This study empirically analyzed the effect of entrepreneurial attitude as a cognitive factor on starting a business using 2002~20222 survey data from the Global Entrepreneurship Monitor (GEM). Our panel fixed effects results show that, being compared to the effect of cognitive factors in OECD member countries, in Korea, the proportion of adults who recognize entrepreneurial opportunities or capabilities needed to start a business or fear of failure is relatively higher, the proportion of female entrepreneurs is relatively higher. On the other hand, higher proportion of adults with the intention to start a business results in lower proportion of female entrepreneurs. These results indicate that in order to revitalize the economy in response to low birth rate and aging trends, female entrepreneurship can be more active if an environment is created to help recognize entrepreneurship opportunities or strengthen the capabilities such as knowledge, skills, and experience necessary for starting a business.