Unobservable Effects and Speed of Adjustment to Target Capital Structure Written by Bolaji Tunde Matemilola, Bany Ariffin Amin Noordin, Wan Azman Saini Wan Ngah and Annuar Md Nassir on 05 July 2016. Posted in Vol.16 No.3, 2015 International Journal of Business and SocietyVol. 16 No. 3, 2015, 470 - 479 Full Paper