This study examines the effectiveness of women and men legislators in Argentina (1983-2007) regarding bill approval. Contrary to expectations, gender itself does not directly impact legislative success when controlling for other factors.

Institutional Pathways:

The author argues that indirect effects are significant: Women face disadvantages due to limited access to influential institutional positions. These pathways include:

* Lack of committee leadership roles

* Unfavorable committee assignments

* Disadvantages related to bill content choices

Findings:

* No direct effect of gender on bill approval was found.

* Women experience negative consequences indirectly through restricted access to powerful positions. Men, conversely, gain advantages from these institutional roles.

Methodology and Significance:

The analysis uses causal mediation techniques with Argentina's legislative data (1983-2007). This research provides crucial insights into political representation by demonstrating how gender affects outcomes indirectly through access to key positions.