Palestinian Election System Delivers Hamas Majority

But Hamas also claimed 46 district seats, or 70%, versus 16, or 24%, for Fatah. Where Fatah overnominated candidates, Hamas proved more apt at "gaming" the winner-take-all district system. Fatah also may have faced spoilers from other moderate parties and independents.
Assuming the list totals are an accurate measure of national support for each party, Hamas is overrepresented by 25% while Fatah is underrepresented by 17%. Even with the mitigating effect of the list seats, Hamas is likely overrepresented in the full legislature by 13% while Fatah is under-represented by 8%. Had the entire parliament been filled in a list election, neither party would have had a majority, and Hamas would have had to form a coalition with more moderate factions.
[ FairVote's Palestinian elections page ]
[ Read the full report - Adobe .pdf 535k ]
[ Over- and under-representation in Japanese Parliamentary elections ]
[ Palestinian election results - Adobe .pdf 48k ]
[ BBC report on the results ]