All estimates come from the authors' explicitly preferred nonneutral-technical-change translog model reported in Table 2; no single country headline, the two-period elasticity series IS the contribution || 'In our preferred nonneutral technical change model, concavity was confirmed at almost every observation point for the latter period' (p.535); 'The estimated parameters of the model allowing for nonneutral technical change are shown in Table 1' (p.533)
Hesse, D.M. and H. Tarkka (1986): “The Demand for Capital, Labor, and Energy in European Manufacturing Industry Before and After the Oil Price Shocks.” Scandinavian Journal of Economics 88(3), 529-546