Of the following statements regarding economic impact, which is true? All spending of casual visitors and time-switchers should be counted in an economic impact analysis. All spending of casual visitors and the incremental spending of time-switchers should be counted in an economic impact analysis. Incremental spending of casual visitors and all spending of time-switchers should be counted in an economic impact analysis. Incremental spending of casual visitors and time-switchers should be counted in an economic impact analysis. None of the above