Which statement correctly describes plurality vs proportional representation in Mexico?

Which statement correctly describes plurality vs proportional representation in Mexico?

• A. Plurality allocates seats to the party with the most votes nationally
• B. Plurality awards seats to the candidate with the most votes in a district; proportional representation allocates seats based on party vote shares
• C. Proportional representation awards seats to the candidate with the most votes in a district
• D. Mexico uses only proportional representation

Answer: (B)

In Mexico, deputies are chosen through two methods: district-level plurality and nationwide proportional representation. In single-member districts, the candidate with the most votes wins the seat, even if they don’t achieve an absolute majority. The proportional representation portion assigns seats to parties based on their share of the vote across the country (or regional lists), so parties receive seats roughly in proportion to their total vote share rather than to individual district winners. This combination means the Chamber of Deputies has 300 plurality district seats and 200 PR seats, balancing local winners with overall party support.

So, the statement that best describes this is that plurality awards seats to the candidate with the most votes in a district, while proportional representation allocates seats based on party vote shares. The other options misstate how district seats are won, or mischaracterize the role of proportional representation, or claim Mexico uses only proportional representation.