Request for a preliminary ruling from the Tribunal Superior de Justicia del País Vasco (Spain) lodged on 20 March 2015 — María Pilar Plaza Bravo v Servicio Público de Empleo Estatal. Dirección Provincial de Álava

(Case C-137/15)

(2015/C 178/11)

Language of the case: Spanish

Referring court

Tribunal Superior de Justicia del País Vasco

Parties to the main proceedings

Appellant: María Pilar Plaza Bravo

Respondent: Servicio Público de Empleo Estatal. Dirección Provincial de Álava

Question referred

Is it contrary to Article 4(1) of Council Directive 79/7/EEC (1) of 19 December 1978 on the progressive implementation of the principle of equal treatment for men and women in matters of social security (‘the Directive’), in circumstances such as those of this case, for national legislation under which, in order for the amount of the benefit for total unemployment to be received by an employee following the loss of her only part-time employment to be calculated, a reduction coefficient for part-time work that corresponds to the percentage represented by the part-time working hours in relation to the hours completed by a comparable worker employed full-time is applied to the maximum amount [of unemployment benefit] generally laid down by law, regard being had to the fact that in that Member State the vast majority of part-time workers are women?

(1)  OJ 1979 L 6, p. 24.