The commitment theory developed by these authors relies heavily on the individual’s feeling of freedom and the nature of the acts accomplished or to be accomplished. According to Beauvois and Joule, the feeling of freedom accounts for the perseverance in a decision. Two main types of action are considered: ‘non-problematic’ actions that are compatible with our ideas and beliefs and induce a greater resistance to change and a strong commitment, and the constrained or ‘problematic’ actions. These often lead people to alter their decisions, except if they have been very difficult to make. In the latter case, positions are more rigid and commitment is rather weak. When an individual has been forced to make a decision, indeed, there is a boomerang effect that goes against the desired effect.