Auditors demand accuracy in financial statements with increased disaggregation.
The study looked at whether breaking down income statement numbers makes them more accurate. Experienced auditors found and corrected smaller errors in the broken-down numbers. They also thought that breaking down numbers would make it more likely for errors to be caught by regulators. However, if the broken-down numbers were only in the notes, the effect was smaller. People disagreed on whether broken-down numbers are important for setting limits on errors. This shows a possible issue with current auditing rules. Breaking down numbers voluntarily could actually make income statement totals more reliable.