Combined with investment in physical infrastructure (i.e. interconnectors) continued progress towards forming a regional market will increase the competitiveness of all SEE economies and of the region as a whole. Sustained political will to overcome barriers to market integration will be essential if the long-term benefits to competitiveness are to be captured for the citizens of the WB6 economies. Box 12.6 explains the factors that were important for the highly successful Nordic regional electricity market, and which could offer some valuable ideas for the SEE governments.