However, predictability should not be mistaken for permanence. In the case of policies targeting investment in physical capital, it is important to „sunset‟ many of the policies. With time the financial market will price risk efficiently (assuming policy regimes do not generate shocks continuously) and learning benefits will be exhausted. While policies to support specific green technologies may be needed to overcome barriers to commercialisation, the design of such policies is essential to avoid capture by vested interests and ensure that they are efficient in meeting public policy objectives. Focusing policies on performance rather than specific technologies or.
