The purpose of this study was to classify unemployment by clearly defined, objectively measured categories which produced a consistent, empirical model identifying the structure of unemployment in Texas during the period 1973 to 1978. The models employed univariate hierarchical regression of Texas montly unemployment rates and changes in unemployment rates on measures of seasonality, cyclical fluctuations, the match of qualified applicants to available openings, and the interaction of these terms. The results of these models were reported.