The national wealth statistics system that calculates, assesses, and analyzes all assets and resources of a nation or state's economy. Objectives: identifying wealth sources, supporting economic stability and policies. Main components: natural resources, manufactured assets, human capital, and intangible assets. Principles: objectivity, transparency, comparability, accuracy, speed, comprehensiveness, and confidentiality. Data sources: national reports, statistics, tax and cadaster data, as well as surveys