The purpose of this study is to analyze the relationship between operational risk and accounting conservatism. The criterion used for operational risk in this study is asset volatility and for accounting conservatism, we use Ball and Shivakumar (2005) model [Ball, R., & Shivakumar, L. (2005). Earnings quality in UK private firms: comparative loss recognition timeliness. Journal of Accounting and Economics, 39(1), 83-128.], which analyzes accounting from balance sheet sight. The statistical society used in this study is taken from 15 banks in Tehran Stock Exchange over the period 2006-2012. The research result demonstrates that there was a negative relationship between operational risk and accounting conservatism. In other words, there is a significant negative relationship between operational risk and accounting conservatism. Hence, the results suggest that with an increase (decrease) in operational risk, accounting conservatism decreases (increases).
The purpose of this paper is to study the effect of the tax expenses on accounting conservatism on firms listed on Tehran Stock Exchange. In this study to measure the conservatism accruals is used to test the research hypotheses based on the information gathered from 61 firms listed on Tehran Stock Exchange over the period 2004-2009. Findings indicate that the relationship between conservatism accounting and corporate tax burden was positive and significant. In addition, firms with high book-tax conformity had higher motivation to use the conservative accounting to reduce their tax payments.