?url_ver=Z39.88-2004&rft_id=10.1080%2F17487870.2025.2463660&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Crampes&rft.aufirst=Claude&rft.date=February+2025&rft.issn=1748-7870&rft.atitle=Efficiency+vs.+distributional+concerns+in+regulatory+sandboxes&rft.title=Journal+of+Economic+Policy+Reform&rft.pages=1-26&rft.genre=article