https://aifaultline.com/authors/mert-demirer/New papers by Mert Demirer in the AI Fault Line guide, and news naming them. https://empiricrafting.substack.com/p/is-ai-replacing-programmers-or-boostinghttps://empiricrafting.substack.com/p/is-ai-replacing-programmers-or-boostingMon, 27 Jul 2026 00:00:00 +0000The Justified Posteriors podcast (Andrey Fradkin) discusses a new paper by Mert Demirer, Leon Musolff and Liyuan Yang, 'Writing Code vs. Shipping Code', which estimates how successive generations of AI coding tools affect software production productivity. https://aifaultline.com/research/p/title-daa71d8fc2d188be/https://aifaultline.com/research/p/title-daa71d8fc2d188be/Sun, 14 Jun 2026 00:00:00 +0000 https://aifaultline.com/research/p/doi-10-2139-ssrn-4945566/https://aifaultline.com/research/p/doi-10-2139-ssrn-4945566/Mon, 01 Jan 2024 00:00:00 +0000Reports on three separate field experiments (at Microsoft, Accenture, and a Fortune 100 firm) measuring how GitHub Copilot access affects software developers' output, finding sizable increases in completed tasks per week that are largest for less-experienced programmers. As one of the largest employer-scale randomized trials of a generative AI coding tool to date, it adds enterprise-level evidence to the debate over whether AI narrows or widens skill gaps among workers. https://aifaultline.com/research/p/doi-10-48550-arxiv-2302-06590/https://aifaultline.com/research/p/doi-10-48550-arxiv-2302-06590/Mon, 13 Feb 2023 00:00:00 +0000A controlled experiment with recruited developers building a JavaScript HTTP server found that those with GitHub Copilot access finished the task 55.8% faster than a control group without it, with especially strong effects for less experienced programmers. It remains one of the most-cited direct measurements of an AI coding assistant's productivity effect and is frequently used as a benchmark figure in broader estimates of AI-driven productivity growth.