In Peru, narrow loser Keiko Fujimori has now conceded defeat to Pedro Pablo Kaczynski (PPK) in the presidential run-off. The final result is 50.12% to 49.9%. This is right up there with some of the slimmest margins in the annals of presidential elections. It does not quite beat Taiwan, 2004, however (50.11-49.89).*
Of particular interest is that this election results in divided government, defined as a single-party majority in the assembly opposed to the president. That majority is itself unusual, as it was based on just 37.8% of the vote. Fujimori’s party, Fuerza Popular (FP), won 73 seats out of 130 (56.5%), for an advantage ratio of 1.49. That is staggeringly high for a “proportional” system. Peru uses D’Hondt divisors. The mean district magnitude is around 5. Ordinarily, even D’Hondt (known to favor the largest party) would not produce such a disproportional outcome, particularly given that the country has several large-magnitude districts. However, the second largest party nationwide had only 17.1% (Peruanos Por el Kambio**), implying that in many districts, FP must have been far ahead and therefore poised to maximize advantage out of the D’Hondt divisors. (I did not take the time to scrutinize the district results myself.)
The assembly election was concurrent with the first round, and the FP actually ran just a little behind its candidate, who won 39.9%. PPK (the candidate) won 21.1% in the first round, thereby running well ahead of PPK (the party). Even so, he required a big runoff comeback to eventually win. In fact, Peru 2016 would be just a bit to the right of Austria’s recent (also very close) election in the graph I posted on runoff comebacks.
I do not know of another case of divided government resulting from a presidential runoff election where the assembly had been elected concurrent to the presidential first round.
This was a very unusual election season in Peru. Governing may be a challenge, and divided government may yield some upcoming reminders that the Peruvian system actually is semi-presidential.
* By comparison, the recent election in Austria was practically a landslide.
** The spelling is a play on Pedro Pablo Kaczynski’s initials.