"Japan has a long traditional of supporting smaller companies to the detriment of the health of larger companies. The "Convoy System" allows small market share for small firm, so they don't disappear, while larger firms are given the ability to quickly expand and compete. The interference of capitalism results in less efficiencies across the entire market and results in less profits for larger firms."

Source: Economist Magazine. What Japan needs is more bankruptcies. July 1st. … "Zombie Companies" has a significant impact, so an analyst should put more weight into it. "Zombie Companies" will have a long-term negative impact on this entity, which subtracts from the entity's value.