Research on Risk-decision Mechanism of Start-up Enterprises Based on Social Network Evolution

This paper reveals the evolutionary forms at various levels of social network of start-LIP enterprises, which are categorized into the following four forms: allotropy(social network of start-LIP enterprises with identical element and structure but varied individual property), isomer(social network of start-Lip enterprises with identical element but varied structure and property), isopropyl molecular formula and isomorphism(social network of start-up enterprises with similar structure and property but varied element), isopropyl molecular formula and, heterogeneous(social network of start-up enterprises with varied element, structure and property). On this basis the paper explores the risk decision-making mechanism of start-Lip enterprises in different evolutionary forms.