Intensified technology convergence, increasing relatedness between technological fields, is a mega-trend in 21st century science
and technology. However, scientometrics has been unsuccessful in identifying this techno-economic paradigm change. To address
the limitations and validity problems of conventional measures of technology convergence, we introduce a multi-dimensional
contingency table representation of technological field co-occurrence and a relatedness measure based on the Mantel–Haenszel
common log odds ratio. We used Korean patent data to compare previous and proposed methods. Results show that the proposed
method can increase understanding of the techno-economic paradigm change because it reveals significant changes in technological
relatedness over time.