This paper examines the decrease in gross gaming volume, specifically slot machine coin-in, on the Las Vegas Strip resulting from the events of September 11, 2001. An intervention analysis based on a seasonal ARIMA model was developed from Nevada Gaming Control Board slot machine coin-in data analyzed from January 1990 to November 2004. The findings revealed that the Strip experienced an abrupt decline in gaming volume lasting five months. Although a quick recovery ensued, residual effects lasted approximately two years. In spite of the uniqueness of the events of September 11, this study should help managers in their response to future terrorist attacks and other catastrophic events
