Marathon running has experienced considerable growth in recent years, fueled both by an increase in participation rates and by a corresponding increase in the number marathons staged each year. Because marathons have a presumed economic benefit, there also has been growth in the number of marathon-related economic impact studies. However, these studies calculate incorrectly, or omit altogether, an important source of impact: the impact generated when local runners use their home-city marathon as a substitute for participating in an alternative marathon out-of-town. Given that this pattern...Read more