Šimko, F. and Pšenák, P. 2026. Protective Hypothetical Investment Portfolios During the COVID-19 Recession: Comparison with Superinvestors. Ekonomický časopis/Journal of Economics. 74, 1-2 (Jun. 2026), 26–47. DOI:https://doi.org/10.31577/ekoncas.2026.01-02.02.