What does the term tourism multiplier effect mean? Don't just explain the multiplier effect. Thank you.

The meaning of tourism multiplier Tourism multiplier is a coefficient used to measure the influence of tourism consumption of tourist reception areas on various economic phenomena. It refers to the ratio of the changes in output, income, employment and government tax revenue to the initial changes in tourism expenditure. The process of tourism multiplier effect (1) is the direct effect stage; (2) Indirect effect stage; (3) Induction effect stage. Tourism multiplier (1) The basic type of transaction or sales multiplier; (2) Output multiplier; (3) income multiplier; (4) Employment multiplier; (5) government tax multiplier.