Passage:
For over two decades following the commercial introduction of central electric power stations in the 1880s, manufacturing productivity across industrial economies exhibited surprisingly negligible growth, presenting what economic historians refer to as an early productivity paradox. Standard neoclassical frameworks had predicted that replacing centralized steam engines with electric power would promptly yield measurable operational efficiencies. However, historian Paul David demonstrated that meaningful productivity surges materialized only in the 1920s, after industrial infrastructure underwent a fundamental conceptual and physical redesign.
Initially, factory owners executed a simple capital substitution: replacing a single large steam engine with a large central electric motor while retaining the legacy network of overhead line shafts, belts, and pulleys to drive machinery throughout the plant. Consequently, early electrification failed to alter the spatial constraints or workflow bottlenecks inherent to steam-era factory layouts. It was not until plant managers abandoned this legacy architecture in favor of unit-drive systems—equipping individual machines with independent electric motors—that dramatic efficiency gains occurred. This structural transformation liberated factory layouts from the mechanical imperative of grouping heavy equipment near central shafts, enabling single-story, horizontal designs optimized for continuous material flow. Ultimately, David’s historical analysis underscores that major technological innovations rarely generate immediate aggregate productivity leaps until accompanied by radical organizational restructuring and complementary process redesigns.
Statement: The primary purpose of the passage is to demonstrate that realizing the full economic benefits of a major technological innovation depends upon complementary organizational and structural redesigns.
Answer: Answer