The current study aims to investigate the effect of cash flow information asymmetry on conditional and unconditional accounting conservatism of the listed companies on Tehran Stock Exchange. Furthermore, we attempt to explore the determinant factors on these associations. The financial information of 143 firms listed on the Tehran Stock Exchange for the period of 2012 to 2016 was gathered. In order to assess conditional conservatism Basu\\\'s (1997) model has been used, and to evaluate the relationship between conditional asymmetry and cash flow information asymmetry control variables of lifecycle have been added to Basu model. The results indicate that there is no relationship between conditional conservatism and cash flow information asymmetry as well as firm lifecycle variables, which is used to assess unconditional conservatism, and cash flow information asymmetry. Furthermore, we find no allocative factor on the relationship between accounting conservatism and cash flow information asymmetry. This is the first investigation that is dealt with cash flow asymmetry and both types of accounting conservatism separately in emerging economies.

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