Bolek, Monika; Gniadkowska‑Szymańska, Agata; … - In: Comparative economic research : Central and Eastern Europe 26 (2023) 2, pp. 129-148
This paper analyzes market efficiency (EMH) with the day-of-the-week effect and the changes that might appear after the outbreak of the COVID-19 pandemic, based on the example of the OMX Exchange and its indices. Before the pandemic, only the OMX Baltic All‑share index was efficient; during...
