On PPP, Unit Roots and Panels [PDF]
This paper re-assesses the panel (unit root test) evidence for PPP on four monthly data sets. We discuss and illustrate that commonly-used first generation panel unit root tests are inappropriate for PPP analysis since they are constructed for cross ...
Wagner, Martin
core
Post‐COVID Fatigue Is Associated With Reduced Cortical Thickness After Hospitalization
ABSTRACT Objective Neuropsychiatric symptoms are among the most prevalent sequelae of COVID‐19, particularly among hospitalized patients. Recent research has identified volumetric brain changes associated with COVID‐19. However, it currently remains poorly understood how brain changes relate to post‐COVID fatigue and cognitive deficits.
Tim J. Hartung +190 more
wiley +1 more source
Unit Root Testing and Estimation in Nonlinear ESTAR Models with Normal and Non-Normal Errors. [PDF]
Khalil U +6 more
europepmc +1 more source
The Relationship Between Wages and Productivity: TAR Unit Root and TAR Cointegration Approach [PDF]
We analyzed the relationship between wages and productivity in 1990 - 2007 period in Turkey. At the first stage we followed the traditional unit root tests and apply the analysis followed by unit root test procedure proposed by Caner and Hansen (2001 ...
Alp, Aykaç, Bildirici, Melike
core
ABSTRACT Objective This study aimed to systematically observe the clinical manifestations, immune cell subsets, and dynamic changes in serological indicators in patients with myasthenia gravis (MG) before and after efgartigimod (EFG) treatment. Methods We analyzed the baseline data, laboratory parameters, and lymphocyte subset proportions in MG ...
Tiancheng Luo +9 more
wiley +1 more source
Purchasing Power Parity (PPP) in a Transition Economy - Cambodia: Empirical Evidence from Bilateral Exchange Rates [PDF]
This study contributes to the existing literature by examining the validity of PPP hypothesis for Cambodia. The standard unit root tests (ADF and PP) and the panel unit root tests fail to support PPP hypothesis for the nine Cambodia’s trading partners ...
Tuck Cheong Tang, Venus Khim-Sen Liew
core
Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz +3 more
wiley +1 more source
Unit Root Model Selection [PDF]
Some limit properties for information based model selection criteria are given in the context of unit root evaluation and various assumptions about initial conditions. Allowing for a nonparametric short memory component, standard information criteria are
Peter C.B. Phillips
core
Discovery and Targeted Proteomic Studies Reveal Striatal Markers Validated for Huntington's Disease
ABSTRACT Objective Clinical trials for Huntington's disease (HD) enrolling persons before clinical motor diagnosis (CMD) lack validated biomarkers. This study aimed to conduct an unbiased discovery analysis and a targeted examination of proteomic biomarkers scrutinized by clinical validation. Methods Cerebrospinal fluid was obtained from PREDICT‐HD and
Daniel Chelsky +8 more
wiley +1 more source
Testing for stationary of housing prices in China: An examination using efficient unit root tests. [PDF]
Bian N, Chen Y.
europepmc +1 more source

