This paper uses the Global Entrepreneurship Monitor data of approximately 200,000 surveys conducted on industry experts and general population to examine factors that have a significant impact on high growth Total Early-Stage Entrepreneurial Activity (TEA), with a focus on developed countries with GDP per capita of USD 20,000 or above. The results suggest that expert opinion has a significant positive correlation with high growth TEA in developed countries, while only the public sentiment has a meaningful relationship with high growth TEA in developing countries. Among the specific categories of the survey, access to funding and government regulations and support had the largest impact.