DSE Geog 地理概念 + Essay例子 | C3: Development of an Industrial Region

Source: https://geographyfieldwork.com/MultiplierEffect.htm

The introduction of a new industry or the expansion of an existing industry in an area also encourages growth in other industrial sectors. This is known as the multiplier effect/ cumulative causation which in its simplest form is how many times money spent circulates through a country's economy.