“…Evidence presented in this paper could be of benefit to policy-makers: our results indicate that psychological bias of overconfidence could be harming investors' wealth, which in turn can have negative macroeconomic consequences and harm sustainable economic development (Dubauskas, 2016;Kulišauskas & Galinienė, 2015;Laužikas & Krasauskas, 2013;Peker, Tvaronavičienė, & Aktan, 2014;Stasytytė, 2015;Tvaronavičienė, 2014). Therefore, we suggest that governments should invest in increasing individual financial literacy, which will help to mitigate the impact of overconfidence on investment decisions and to achieve sustainable management of individual finances (Ciemleja, Lace, & Titko, 2014;Dubauskas, 2016;Kalyugina, Strielkowski, Ushvitsky, & Astachova, 2015;Njaramba, Chigeza, & Whitehouse, 2015).…”