“…In detail, the period between Italy's unification in 1861 and the outbreak of World War I (WWI) is generally defined as the ‘liberal era’, which, however, in turn, includes two sub‐periods, that is, the immediate post‐unification years (1861–1896) and the so‐called ‘Giolitti era’, named after its liberal Prime Minister Giovanni Giolitti. After WWI, the ventennio fascista (Fascist 20 years) can be broken down, as in Giordano and Giugliano (2015), into a phase of broad economic liberalization and trade openness (1919–1928) and the autarkic phase, which also included the Great Depression and recovery years prior to WWII, namely the 1929–1938 period. A similar breakdown has also been employed for the quantitative analysis of growth in other European countries during the interwar period (Feinstein et al ., 2008).…”