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....

State level unemployment statistics are some of the most important and widely used data sources for local analysts and public officials to gauge the health of their state’s economy. We find statistically significant seasonal patterns in the state level seasonally adjusted Local Area...