The nation on course to elect female prime minister in historic first
In the past twenty years, the country has had more than 10 leaders.
In fact, one expert compares assuming the nation's highest office to drinking from a "cursed cup".
But why does the country frequently replace prime ministers? This is partly because of it being a "single-party system", says Professor James Brown of Temple University in Japan.
The LDP's grip on the country's politics means the primary rivalry comes from within the party, instead of from external parties.
"Therefore inside the LDP there are vicious struggles within different factions - they all want their own faction to secure the top job."
"Thus although you could be selected as prime minister, as soon as you're in office, you have dozens of people manoeuvring to try to remove you again."
Main Reasons Behind Frequent Changes
- Single-party rule limits external competition
- Party infighting drive leadership contests
- The leadership role is often described as a "poisoned chalice"
- Government continuity stays elusive despite economic strength
