Irwin, Wang, and Sutton (19913) found that when tourists were asked to project the amount of money they would spend during their stay, they frequently underestimated their expenditures. Faulkner and Raybould (1995) asked one group of event sport tourists to keep a diary of its expenditures, while others were asked to recall their expenditures following the event. Like Irwin et al., Faulkner and Raybould found that tourists who were asked to recall the amount of money they had spent tended to estimate conservatively. Consequently, while asking people to keep diaries is a more difficult method to implement, it may be the most accurate way of tracing event tourist expenditures in a community.
In addition to the economic impact, event planners should also be aware of other potential effects. Burgan and Mules (1992) suggest that event planners adopt a conservative estimate of the potential profit (economic impact) from the event, as the expense of organizing an event is frequently underestimated. Indeed, a growing body of research indicates that there are both positive and negative impacts on a host community, especially at the national and international