Micro entrepreneurs are small business owners who typically operate on a small scale, with limited resources and a small number of employees. They often start their businesses with personal savings or loans and focus on serving local markets. Mega entrepreneurs, on the other hand, are large-scale business owners who operate on a much larger scale, with significant resources and a large number of employees. They often have access to substantial capital and may operate on a national or even global level. Mega entrepreneurs typically have a larger impact on the economy and may have more influence and power in the business world.