Longitudinal Analysis of Inhibitors of Manufacturer Delivery Performance
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ABSTRACTThis article examines demand, manufacturing, and supply factors proposed to inhibit manufacturer delivery execution. Extant research proposes many factors expected to harm delivery performance. Prior crosssectional empirical research examines such factors at the plant level, generally finding factors arising from dynamic complexity to be significant, but factors arising from detail complexity to be insignificant. Little empirical research examines the factors using productlevel operating data, which arguably makes more sense for analyzing how supply chain complexity factors inhibit delivery. For purposes of research triangulation, we use longitudinal productlevel data from MRP systems to examine whether the factors inhibit internal manufacturing on time job rates and three customeroriented measures of delivery performance: product line item fill rates, average delivery lead times, and average tardiness. Our econometric models pool product line item data across division plants and within distinct product families, using a proprietary monthly dataset on over 100 product line items from the environmental controls manufacturing division of a Fortune 100 conglomerate. The data summarize customer ordering events of over 900 customers and supply chain activities of over 80 suppliers. The study contributes academically by finding significant detail complexity inhibitors of delivery that prior studies found insignificant. The findings demonstrate the need for empirical research using data disaggregated below the plantlevel unit of analysis, as they illustrate how some factors previously found insignificant indeed are significant when considered at the productlevel unit of analysis. Managers can use the findings to understand better which drivers and inhibitors of delivery performance are important.
