WP - 2026-10-23 - Severin Joho and Enzo Rossi: The evolution of frequency, language complexity and policy narrative: benchmarking Python-based NLP and ChatGPT on a century of SNB rhetoric

We compiled and processed a novel, comprehensive dataset of 1,063 speeches delivered by high-ranking Swiss National Bank officials between 1928 and 2024. Beyond tracking their quantitative evolution, we conducted an in-depth analysis of the length, readability and thematic…