The Tools for tackling the gender pay gap project, is a project promoted by the Union General de Trabajadores (General Union of Workers) of Spain and subsidized in the Women Institute convening for public subsidies destined to the execution of projects directed to the compliance of objectives under the Memorandum of Understanding for the Financial Mechanism Implementation of the European Economic Area 2009-2014 between the Kingdom of Norway, Iceland, the Principality of Liechtenstein and the Kingdom of Spain, through the Program “Gender Equality and Reconciliation of family and work life”.

The purpose of the project is to contribute to the gender pay gap reduction through collective bargaining. And the final purpose is to contribute to the increases of collective agreements and equality plans that contain measures directed to reduce the gender pay gap between women and men.

The project content is directed to the development of tools that facilitate union negotiators to detect the pay gap in companies as well as to facilitate orientation and recommendations addressed to people participating in the collective negotiation for the design and adoption of specific measures towards the reduction of gender pay gap between women and men.

In order to facilitate the identification of factors that influence the pay gap by union negotiators, we are developing computer applications in the project, with the introduction of known data (pays lips, wages conventions, etc.), analyzing factors that cause the greater difference in retribution between women and men, for the same job and for jobs of equal value.

The computer tool we have called “Salary Equality General Indicator –IGIS (SEGI)”, for mobile devices (smart phones, tablets, etc.) will allow us to immediately know the percentage of existing wage differences.

And the tool we have called “Weighted Marker of Salary Equality – IPIS (WMSE)” will allow, with an index and variables catalog, the identification of factors that contribute to the salary gap, as for instance modes of contracting, working hours, remuneration structures, etc… in order to be able to identify the factors that have a greater influence in the establishment of different salaries for women and men for equal jobs or jobs with the same value.

The development of these computer tools is complemented with the performance of research about factors influencing the pay gap and a good practices and recommendations guide addressed to negotiators and workers representatives for the design and adoption of measures which purpose is to reduce the pay gap.

Additionally, it is necessary to train, inform and increase the awareness of the social partners in charge of collective bargaining, in matters of pay equality, their legal treatment and instruments to fight inequality and discrimination, including the use of instruments resulting from the Project, for which training, information and awareness sessions will take place, as well as a final seminar for those same purposes: the presence of all Autonomic communities different activity sectors union representatives will be included for these activities.

A total of 6 workshops to train people participating in collective bargaining, about our professional structure, sector federations and different sectors of activity will be carried out. Training and awareness sessions will also take place in the 17 Autonomic Community Unions, as well as the autonomous cities of Ceuta and Melilla.

The project includes an awareness campaign directed at employees of work centers, to raise awareness about the existence of the pay gap and its consequences, as well as the right to demand the compliance of equal treatment and opportunities principle, between women and men, in work conditions.


The direct recipients of this project are the General Workers Union representatives in all sectors of activity, members of company committees and staff meetings, personnel delegates and people who intervene in the collective bargaining procedures by our organization.

The indirect recipients of our project are union representatives and those participating in the collective organization by the union as well as by the entrepreneurial section of other organization and the workforce in Spain.


The products resulting from the Project will be two computer tools that facilitate the identification of salary differences: Salary Equality General Indicator (SEGI) and Weighted Marker of Salary Equality (WMSE).

Research about pay gap influencing factors.

A recommendations and good practices Guide which gathers measures and experiences that may be useful for those participating in collective bargaining against situations in which gender pay gap has been detected.

Materials for an awareness campaign about the pay gap, addressed to the workforce.