The Effect of Conditional and Unconditional Conservatism on the Stock Prices Crash Risk, with Emphasis on the Life Cycle of Companies in Companies Listed in Tehran Stock Exchange

This paper examine the effect of conditional and unconditional conservatism on the stock prices crash risk, with emphasis on the life cycle of companies in companies listed in tehran stock exchange for the period 1387 to 1392.Also past studies examines to study the relationship between conservatism and stock prices crash risk, but firstly ever since not examine effect variety conditional conservatism (profit and loss) and unconditional conservatism (balance sheet) altogether on the stock prices crash risk, secondly not examine the relationship life cycle of companies capacity economic property of companies in the relationship between conservatism and stock prices crash risk. For this study, a sample of 94 companies was selected using A total of 564 observed for the period was R 52 470 Dd- Dd- in companies in the growth stage and mature companies in Dd- 42 years in the business is in decline. Statistical methods used in this study is multiple regression method. The results show that the relationship between conditional conservatism and unconditional conservatism with stock price crash risk in each of the different stages of the life cycle of companies.