Introduction

This study investigates the relationship between district magnitude systems and female representation across Argentina and other Latin American countries. Rather than a straightforward effect, we find an ambiguous but ultimately positive impact.

Methodology & Findings

Our analysis leverages unique aspects of Argentina's electoral system where half the deputies are elected every two years. This setup allows us to isolate effects because some districts face varying magnitude levels across concurrent and midterm elections.

We identify two competing mechanisms:

• Positive Effect: Increased district magnitude promotes female representation by enlarging party structures (party magnitude effect).

• Negative Effect: Larger district magnitudes increase the number of lists gaining seats, where marginal lists are typically male-dominated. This creates a counteracting barrier for women.

Our results reveal this complex interplay:

* A positive but weak overall impact on female representation exists in Argentina and across Latin America.

* The effect can be decomposed into its constituent parts - the party magnitude boost partially offsets the negative list seat increase effect.

Conclusion

These findings demonstrate that while district magnitude reforms aim for greater gender diversity, their success depends critically on how they affect electoral dynamics. Our nuanced perspective offers important insights beyond simplistic models.