Purpose-This study aims to explore corporate earnings management practices in Australia and New Zealand before and after the regulatory changes and corporate governance reforms. The study argues that the effectiveness of regulatory reforms has to be reflected in constraining earnings management in post-reform period as compared to pre-reform period. Design/methodology/approach-Using a sample of 3,966 firm-year observations, including all ASX and NZX listed firms for the period 2001-2006, the study examines earnings management practices in both countries in pre- and post-reform periods with appropriate statistical methods. Findings-The results indicate some interesting phenomenon: the magnitude of earnings management did not decline after the governance reform as a positive time trend is observed in the entire sample as well as in Australian and New Zealand sub-samples, suggesting that earnings management has been growing over time. Additional test indicates no structural change has occurred before and after the new regulations. The shifting from decreasing earnings management to increasing earnings management can be interpreted as an evidence that earnings become more 'informative' in a more transparent disclosure regime to capture short-run benefits from regulator reforms. Research limitations/implications-The shifting of earnings management behaviour from decreasing to increasing income can be interpreted as the outcome of more "informative", rather than "deliberate", earnings management in a more transparent disclosure regime to capture short-run benefits of regulatory reforms, which is worth further investigation. The findings of the study can lead regulatory authorities taking appropriate measures to promote earnings quality in corporate financial reporting from a long-run decision usefulness context. Any future reforms should be directed to protecting the interest of stakeholders as well as ensuring benefits outweighing costs for them. Practical implications-The findings of the study can lead regulatory authorities in taking appropriate measures to promote earnings quality in corporate financial reporting from a long-run decision usefulness context. Originality/value-The study adds value to the existing earnings management literature as well as effectiveness of regulations for the benefit of wider stakeholder groups.
