And, at the root of this multiplicity of perspectives lays the fact that economics struggles to explain how growth and innovation move an economy as a whole. The macroeconomic models on which policymakers depend are solid tools in times of smooth and incremental evolution, but green growth is not about gradual change.
上述所有报告都采取了某种不同的研究路径并提出了各式各样的建议，也令政策制定者们如坠五里雾中。而这些预测之所以五花八门，根源就在于经济学也无法完美解释增长和创新是如何令一个经济整体向前推进的。在平稳且渐进式发展的时代，宏观经济模型是政策制定者们的可靠工具，但绿色增长却不属于渐进式变革的范畴。