Participative leaders often say they have an "open-door policy," emphasizing their open communication style. Such managers often seek employee input on decisions, listen to employee concerns, and delegate tasks

How does this approach affect the effectiveness of these leaders?
What will be an ideal response?

Answer: It might not. Participative, or democratic, leadership does not necessarily make managers more effective. It usually does, however, enhance job satisfaction among workers, which can be a desirable effect.
Explanation: Working under a manager who has a participative leadership style enhances job satisfaction, which tends to raise employee morale. It does not, however, always improve the effectiveness of the manager or of the unit.