Born in Barcelona, Ballvé trained first as a lawyer, took his doctorate in Madrid, and then proceeded for further study first to Berlin and then to London. It was in England that, with a seasoned juristic background, he first specialized in the study of economics. He is the author of Essentials of Economics (1963).
Ludwig von Mises: "Interest is the difference in the valuation of present goods and future goods; it is the discount in the valuation of future goods as against that of present goods." - Planning for Freedom