Results 151 to 160 of about 44,033 (313)

A Paradigm Shift from Production Function to Production Copula: Statistical Description of Production Activity of Firms [PDF]

, 2009
Hiroshi Iyetomi, Hisayuki Aoyama, Yoshi Fujiwara, Yuichi Ikeda, Wataru Souma   +4 more
openalex   +1 more source

Ossification of the cranium of Inpaichthys kerri (Characiformes: Acestrorhamphidae) with discussion of paedomorphic traits in the genus

Journal of Anatomy, EarlyView.
In this study, we present a detailed description of the cranial development of Inpaichthys kerri (Characiformes: Acestrorhamphidae), highlighting important topics such as pedomorphic characters and their relationship with ontogeny and phylogeny, as well as ossification sequences unique to the species. Abstract The study of development provides valuable
Yasmim De Santana Santos, Manoela M. F. Marinho   +1 more
wiley   +1 more source

Analysis of Contagion in Financial Markets Based on the Gradient Measurement of the Growth in Financial Markets and Conditional Copula Functions

, 2013
Rafał Siedlecki, Daniel Papla
openalex   +1 more source

Situated Attention and Strategic Leadership Interfaces: The Role of CEO Humility and Digital Transformation Urgency for Corporate Venture Capital Investments

Journal of Management Studies, EarlyView.
Abstract Integrating the attention‐based view with the strategic leadership interfaces perspective, we propose a theoretical model of situational urgency mechanisms influencing the allocation of CEOs' attention towards responsive actions. Specifically, we theorize upon the role of humility, which leads CEOs towards embracing interfaces and makes them ...
Petrit Ademi, Philipp Schade, Monika C. Schuhmacher   +2 more
wiley   +1 more source

Improved Frechet bounds and model-free pricing of multi-asset options

, 2011
Improved bounds on the copula of a bivariate random vector are computed when partial information is available, such as the values of the copula on a given subset of $[0,1]^2$, or the value of a functional of the copula, monotone with respect to the ...
Tankov, Peter
core  

On the Error Rate Comparison of the Quadratic Discriminant Function, Euclidean Distance Classifier, Fisher’s Linear Discriminant Function and the Vine Copulas

, 2018
A. Nanthakumar
openalex   +2 more sources

Ripples in the Pond: Product Portfolio Reconfiguration and Dynamism in the Competitive Environment

Journal of Management Studies, EarlyView.
Abstract The management literature often overlooks how firms can alter the competitive landscape without introducing groundbreaking changes or innovations. Applying the awareness, motivation, and capability framework from competitive dynamics, we posit that as a firm intensifies its product portfolio reconfiguration, its rivals become increasingly ...
Christopher Jung, Mark R. Mallon, Stav Fainshmidt   +2 more
wiley   +1 more source

Distribution of the Joint Survival Function of an Archimedean Copula [PDF]

Magloire Loudegui Djimdou, Yogendra P. Chaubey, Arusharka Sen   +2 more
openalex   +1 more source

Markov Determinantal Point Process for Dynamic Random Sets

Journal of Time Series Analysis, EarlyView.
ABSTRACT The Law of Determinantal Point Process (LDPP) is a flexible parametric family of distributions over random sets defined on a finite state space, or equivalently over multivariate binary variables. The aim of this paper is to introduce Markov processes of random sets within the LDPP framework. We show that, when the pairwise distribution of two
Christian Gouriéroux, Yang Lu
wiley   +1 more source

Multiple Changepoint Detection for Non‐Gaussian Time Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT This article combines methods from existing techniques to identify multiple changepoints in non‐Gaussian autocorrelated time series. A transformation is used to convert a Gaussian series into a non‐Gaussian series, enabling penalized likelihood methods to handle non‐Gaussian scenarios.
Robert Lund, Thomas J. Fisher, Norou Diawara, Michael Wehner   +3 more
wiley   +1 more source