This does not include what is necessary for growth but rather merely the maintenance of the productive capacity of the economy (in terms of both physical and human capital). This value is the percentage of GDP consisting of depreciation. GDP minus capital consumption allowance (CCA) is the net national product (NNP). GDP is more often used to assess the state of the economy, however, because capital consumption allowance figures are not always available or accurate.

• depreciation
• Net Domestic Product
• capacity utilization rate
• Gross Domestic Product
• human capital