Predicting Skytrax’s Official World Airline Star ratings from customer reviews [PDF]
Skytrax audits and ranks airlines internationally in its yearly ‘Official World Airline Star Ranking’. Unfortunately, its activity is severely restricted, at most covering just 30% of those airlines listed as open for review by passengers in its ...
Gilbey, Andrew, Pérezgonzález, Jose D.
core
A convenient regression formula for predicting Skytrax’s Official World Airport Star ratings [PDF]
Skytrax audits and ranks airports internationally in its yearly ‘Official World Airport Star Ranking’. Unfortunately, its activity is severely restricted, at most covering just 3% of those airports listed by Skytrax as open to review by passengers in ...
Gilbey, Andrew, Pérezgonzález, Jose D.
core
Testing gravity on large scales. The skewness of the galaxy distribution at z~1
We study the evolution of the low-order moments of the galaxy overdensity distribution over the redshift interval 0 ...
Abbas, U.+56 more
core +1 more source
Herd behaviour in Malaysian capital market: An empirical analysis [PDF]
This study examines the existence of herd behavior among foreign investors in the Malaysian capital market. In methodology, the study analyzes the herd behavior by estimating vector error correction (VECM) model of FPI inflows as well as FPI outflows ...
Duasa, Jarita, Kassim, Salina
core +1 more source
European Securitisation : a GARCH model of CDO, MBS and Pfandbrief spreads [PDF]
Asset-backed securitisation (ABS) is an asset funding technique that involves the issuance of structured claims on the cash flow performance of a designated pool of underlying receivables.
Jobst, Andreas A.
core
BackgroundLoneliness is a significant issue among older Asian Americans, exacerbated by the COVID-19 pandemic. Older age, lower income, limited education, and immigrant status heighten loneliness risk.
Pauline DeLange Martinez+4 more
doaj +1 more source
Examining Attentional Control and Processing Speed Deficits as Underlying Mechanisms of Neuropsychological Impairment in Schizophrenia [PDF]
Neuropsychological impairment is a key characteristic of schizophrenia (SZ), but its cognitive profile and underlying information processing mechanisms are not yet well understood.
Forte, Mayte
core +1 more source
This paper introduces a new method to estimate the population variance of a study variable in stratified successive sampling over two occasions, while accounting for random non-response.
M.K. Pandey+4 more
doaj
Shrinkage MMSE estimators of covariances beyond the zero-mean and stationary variance assumptions [PDF]
We tackle covariance estimation in low-sample scenarios, employing a structured covariance matrix with shrinkage methods. These involve convexly combining a low-bias/high-variance empirical estimate with a biased regularization estimator, striking a bias-variance trade-off.
arxiv
Conditioning Information and Variance Bounds on Pricing Kernels with Higher-Order Moments: Theory and Evidence [PDF]
The author develops a strategy for utilizing higher moments and conditioning information efficiently, and hence improves on the variance bounds computed by Hansen and Jagannathan (1991, the HJ bound) and Gallant, Hansen, and Tauchen (1990, the GHT bound).
Fousseni Chabi-Yo
core