Proceedings of European Business Research Conference Sheraton Roma, Rome, Italy, 5 - 6 September 2013, ISBN: 978-1-922069-29-0 Conditional Conservatism in U.S. High- and Low Technology Firms Mariem Khalifa , Hamadi Matoussi and Samir Trabelsi** We investigate the level of conditional conservatism in the U.S. hightechnology and low-technology firms. Our findings further the conclusions of Chandra (2011) that high-technology firms are less conditionally conservative relative to low-technology firms. Previous evidence from Qiang (2007) and García-Lara, García-Osma and Penalva (2009) are expanded by examining the drivers of this crosssectional difference in conditional conservatism between high- and low-technology firms. As shown in prior literature, there are four potential explanations for accounting conservatism: Contracting, litigation, taxation, and regulation (Basu, 1997; Watts, 2003a; Qiang, 2007 and García-Lara et al., 2009). Our empirical tests are consistent with high-technology firms which are less conditionally conservative than low-technology firms. The level of conditional conservatism increases with the level of leverage regardless of the technology level of the firm. Only low-technology firms are more conditionally conservative when they face higher auditor litigation risk. We find that neither in high-technology firms nor in low-technology firms, taxation affects conditional conservatism. Keywords: Conditional conservatism; Contracting; Litigation risk; Taxation. High-technology; Low-technology; JEL Classification: C23, L63, L65, L86, L96, M41, O51. _________________________________________________________ Mariem Khalifa , Visiting PhD Candidate, Brock University Hamadi Matoussi, Professor of Finance, Manouba University, hamadi.matoussi@iscae.rnu.tn Samir Trabelsi**, Associate Professor of accounting, Brock University, strabelsi@brocku.ca ** Corresponding author 1