mately 6.1 % of the U.S. Gross Domestic Product (Statistical

The Tourism Activity Index is a composite measure of tourism activity levels in San Antonio, Texas, developed to provide a barometer for evaluating the strength or weakness of tourism in the local economy. This particular index uses the principal components method of factor analysis to derive the index weights. This article presents the methodology, data collection techniques, and index results. Tourism is a vital component of the national economy. The most recent data available indicates the travel industry is a large and growing sector of the U.S. economy, with esti-mated sales of $345 billion in 1991 (Economic Impact o