Considering the findings by Silva (2014), which indicate that the probability of adopting HA is positively associated with obtaining resources abroad, revenues in foreign currency, company size, among others, the samples highlighted in Panels A and B of Table 1 may fail to provide an analysis of the effects of HA on the quality of accounting information, but they provide information on the accounting complexity inherent to large companies. Thus, samples of comparable companies were created, searching, for each firm-year observation of a company that adopted HA, its counterfactual, i.e. a firm-year observation of a company that did not adopt HA and had a similar size measured by total assets. Thus, the comparable sample for relevance had 350 firm-year observations, 175 with HA and 175 without HA; the comparable sample for informativeness had 326 firm-year observations, 163 with HA and 163 without HA.