Hybrid time series data often require special care in estimating seasonal factors. Series such as the state and metro area Current Employment Statistics produced by the Bureau of Labor Statistics (BLS) are composed of two different source series that often have two different seasonal patterns....

"In this paper we use a dynamic single-factor model originally due to Stock and Watson [18, 19] to measure the business cycle in four Texas border Metropolitan Statistical Areas (MSAs) and Mexico. We then measure the degree of economic integration between border cities, the US, Texas, and...