Decoupling between the Energy and Semiconductor Sectors during the Pandemic: New Evidence from Wavelet Analysis
Mariya Gubareva, Zaghum Umar, Tamara Teplova, Dang K. Tran
Emerging Markets Finance And Trade, vol. 59, 2023, p. 1707-1719.

Emerging Market Debt and the COVID-19 Pandemic: A Time-Frequency Analysis of Spreads and Total Returns Dynamics
Mariya Gubareva, Zaghum Umar
International Journal Of Finance And Economics, vol. 28, 2023, p. 112-126.

Return and Volatility Transmission between Emerging Markets and US Debt Throughout the Pandemic Crisis
Zaghum Umar, Youssef Manel, Yasir Riaz, Mariya Gubareva
Pacific Basin Finance Journal, vol. 67, 2021, p. .

The Impact of COVID-19 on Commodity Markets Volatility: Analyzing Time-Frequency Relations between Commodity Prices and Coronavirus Panic Levels
Zaghum Umar, Mariya Gubareva, Tamara Teplova
Resources Policy, vol. 73, 2021, p. .

The Relationship between the COVID-19 Media Coverage and the Environmental, Social and Governance Leaders Equity Volatility: A Time-Frequency Wavelet Analysis
Zaghum Umar, Mariya Gubareva
Applied Economics, vol. 53, 2021, p. 3193-3206.