Benchmarking the production of audit services: An efficiency frontier approach

To compete effectively in an increasingly competitive audit market audit firms need information on the efficiency of the audit services they offer. This study reports on the cost and labor efficiency for a sample of 114 audit engagements conducted by one of the (then) Big 6 audit firms. Estimating the efficiency of audit engagements is a form of benchmarking, of which economics oriented research has seen many applications. The application to auditing however is, as far as we know, relatively new. To determine the cost and labor efficiency of the audit engagements we employ the statistical technique of stochastic frontier estimation. Using models from the well-known and established audit fee and audit production literature we find that for our sample audit services are produced in a cost and labor efficient manner. Keywords: accounting and auditing, economics; audit production, cost and labor efficiency, stochastic frontier estimation Data availability: The data used in this study are proprietary to the audit firm studied and cannot be released by the authors. Address for correspondence: Caren Schelleman, Maastricht University, Faculty of Economics and Business Administration, MARC, PO Box 616, 6200 MD MAASTRICHT, The Netherlands. Phone: ++31.43.388.37.14. Fax: ++31.43.388.48.76. E-mail: c.schelleman@berfin.unimaas.nl