The nation set to elect woman prime minister in landmark first
Over the last two decades, the country has had more than 10 prime ministers.
In fact, a specialist likens assuming the country's highest office to taking a "poisoned chalice".
But why does Japan keep changing prime ministers? It's due in part of it being a "one-party democracy", explains Professor James Brown of Temple University Japan.
The LDP's grip on the political landscape means the main political competition comes from inside the party, instead of from opposition groups.
"Therefore inside the LDP there are vicious struggles within various groups - they all desire their own faction to secure the leadership position."
"Thus although you might be selected as leader, the moment you're in office, you have dozens of people scheming to try to get you out again."
Key Factors Behind Frequent Changes
- One-party dominance limits external competition
- Party infighting fuel power struggles
- The prime minister's position is often described as a "cursed position"
- Government continuity stays difficult to achieve despite financial power
