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In the context of sustainable development goal 5 of the United Nations 2030 Agenda: “Achieve gender equality and women’s empowerment”, where gender equality is not only a matter of justice but also essential to achieve sustainable development, this paper aims to examine the gender pay gap in executive director compensation and the influence of female board representation and participation in nomination and remuneration committee (NRC) on this gap in Spanish listed firms over the period 2012–2022.

The analysis is conducted using a data set created by the authors, which includes executive director compensation data for 164 unique firms. This data set comprises 128 distinct observations for a given firm and year for women, and 2,333 observations for men. The authors estimate ordinary least squares models, clustering standard errors by executive. The authors use Oaxaca-Blinder decomposition to decompose gender differences in compensation into differences in the characteristics of men and women and differences in the return on the same characteristics.

The authors find evidence of pay penalty for female executive directors compared to male counterparts. After controlling for firm, board and executive characteristics, the authors find that women earn 27% less than comparable men. The penalty is lower in companies with a higher share of women on the compensation committee, suggesting that women’s participation plays a role in setting a more equal remuneration policy. The gender gap in executive compensation narrows over time due to a substantial reduction of the differences between men and women in both characteristics and the return on these characteristics.

This study is one of the few analysing the gender gap in executive director compensation and its evolution in Spain. It specifically explores how gender diversity on both the board and the NRC impacts this gap. The analysis is focused on the most recent period characterized by important efforts to promote gender diversity.