Fixed Investment.
In plain English
Fixed investment is the part of the economy's spending that goes toward durable, long-lived assets: factories, machines, office buildings, and residential housing. Economists track it as a component of gross domestic product because it builds the economy's future capacity to produce. When fixed investment rises, it usually signals confidence and can power growth; when it stalls, it can be an early sign of a slowdown. It excludes spending on things quickly used up, like supplies.
01Why it matters
Fixed investment is one of the engines of economic growth, so its direction is a useful signal for where the economy is heading.
02The math, step by step
Businesses build new facilities and buy equipment while homebuilders put up houses. Together this fixed investment adds to GDP and expands the economy's future output.
03What this is NOT
Fixed investment is NOT buying stocks or bonds. In economics it means spending on real, durable assets like buildings and equipment, not putting money into financial markets.