“…He reported that the level of audit fees could increase in client firms' size, operation complexity, and inherent audit risk because more quantity of resources utilized by the auditor in performing the audit examination would be needed and auditors were exposed to larger possible litigation risks when auditing become more complex. After controlling these three groups of fee determinants, subsequent studies explored additional audit fee determinants including auditor size, non-audit services, auditor change, auditor change direction, auditor brand name and industry specialization, client satisfaction, client risks, client bargaining power, audit committee characteristics, internal control quality, SOX passage, crosslisting and country's legal regimes, education requirement for new accountants, and audit market competition (Sohn, 2011;Palmrose 1986aPalmrose , 1986bFrancis & Simon 1987;Simon & Francis 1988;Craswell et al, 1995;Behn et al, 1999;Craswell & Francis, 1999;Johnstone & Bedard, 2001;Whisenant et al, 2003;Abbott et al, 2003;Ashbaugh et al, 2003;Chaney et al, 2004;Hay et al, 2006, Huang et al, 2007Hogan & Wilkins, 2008;Huang et al, 2009;Choi et al, 2009;Allen & Woodland, 2010, Hay & Knechel 2010Fudenberg & Tirole, 1995;Hoitash et al, 2008).…”