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ABSTRACT: This study investigates the role of global audit firm networks in the market for audit services. Underlying theory suggests that there are benefits from the use of network structures, which enable these firms to expand efficiently into the global audit market and to develop global industry specializations. I identify global and national industry specialist auditors via market share metrics based on client assets audited, and use a large sample of 15,583 clients from 62 countries in 2000 and 14,628 clients from 60 countries in 2004. I find in both periods that audit fee premiums are consistently associated with global specialist auditors, irrespective of whether those audit firms are or are not national specialists.
Elizabeth Carson (2009) studied this question.