TY JOUR TI Measurable impacts of LLM-powered document intelligence on M&A due diligence KW M&A due diligence KW large language models KW generative AI KW document review KW retrieval-augmented generation KW efficiency KW legaltech KW mid-market transactions JO JOURNAL OF MONETARY ECONOMICS AND MANAGEMENT AU Izbassar, A.B. PY 2025 IS 0 PB ITBO University