TY - SER AU - Bhattacharya,Nilabhra AU - Jun Cho,Young AU - Kim,Jae B. TI - Leveling the playing field between large and small institutions: evidence from the SEC´s XBRL mandate KW - Contabilidad KW - Publicaciones seriadas KW - Administración del portafolio KW - Análisis de inversiones KW - Agencias de calificación (Finanzas) KW - Finanzas KW - Legislación KW - Estados Unidos N2 - We investigate how XBRL adoption affects smaller institutions' access to financial statement information relative to their larger counterparts. We examine three aspects of trading responsiveness: abnormal trading volume, response speed to 10-K information, and decision to trade immediately following the 10-K filing. With regard to all three aspects of trading responsiveness, we find that small institutions' responsiveness to 10-K news increases significantly more relative to the change experienced by large institutions from the pre- to post-XBRL periods. We further document that small institutions' stock picking skills in the 10-K filing period increase more compared to those of large institutions following the regulation. Our results are robust to a battery of falsification and sensitivity tests. Collectively, our results suggest that the informational playing field between small and large institutions has become more even following the SEC's XBRL mandate ER -