Fig. 2.

ICERS with and without productivity costs. ICERS from: (a) Lindgren et al. [46] (b) van den Hout et al. [33] (c) Davies et al. [41] (d) Kobelt, Sobocki et al. [48] (e) Kobelt et al. [37] (f) Kobelt et al. [43] (g) Boonen et al. [53] (h) Kobelt, Andlin-Sobocki et al. [43] (i) Kobelt, Eberhardt et al. [49] (j) Kobelt et al. [50] (k) Wong et al. [44] (l) Lidgren et al. [54] (m) Norum et al. [52] (n) Kobelt et al. [51] (o) Manns et al. [45] (p) Maniadakis et al. [36] (q) Walsh et al. [33] (r) Norum & Holtmon [34]