Stigler, “The Early History of Empirical Studies of Consumer Behavior”, Journal of Political Economy 62, 1954, 95–113; G. Del Vecchio, “Relazioni fra entrata e consumo”, Giornale degli economisti 54 (n.s. ), 1912, 111–142, 228–254, 389–439. Del Vecchio did not use Italian data, because individual budgets were relatively scarcer for Italy than for France or Germany.
However, Giovanni Vecchi has recently dug out as many as 11,500 individual budgets for the period 1855–1911, plus another 9,500 for the years until 1965. See S. Chianese e G. Vecchi, “Bilanci di famiglia”, in G. Vecchi, In ricchezza e in povertà. Il benessere degli italiani dall’Unità a oggi, Bologna, Il Mulino, 2011, 355–389.