Access to timely and credible price information is critical for smallholder farmers operating in thin and fragmented markets. This study examines the welfare impacts of public agricultural price infomaton disseminated via plasma screens instailled by th Ethiopian Commodity Exchange (EXX(. Leveraging spatial and temporal variation in the phased roll-out of 101 plasma screens across Ethiopia as a quasi-experiment, we employ a generalise difference-in-differences strategy, with distance to the nearest scrren as a proxy for the costs of price information frictions. We find that halving the distance to the nearest screen significantly increases average real per-capita crop income from ECX-traded crops by 4 per cent. The gains are even larger, about 7.5 [er cent, for coffee and sesame, the two most actively traded commodities on the exchange, with effects growing over time. The primary mechanisms identified include higher crop prices for EXC-traded crops and increased land allocation towards these commodities. WE find only modest spill-over effects (0.5%) on imcome from non-ECX crops. Our findings highlight the role of credible public price information in reducing information asymmentries and enhancing smllholder productivity. Read more>>