Research from Dr. Bernhard Reinsberg at the University of Glasgow and Dr. Christoph Valentin Steinert at the University of Zurich reveals how France's groundbreaking mandatory due diligence law defied business predictions of economic harm. Through analysis of 11,504 French companies over fifteen years, their study demonstrates that requiring firms to monitor human rights and environmental standards in their supply chains had no significant impact on profitability. Their findings challenge widespread industry claims that such regulations threaten competitiveness and provide crucial evidence for policymakers considering similar legislation worldwide.