There are many types of spending multipliers. They are divided up into different equations.
The first type of equation is the standard income tax, which is used to apply to earnings of individuals. The second type is the standard government spending one which evaluates varied aspects of government expenses for use in compiling an annual budget. The third is the standard investment one, which helps analyze markets and provide data for economic summaries for countries. The fourth is the exports one, which calculates the profits of exporting goods to foreign countries. The last one is the balanced-budget government spending one which helps the government to compile a workable budget.