A study looked at how spending more time on audits affects their quality for companies in Korea. They focused on a new system where certain auditors are picked by a financial authority. The researchers found that when auditors spent more hours on audits, the quality of the financial reports improved. This was especially true for audits done under the new system. Basically, when auditors put in more effort, the reports were more reliable. The study suggests that the quality of audits doesn’t just depend on the system but also on the hard work of the auditors themselves.