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Abstract: Mediation analysis is crucial for diagnosing indirect causal relations in many scientific fields. However, mediation analysis of nominal variables requires examining and comparing multiple ...

Copyright © 2025 Insider Inc and finanzen.net GmbH (Imprint). All rights reserved. Registration on or use of this site constitutes acceptance of our Terms of Service ...

This paper develops a procedure for uncovering the common cyclical factors that drive a mix of stationary and nonstationary variables. The method does not require knowing which variables are ...

ABSTRACT: Multicollinearity in factor analysis has negative effects, including unreliable factor structure, inconsistent loadings, inflated standard errors, reduced discriminant validity, and ...

A nominal variable is a type of variable used in statistics and research that represents categories without any quantitative value or inherent order. A nominal variable is a categorical variable that ...

The classical dichotomy is a fundamental concept in macroeconomics that suggests the separation of real and nominal variables in an economy. In economic theory, the classical dichotomy is the idea ...

Abstract: Principal component analysis (PCA) is a dimensionality reduction technique used in most fields of science and engineering. It aims to find linear combinations of the input variables that ...

Principal Financial Group ® today announced the launch of new buffer fund investment options within its variable annuity business aimed at helping customers balance the need to build and protect ...