In 1909, aged 16, he was injured during the events of Barcelona’s Tragic Week (in which Francisco Ferrer Guardia was shot as the supposed ringleader of the disturbances).
He later emigrated to Argentina where he worked as a baker, then lived for a short while in the United States where he learned English. Returning to Spain he worked for a time in his father’s inn and as a baker, later a car salesman. His first venture into studying international economics came at the International Trade Centre in Barcelona, which he ran from No 12 Calle Fontanera in Barcelona. Here Fabregas studied the markets, acting as a business consultant and advising on exports and business reports. By the mid-1920s such theoretical and practical financial and economic activities had turned him into an expert consultant and advisor. He ran and published a subscription-based economic and trade review, entitled El Productor.