165271 20260123143855.0 doi 10.1016/j.adiac.2010.08.003 sideral 71242 ART-2010-71242 eng Callao Gastón, S. Universidad de Zaragoza (orcid)0000-0003-1298-7183 IFRS adoption in Spain and the United Kingdom: Effects on accounting numbers and relevance 2010 Access copy available to the general public Unrestricted This paper examines the quantitative impact of mandatory IFRS adoption on financial reporting issued by first-time adopters. It analyses whether relevance of financial information is higher under IFRS than the information provided in financial statements prepared under local GAAP when investors have to make decisions in the capital markets. Both studies compare results in Spain and in the United Kingdom, whose accounting systems have been traditionally considered in opposite groups. The results of the research reveal that the quantitative impact is significant in both countries and, against what we expected, it is higher in the United Kingdom. We also observe that IFRS have negative effect on the relevance of financial reporting in both countries, although this effect has only been significant in Spain. info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ferrer García, C. Universidad de Zaragoza (orcid)0000-0002-6744-1092 Jarne Jarne, J. I. Universidad de Zaragoza (orcid)0000-0003-0334-192X Laínez Gadea, J. A. Universidad de Zaragoza (orcid)0000-0003-3649-9125 4002 230 Universidad de Zaragoza Dpto. Contabilidad y Finanzas Área Economía Finan. y Contab. 26, 2 (2010), 304-313 Adv. Account. Advances in accounting 0882-6110 295534 http://zaguan.unizar.es/record/165271/files/texto_completo.pdf Postprint 816646 http://zaguan.unizar.es/record/165271/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:165271 articulos driver 2026-01-23-14:37:10 ARTICLE