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Economic Impacts of Parks, Rivers, Trails and Greenways

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Summary <strong>of</strong> ActionsSimilar to corporate location decisions the effect <strong>of</strong> GGNRA on retirement locationdecisions cannot be easily quantified. The best option might once again be to add questionsto surveys <strong>of</strong> partner organizations, park volunteers <strong>and</strong> park users:1. Are you retired <strong>and</strong> living in the Bay Area?2. If yes, how important was GGNRA or one <strong>of</strong> its member parks in your decision toretire in this area? What percentage <strong>of</strong> your decision would you attribute toGGNRA?3. How much money do you have invested through a local bank or broker? What isyour annual income <strong>and</strong> what percentage <strong>of</strong> that income do you spend locally in anaverage year?OutcomesAs with a corporate location survey the eventual goal would be to develop a rough estimate<strong>of</strong> the number <strong>of</strong> seniors who have relocated to or stayed in the Bay Area specifically forthe recreational amenities that GGNRA <strong>of</strong>fers. If income <strong>and</strong> local expenditure data fromthese seniors could be gathered, a rough estimate <strong>of</strong> the impact <strong>of</strong> the seniors on the localeconomy might be developed.3.8.14 Estimating the Effects <strong>of</strong> SpendingAs mentioned in other sections, GGNRA-related expenditures create indirect <strong>and</strong> inducedeffects because spending <strong>of</strong>ten circulates in the local area beyond the initial purchase.Businesses <strong>and</strong> employees are able to use their income to purchase additional goods <strong>and</strong>services from other businesses in a variety <strong>of</strong> sectors. The sum <strong>of</strong> all these effects will showhow GGNRA generates economic activity within the local, regional <strong>and</strong> even nationaleconomy. Models such as MGM2 can be used to determine the broader economic impacton an area from this effect. The validity <strong>of</strong> results from models, however, depends on theaccuracy <strong>of</strong> inputs such as the number <strong>of</strong> visitors to GGNRA <strong>and</strong> their direct spendingpr<strong>of</strong>iles, knowledge <strong>of</strong> the structure <strong>and</strong> diversity <strong>of</strong> the local economy, <strong>and</strong> quantity <strong>of</strong>input supplies purchased within the local community compared to those that “leak” outsidethe area <strong>of</strong> interest. Multipliers, the ratios used to estimate the indirect <strong>and</strong> induced effects,must therefore be chosen carefully. They are <strong>of</strong>ten derived from input-output models suchas IMPLAN, which show the flow <strong>of</strong> money between industries in a particular economicactivity by county.Summary <strong>of</strong> Actions1. Revisit the scope <strong>of</strong> the economy/community to be considered (city, region, etc) forconsistency. The larger <strong>and</strong> more diverse the area is, the greater the economic impactbecause more dollars will circulate within it. Also, it may be hard to acquire spendingdata within an obscure boundary.2. Collect visitation <strong>and</strong> expenditure data for the area so that daily expenditures can bemultiplied by the number <strong>of</strong> users. Consider what portion <strong>of</strong> expenditures can beattributed to GGNRA <strong>and</strong> were purchased locally, then amortize over time. Large143

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