Can ESG Stocks Be a Safe Haven during Global Crises? Evidence from the COVID-19 Pandemic and the Russia-Ukraine War with Time-Frequency Wavelet Analysis

Abstract

In times of intense economic variability and social turbulence worldwide, this paper aims to examine the existence of transient correlations and interdependencies between the most important MSCI ESG indices worldwide and the most important commodities’ index, economic uncertainty, natural gas, gold, and VIX, in a geographical and social context during two recent crises: the COVID-19 pandemic and the energy crisis due to the Ukrainian war. Using daily data from 3 January 2020 and extending until 23 August 2022, this study applies a wavelet coherence approach to analyze time series co-movements, in order to emphasize all possible combinations’ correlations and achieve more accurate outcomes at any given time and frequency band simultaneously and spontaneously. The results show robust coherence between different geographical areas, time, and frequency bands, indicating both positive and negative correlations with most of the combined ESG indices and other economic indicators. The study suggests that stock indices of leading ESG companies in North America and Europe constitute a safe investment haven during major upheavals and crises, providing a way for investors to manage risk and generate positive returns while contributing to economic sustainability.