“…The authors will address this issue by dividing the profit rates and wage rates into two parts, from which one is used as the measure of economic efficiency. The uniform profit rate can be divided between the share of profits (Π) within the NI (Π/NI) and the relationship between NI and K (Weisskopf, 1979;Moseley, 1988;Duménil & Lévy, 2002;Wolff, 2003;Caselli & Feyrer, 2007;Ferreira, 2011;Chou, Izyumov, & Vahaly, 2016). Using the same logic, the wage rate (W/L) can be divided between the share of wages (W) in NI (W/NI) and the relationship between NI and L. Relations between NI and K and the NI and L are indicators of capital efficiency and labour force productivity.…”