1 “...Competitiveness and carbon leakage issues have been some of the main concerns in the implementation...”

2 “... limited use of credits would nearly halve mitigation costs; cost savings would be largest for carbon...”

3 “... savings would be largest for carbon-intensive economies. However, one open issue is whether these gains...”

4 “... towards carbon neutrality. It outlines results from a Net-Zero Emission Ambition scenario, which reflects...”

5 “... barriers to the development of an international carbon price, based on the quantitative assessment from two...”

6 “... (or 400 billion USD) if mitigation actions are achieved through market instruments such as carbon taxes...”