全社会固定资产投资
全社会固定资产投资，是指指国民经济社会各部门投入固定资产形成的实物资本总额。即指企业、机关事业单位、家庭和其它社会组织，发放借款购置固定资产，或者按独资、合伙成立企业，或通过公开发行股票筹资，或出资建设项目等方式而增加固定资产总额所构成的一种投资行为。
全社会固定资产投资包括三大领域：一是政府投资。即政府投入重大基础设施建设，如建造道路、河流治理、新能源、农村基础设施等，是政府形成直接投资的形式；二是企业投资。企业投资主要指企业投入资金以及其它财物购置固定资产，以获得对生产活动、组织规划开展更有利的条件；三是家庭投资，家庭投资指个人以保本收益投资，或建造自用住房、改造原有资源等。
全社会固定资产投资对经济发展具有重要的作用，它不仅可以增加国家的生产能力，改善当地的基础设施，还可以增加就业机会，推动经济的增长。它是实现经济增长的重要抓手，是社会繁荣的重要基石，因此，要注重固定资产投资的有效规划，保持投资的持续增加、可持续发展，促进社会经济的健康发展。
全社会固定资产投资不仅需政府支持，而且需要积极参与社会各界，共同努力，促进各类投资活动的开展，最大限度地发挥政府积极作用，不断增加投资额，激发投资热情，实现更多投资项目的实施，以更快的速度实现经济增长。加强投资宏观调节，完善企业投资政策，有效地支持企业投资，促进固定资产投资的有效发展，推动社会经济的可持续发展。
全社会固定资产投资英文缩写
Fixed Asset Investment (FAI) is a financial measure to measure the total investment of all economic entities in fixed assets such as structures, machinery, vehicles and other equipment during a certain period. This indicator is the sum of the fixed assets investments of all economic entities (including enterprises, governments, households, etc.) in the reporting period, including not only the original increase in the purchase of fixed assets, but also the net increase of existing fixed assets caused by repair, replacement and expansion.
Generally speaking, the decisive factor of economic growth is the increase of total investment in fixed assets. The high level of fixed assets investment in a certain period means that the society has sufficient funds to invest in long-term projects. Therefore, the growth rate of fixed assets investment is often an important indicator for measuring the economic strength of a country, region or industry. The degree of investment in fixed assets of a certain region or industry can intuitively reflect the degree of development of the region or the industry, and also reflect the magnitude of the scale of the industry.
In addition, for the same fixed assets investment, it is also necessary to compare the proportion of investment in different industries in order to further understand the development trend of related industries. Changes in the overall fixed assets investment index also indicate changes in the demand for goods and services in the economy.
Therefore, FAI (Fixed Asset Investment) is defined as the total investment of all economic entities in fixed assets, such as structures, machinery, vehicles and other equipment, during a certain period. FAI plays an important role in promoting economic development and reflects the size of the industry.
