"This study analyzes the relationship among plant-level measures of industrial relations performance, economic performance, and quality-of-working-life programs. The analysis employs pooled time-series and cross-section data from 18 plants within a division of General Motors for the years 1970-79. The empirical results show strong associations between industrial relations and economic performance measures and limited support for the hypothesis that quality-of-working-life efforts improve both kinds of performance."