What are the main causes of business failures?

Thank you. Some reasons of business failure are given below.

Thanks for invitation,

Preciously, the main reason of of business failures is " Bad Management".  

there are certain reasons behind any business failure which can be as following, 

availability

Financial Background of Company

Market intelligence, 

Product Pricing

Improper sales team, 

environmental factors 

political factors 

lack of market relationship

Communication gap.