The role of segmentation and investor recognition through the lens of cross-listing activity∗ Francesca Carrieri†, Xavier Mouchette‡, Aline Muller§ We focus on the price effects occurring around cross-listing and research the impact of the sequencing of cross-listing, defined as the cumulative number of companies having an active cross-listing among more than 1,800 firms from 41 countries over three decades. We examine whether the segmentation hypothesis is a relevant driver of price effects, whether the improvement in the firm information subsumes these effects, and to what extent both channels are affected by the cross-listing activity from the home country of the underlying security. Controlling for home-country governance level and firm-specific liquidity, we find that support for the segmentation hypothesis is statistically stronger for Emerging Market companies listing outside US markets while the improvement in the firm’s information environment is the most important driver of the positive price effects for companies cross-listed on US hosts. We also find that cross-listing activity prior to

splitting, a factor of 10 longer than the phase diffusion time expected for a coherent state for our experimental con-ditions. The enhanced coherence time is attributed to number squeezing of the initial

quality assessment using the risk of bias instrument was conducted independently and in duplicate by two authors. Dichotomous data (incidence of diarrhea, adverse events) were combined using a pooled relative risk and risk difference (adverse events), and continuous data (mean duration of diarrhea, mean

Ultracold atoms in optical lattices provide a highly control-lable environment for the clean experimental realization of various model Hamiltonians from condensed matter and statistical physics. For example, the two-component Bose-Hubbard model, which re-duces to an anisotropic spin-1/2 Heisenberg

The spindle morphologies of control and zinc-insufficient oocytes were further compared at key steps in meiotic maturation to determine the precise time when these defects occurred. Germinal vesicle breakdown, as defined by the absence of a defined nucleus, proceeded normally whether TPEN was absent

' diet with either phosphate minerals or commercially produced phytase, and less phosphorus is lost in the manure. Enviropig would reduce feed costs because farmers would not need to purchase feed including the phytase, and it also would reduce the potential of water pollution since the Enviropig

Anne SABOURIN Mélanges bayésiens de modèles d'extrêmes multivariés, Application à la prédétermination régionale des crues avec données incomplètes. Sous la direction de:

In these lectures I review some basic examples of how the concepts of universality and scaling can be used to study aspects of the chiral and the deconfinement transition, if not in QCD directly but in QCD-like theories. As an example for flavor dynamics I discuss a quark-hadron model to describe the phase diagram of two-color QCD with the functional renormalization group. Universal aspects of deconfinement are illustrated mainly in the 2 + 1 dimensional SU(N) gauge theories with second order transition where many exact results from spin models can be exploited.

Abstract. We review theoretical models of individual motility as well as collective dynamics and pattern formation of active particles. We focus on simple models of active dynamics with a particular emphasis on nonlinear and stochastic dynamics of such self-propelled entities in the framework of statistical mechanics. Examples of such active units in complex physico-chemical and biological systems are chemically pow-ered nano-rods, localized patterns in reaction-diffusion system, motile cells or macroscopic animals. Based on the description of individual motion of point-like active particles by stochastic differential equations, we discuss different velocity-dependent friction functions, the impact of various types of fluctuations and calculate characteristic observ-ables such as stationary velocity distributions or diffusion coefficients. Finally, we consider not only the free and confined individual active dynamics but also different types of interaction between active par-ticles. The resulting collective dynamical behavior of large assemblies and aggregates of active units is discussed and an overview over some recent results on spatiotemporal pattern formation in such systems is given. 1

Corporate Governance determinants of voluntary disclosure and its effects on information asymmetry: an analysis for Iberian Peninsula listed companies.