Which of the following is not a characteristic of open model of organisation? (i) Ends (or getting to job done) rather than means are emphasized. (ii) Non routine tasks occur in unstable conditions (iii) Interaction between people in organization tends to be horizontal as well as vertical. (iv) Conflicts within organisation are adjudicated from top.

The open model of organization emphasizes ENDS over MEANS (i), operates in unstable conditions with non-routine tasks (ii), encourages horizontal communication (iii), and resolves conflicts through negotiation rather than top-down adjudication. Therefore, statement (iv) - 'Conflicts within organization are adjudicated from top' - represents a CLOSED/BUREAUCRATIC model characteristic, not an open one.