If permits are auctioned, there is no problem because everyone can buy them anywhere, but if policies target certain industries or sectors and those sectors are granted a certain proportion of the permits, we will have to determine the emissions level by industry and grant a certain number of permits. To answer your question, I would say that it depends on the structure of the policy mechanisms that we seek to implement. If they are mechanisms through which we establish targets for certain industries, they have to be applied across the country. If that kind of approach is not used, and if we choose a much more global perspective, it will not be necessary for industries or sectors to adopt individual targets because the distribution in the effort to reduce emissions will be done in accordance with the cost of reducing emissions from one sector to another.
On November 26th, 2009. See this statement in context.