中小型企业：非正规安全网

World cities are facing greater exclusion and marginalization. A recent research study has shown that it is not the large multinational companies, but the small and medium enterprises, and increasingly the micro-businesses,which succeed in providing the much needed employment. Regardless of their social level, a large portion of the population in developing countries has turned to micro-businesses in search of survival. The degree of vulnerability of micro-businesses pushes them to seek out the informal sector, which over time becomes their main obstacle to growth. Therefore, the idea of viewing the "informal city" as an opportunity to solve the problem of structural poverty, rather than a problem or a threat to be eradicated, is significant for building genuine and truly "global" cities.