Highlights • A comprehensive granular account of the rate of technological change. • Predicted improvement rates for 1757 domains containing 97.2% of US patent system. • Improvement rates are not uniformly distributed across and within categories. • Fastest improving domains are predominantly software-related. • Online system for searching domains and improvement rates based on keywords. https://www.sciencedirect.com/science/article/pii/S0048733321000950
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