ŠIMKO, Fedor; PŠENÁK, Peter. Protective Hypothetical Investment Portfolios During the COVID-19 Recession: Comparison with Superinvestors. Ekonomický časopis/Journal of Economics, [S. l.], v. 74, n. 1-2, p. 26–47, 2026. DOI: 10.31577/ekoncas.2026.01-02.02. Disponível em: https://journals.savba.sk/index.php/ekonomickycasopis/article/view/6777. Acesso em: 11 jul. 2026.