But according to the Global Entrepreneurship Monitor:
... economic growth is not driven by these “necessity” entrepreneurs, who decrease in number as the economy develops. The key to fostering growth is to support “opportunity” entrepreneurs, who choose to start new enterprises in response to market needs.Read this intriguing article, "Does Entrepreneurship Drive Economic Growth? - Megacities - Opportunities at Urban Edges" published by Forbes.
Related piece: "Do Entrepreneurs in the Developing World Fuel Economic Growth?"