Results 31 to 40 of about 4,109,960 (295)

Impairment losses: causes and impacts [PDF]

open access: yes, 2016
Purpose - To analyze recognition of impairment losses in tangible and intangible assets, and their relevance to investors in companies listed in the Lisbon and Madrid Stock Exchange (2007-2011).Methodology - Quantitative analysis of a panel data sample ...
Fernandes, Joaquim Santana   +3 more
core   +3 more sources

External validity & non-probability sampling

open access: yesIndian Journal of Medical Research, 2015
Sir, Apropos of the article on determinants of Indian physicians satisfaction and dissatisfaction from their job published recently1, the authors deserve credit for their efforts. As the title and the conclusions suggest, the aim was to study the job satisfaction and dissatisfaction levels among Indian physicians and compare it with levels across ...
openaire   +2 more sources

The return of non-probability sample: the electoral polls at the time of internet and social media

open access: yesQuality & Quantity: International Journal of Methodology
For the past 80 years survey researchers have used a probability sampling framework. Probability samples have a well-defined set of quality criteria that have been organized around the concept of Total Survey Error (TSE).
Giovanni Di Franco
semanticscholar   +1 more source

Implicitly Localized MCMC Sampler to Cope With Non-local/Non-linear Data Constraints in Large-Size Inverse Problems

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Many practical applications involve the resolution of large-size inverse problems, without providing more than a moderate-size sample to describe the prior probability distribution.
Jean-Michel Brankart
doaj   +1 more source

Does corporate R&D investment support to decrease of default probability of Asian firms?

open access: yesBorsa Istanbul Review, 2019
This paper examines the nature of the relationship between corporate R&D investment and the probability of default. Existing evidence on the topic is varied and often conflicting due to its complexity.
Victoria Cherkasova, Alena Kurlyanova
doaj   +1 more source

Path probability distribution of stochastic motion of non dissipative systems: a classical analog of Feynman factor of path integral

open access: yes, 2013
We investigate, by numerical simulation, the path probability of non dissipative mechanical systems undergoing stochastic motion. The aim is to search for the relationship between this probability and the usual mechanical action.
Bi, W. P.   +6 more
core   +1 more source

Calibrating non‐probability surveys to estimated control totals using LASSO, with an application to political polling

open access: yesJournal of the Royal Statistical Society: Series C (Applied Statistics), 2018
Declining response rates and increasing costs have led to greater use of non‐probability samples in election polling. But non‐probability samples may suffer from selection bias due to differential access, degrees of interest and other factors.
J. Chen, R. Valliant, M. Elliott
semanticscholar   +1 more source

Information Loss Due to the Data Reduction of Sample Data from Discrete Distributions

open access: yesData, 2020
In this paper, we study the information lost when a real-valued statistic is used to reduce or summarize sample data from a discrete random variable with a one-dimensional parameter. We compare the probability that a random sample gives a particular data
Maryam Moghimi, Herbert W. Corley
doaj   +1 more source

Does student proactivity guarantee positive academic results? [PDF]

open access: yes, 2018
This paper analyzes the impact of students’ proactivity on academic performance based on a sample from students enrolled in an introductory course of Political Economy at the University of Seville (Spain) in three consecutive courses (2014–2015, 2015 ...
Cansino Muñoz-Repiso, José Manuel   +2 more
core   +2 more sources

Non-commutative probability and non-commutative processes

open access: yes, 2019
A probability space is a pair ($\mathcal{A},\phi $) where $\mathcal{A}$ is an algebra and $\phi $ a state on the algebra. In classical probability $\mathcal{A}$ is the algebra of linear combinations of indicator functions on the sample space and in ...
Mendes, R. Vilela
core   +1 more source

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