COVID-19 COVID-19 pandemic Historia Markow switching regression OPEC Physics Research & information: general Tártaros United States alternative energy carbon dioxide emissions changes in energetic balance due to COVID-19 companies in the Transport-Shipping-Logistics Sector competences consumer decision making consumers preferences corruption countries of Central and Eastern Europe countries of Western Europe crude price cultural factors decarbonizing transport delay discounting development e-mobility economic effects of the pandemic economic factors economic situation economic uncertainty efficiency