Increased unethical corporate practice in the world and in Turkey bring the debate whether business school prevent corporate infringes by teaching ethics as a part of their curriculum. Therefore, ethics related lessons rapidly took a part of business school curriculums. Objective of this study is to what extend the ethics lessons made a part of the curriculum and how they are adopted by the business faculty or department in Turkish Universities. The study used neo-intuitional theory as conceptual frame and data were analysed by using documentary analysis as a method. Findings show that, business schools which made ethics as a part of their curriculum not reached a considerable number yet. When we evaluate these fi ndings together with the decoupled practice with technical system, as a result we can say that the actual case characterized decoupled rather than supported institutionalisation of ethical behaviours.