https://aifaultline.com/authors/anika-singh/New papers by Anika Singh in the AI Fault Line guide, and news naming them. https://aifaultline.com/research/p/doi-10-34218-ijeco-03-01-003/https://aifaultline.com/research/p/doi-10-34218-ijeco-03-01-003/Mon, 22 Jun 2026 00:00:00 +0000Using a difference-in-differences design on global freelance platforms, this study finds generative AI compresses the productivity gap between novice and expert cognitive workers—lowering the skill premium and entry-level wages in coding, technical writing, and design—while raising the value of human-in-the-loop supervision and strategic work; it also models the elasticity of substitution between human judgment and algorithmic output. This is direct quasi-experimental evidence for the leveling-vs-displacement question, and its implication that junior-role automation breaks internal promotion ladders is central to debates about how firms will rebuild talent pipelines.