displays large canal openings 0.6-0.8 mm in diameter, and canals which run close to the surface to enter after some distance obliquely the wall. These canals and their openings are arranged in irregular vertical (radial) series giving an appearance of irregular radial striation. Skeleton very dense, composed of stout and strongly tuberculated tetraclones 400- 700 µm in size (average 600 µm). These tubercles in most cases are oval or elongated. Dermal skeleton preserved only in few places, composed of very small and poorly branched phyllotriaenes with pointed tips of clads, and cladomes 270- 360 µm in diametre. Rhabd short, conical.</p> <p>REMARKS</p> <p> These are, most probably, the specimens which were erroneously considered by Oakley (1942) as representatives of the genus <i>Corallistes</i>. This is the first report of the Cretaceous genus <i>Chenendopora</i> from the Tertiary. The new species differs from other species of this genus in more regular and differently sculptured desmas, in the presence of dermalia (unknown in the Cretaceous forms) and in being rather leaf or plate-shaped than conical or cylindrical as other forms.</p>Published as part of <i>Pisera, Andrzej, 2000, New species of lithistid sponges from the Paleogene of the Ukraine, pp. 285-298 in Zoosystema 22 (2)</i> on page 293, DOI: <a href="http://zenodo.org/record/5400520">10.5281/zenodo.5400520</a>
A new Mediterranean ‘lithistid’ sponge, Aciculites mediterranea sp. n. (Porifera, Demospongiae) from a dark marine cave in Sardinia
No full textAre ESG indexes a safe-haven or hedging asset? Evidence from the COVID-19 pandemic in China
No full textPurpose The aim of the paper is to investigate the risk-hedging and/or safe haven properties of environmental, social and governance (ESG) index during the COVID-19 in China. Design/methodology/approach This paper employs the DCC, VCC, CCC as well as Newey-West estimator regression. Findings The findings provide empirical evidence of the risk hedging properties of ESG indexes as well as of the environmental, social and governance thematic indexes during the outbreak of the COVID-19 crisis. The results also support the superior risk hedging properties of ESG indexes over cryptocurrency. However, the authors do not find any safe haven properties of ESG, Bitcoin, gold and West Texas Intermediate (WTI). Practical implications The paper offers therefore, practical policy implications for asset managers, central bankers and investors suggesting the pandemic risk-hedging opportunities of ESG investments. Originality/value The study represents one of the first empirical contributions examining safe-haven and hedging properties of ESG indexes compared to traditional and innovative safe haven assets, during the eruption of the COVID-19 crisis
Neophrissospongia Pisera and Levi 2002
No full textGenus <i>Neophrissospongia</i> Pisera and Lévi, 2002 <p> <b>Definition.</b> Irregular cup-shaped to contorted lamellate masses, ear-shaped or massive clavate growth forms. Ectosomal spicules are dichotriaenes bearing on the upper cladome surface strong spines and/or tubercles; choanosomal desmas are dicranoclones; microscleres are massive streptasters/amphiasters, acanthose microtylostyles, <b>microstyles, microstrongyles and rarely strongyles</b>. (modified from Pisera & Vacelet 2011; our amendments in boldface).</p> <p> <b>Remarks.</b> The definition has been modified from that given by Pisera & Vacelet (2011) to include microstyles, microstrongyles and strongyles found in some specimens of <i>Neophrissospongia microstylifera</i> (Lévi & Lévi, 1983), <i>Neophrissospongia radjae</i> Pisera & Vacelet, 2011, <i>Neophrissospongia nolitangere</i> (Schmidt, 1870), <i>Neophrissospongia endoumensis</i> Pisera & Vacelet, 2011 and <i>Neophrissospongia jorgeorum</i> <b>sp. nov.</b></p> <p> <b>Type species.</b> <i>Corallistes nolitangere</i> Schmidt, 1870 (type by original designation).</p>Published as part of <i>Dias, Alan, Kelly, Michelle & Pinheiro, Ulisses, 2023, Two news species of Corallistidae (Porifera; Demospongiae; Tetractinellida) with a first record of Awhiowhio from the Atlantic, pp. 182-192 in Zootaxa 5277 (1)</i> on page 184, DOI: 10.11646/zootaxa.5277.1.9, <a href="http://zenodo.org/record/7893186">http://zenodo.org/record/7893186</a>
Discodermia du Bocage 1870
No full textGenus <i>Discodermia</i> du Bocage, 1870 <p> <i>Discodermia</i> du Bocage, 1870: 15, pl. 11: 1.</p> <p> TYPE SPECIES. — <i>Dactylocalyx polydiscus</i> Bowerbank, 1869 by subsequent designation (Pisera F Lévi 2002d).</p> <p>DEFINITION. — Exclusively discotriaenes as ectosomal spicules and acanthoxeas and acanthorhabds as microscleres (Pisera F Lévi 2002d).</p>Published as part of <i>Schlacher-Hoenlinger, Monika A., Pisera, Andrzej & Hooper, John N. A., 2005, Deep-sea " lithistid " assemblages from the Norfolk Ridge (New Caledonia), with description of seven new species and a new genus (Porifera, Demospongiae), pp. 649-698 in Zoosystema 27 (4)</i> on page 681, DOI: <a href="http://zenodo.org/record/5393958">10.5281/zenodo.5393958</a>
Hidden effects of Brexit
No full textThis paper investigates the hidden effects for UK firms of the 2016 choice to leave the European
Union (EU). By applying a difference-in-difference (DID) methodology to a sample of 1166 firmyear
observations from 2012 to 2018, we observe a decrease in UK firms’ environmental and
social performance compared to those headquartered in the EU. Our evidence also stresses the
importance of the adoption of the Global Reporting Initiative (GRI) standards in reducing the
negative impact of Brexit on sustainability performance. Moreover, supported by the stakeholder
theory, we confirm the existence of an ESG ‘insurance mechanism’ reducing the detrimental effect
of Brexit on UK firms’ market risks. Overall, our results uncover the social responsibility effects of
exiting the EU’s stakeholder-oriented regulatory approach emerge in terms of a greater exposure
of UK firms to future financial risk
Scleritoderma Sollas 1888
No full textGenus <i>Scleritoderma</i> Sollas, 1888 <p> <i>Scleritoderma</i> Sollas, 1888: 316, pl. 35: 26-50.</p> <p> TYPE SPECIES. — <i>Scleritoderma flabelliforme</i> Sollas, 1888 by subsequent designation (Pisera F Lévi 2 002a).</p> <p>DEFINITION. — Sponges with spinose rhizoclone desmas and ectosomal acanthostrongyles/rhabds forming a dense tangential layer on the surface; microscleres are sigmaspires (Pisera F Lévi 2002a).</p>Published as part of <i>Schlacher-Hoenlinger, Monika A., Pisera, Andrzej & Hooper, John N. A., 2005, Deep-sea " lithistid " assemblages from the Norfolk Ridge (New Caledonia), with description of seven new species and a new genus (Porifera, Demospongiae), pp. 649-698 in Zoosystema 27 (4)</i> on page 655, DOI: <a href="http://zenodo.org/record/5393958">10.5281/zenodo.5393958</a>
Gendered language and board diversity: Evidence from European banks
No full textBased on a sample of EU banks covering the period 2007 to 2021, I explore the impact of gendered language on bank board diversity policies. I find that gen-dered language negatively affects banks' gender diversity practices, especially after the passage of board reforms. Further, I find that rule of law and government efficiency explain the relationship, suggesting that these are useful mechanisms to reduce the negative effect of language gender-marking orientation on banks' gender diversity practices. However, results do not show a statistically significant effect of board gender diversity on riskiness of banks operating in countries with higher language gender orientation. My study provides a timely contribution to the literature by filling the gap regarding the importance of language gender-marking orientation in explaining banks' diversity practices and suggesting that regulators and institutions should take stronger actions aimed at reducing such crosscountry heterogeneity. It also provides useful insights for EU regulators following the passage of the mandatory "Women on Boards" Directive in 2022
The sponge genus Ephydatia from the high-latitude middle Eocene: environmental and evolutionary significance
No full textThe freshwater sponge species Ephydatia cf. facunda Weltner, 1895 (Spongillida, Spongillidae) is reported for the first time as a fossil from middle Eocene lake sediments of the Giraffe kimberlite maar in northern Canada. The sponge is represented by birotule gemmuloscleres as well as oxea megascleres. Today, E. facunda inhabits warm-water bodies, so its presence in the Giraffe locality provides evidence of a warm climate at high latitudes during the middle Eocene. The morphological similarity of the birotules to modern conspecific forms suggests protracted morphological stasis, comparable to that reported for other siliceous microfossils from the same localityThe freshwater sponge species Ephydatia cf.
facunda Weltner, 1895 (Spongillida, Spongillidae) is
reported for the first time as a fossil from middle Eocene
lake sediments of the Giraffe kimberlite maar in northern
Canada. The sponge is represented by birotule gemmuloscleres
as well as oxea megascleres. Today, E. facunda
inhabits warm-water bodies, so its presence in the Giraffe
locality provides evidence of a warm climate at high latitudes
during the middle Eocene. The morphological similarity
of the birotules to modern conspecific forms suggests
protracted morphological stasis, comparable to that reported
for other siliceous microfossils from the same locality
- …
