Nevertheless, they do not constitute an economic inefficiency per se but are part of the usual dynamic adjustments in a market economy. As mentioned above, the price mechanism allows a reaction by the affected parties and thus avoids the absence of a possibility to respond to a one-side impact that is typical for external or social costs. Taking the example described above, the deployment of a same amount of VRE on a pure market basis would impose the same revenue shortfall to incumbent power generation, but in this case, this would constitute a pecuniary externality and not constitute an economic inefficiency.