A compulsory top women's quota does not result in more women in middle management. The CPB and CBS concluded this on Wednesday in the Women at the Top report .

The profit also remains the same if, due to a mandatory quota, more women are in top positions. This is the result of research into the introduction of quotas in other European countries.

In order to get more women in all levels of companies, there must be additional policies from the government and the business community. For example, prejudice needs to be addressed and an attempt can be made to increase the part-time factor of women. The idea is that as soon as they work more hours, employees continue to move upwards.

The formulation of a diversity strategy is also a good step for companies. The top of a company must really commit itself to this, and offer a coherent package of measures to promote diversity at all levels.