An investigation of Customer Accounting systems as a source of sustainable competitive advantage

This study examines whether using customer accounting systems for resource allocation purposes is a source of sustainable competitive advantage. Based on a longitudinal data set comparing the performance of firms that adopt customer accounting and their industry benchmarks, we find that financial performance increases post adoption, leading to significant abnormal positive performance vis-à-vis average industry benchmarks (4-5%-points ROA difference) in the first two years following the adoption. However, we also show that this effect deteriorates over time, suggesting that the adoption of management accounting systems is a source of temporary rather than sustainable competitive advantage. The results are robust to other strategic events around the time of adoption, different matching of peers, and the influence of other factors that could be expected to influence firm performance. We discuss the implications of these findings for management accounting research and practice.