The nation on course to elect woman prime minister in landmark first
Over the last two decades, Japan has seen more than 10 leaders.
In fact, a specialist likens assuming the nation's top job to taking a "poisoned chalice".
But why does the country frequently replace leaders? It's due in part of it being a "one-party democracy", says Professor James Brown of Temple University Japan.
The LDP's grip on the country's politics means the main political competition originates within the party, rather than from external parties.
"So within the LDP there are vicious struggles within various groups - they all want their own clique to secure the leadership position."
"So even though you could be chosen as prime minister, the moment you're in power, you have dozens of people scheming to try to remove you again."
Key Factors Behind Rapid Turnover
- One-party dominance limits external competition
- Party infighting drive leadership contests
- The leadership role is often described as a "cursed position"
- Political stability stays difficult to achieve despite economic strength
