銀行資本・資産比率（%）

The indicator is a measure of capital adequacy that evaluates the financial strength of deposit takers by comparing Tier 1 capital to total assets. Tier 1 capital, often referred to as core capital, includes the most stable and readily available forms of capital, such as common equity, disclosed reserves, retained earnings, and certain other instruments that meet regulatory requirements under the Basel framework. This capital is considered the highest quality because it is fully available to cover losses and does not need to be repaid.