A community starts with policies and a plan of action. Effective community plans have to create an incremental increase in the level of current industry spending which then creates an incremental increase in the money spent by boaters in the community. He referenced several earlier studies, including one by Hushek in 1999, Recreational Boating in Ohio and Economic Impact Study . The government has created a set of tables indicating the contribution of spending in certain areas to local economic impact. The method falls short for the boating industry as categories are not small enough.
Money leaks out of a local area much faster that it leave a state.
Typical conservative multipliers for sales are 1.2 to 1.3 for a local multiplier and 1.6 to 1.7 for a statewide multiplier. Some typical round numbers and calculation methods are shown below. Maybe 45 cents of each dollar of marina expenses go toward wages. It provides activity data by segment. It can use local, state or national spending data.