We investigate the relation between segment disclosure and earnings quality. Using a US
sample for the period 2001–2006, we find a positive relation between earnings quality and
the quantity of segment disclosures. We use lead-lag tests to examine the flow of causality,
and our results show that current segment disclosure is positively related to prior levels of
earnings quality, while current earnings quality scores are not related to prior levels of
segment disclosure. Thus, the causality flows from earnings quality to segment disclosure …