Japan set to elect female prime minister in landmark first
Over the last two decades, Japan has seen more than 10 leaders.
In fact, a specialist compares assuming the nation's top job to taking a "cursed cup".
But why does the country frequently replace leaders? 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 primary rivalry comes from within the party, rather than from opposition groups.
"So within the LDP there are vicious struggles within different factions - they all desire their own clique to secure the top job."
"So even though you could be selected as prime minister, as soon as you're in office, you have many individuals manoeuvring to try to remove you again."
Key Factors Behind Frequent Changes
- Single-party rule restricts outside challenges
- Internal factional rivalries fuel power struggles
- The prime minister's position is frequently called a "poisoned chalice"
- Government continuity stays elusive despite financial power