The mathematic model of evaluation of enterprise activity

It is a general concerned by whole society that how long the firn can last. Investigating on enterprise's survival state, it research on the life table of enterprise based on the concept of life table in demographic. So as to gain the period that high death rate take place and the average life expectancy. According to the information above, the enterprise can make corresponding strategy and government can conduct the enterprise in healthy developing ways. But le this model has certain problems from personal views. Hence it also brings out the revised commercial age model on the basis of Japanese research.