If the region gets the impression the EU is "not serious" about enlargement, it could again experience "what we had in the Balkans during the 1990s," European Commission president warns.
World Bank charts faster growth rate but warns surge in untargeted social spending and public wages heightens fiscal vulnerability in the longer-term.
Mass boycott of referendum that puts Macedonia's EU future in doubt should be seen as a "final warning" that the EU needs a more serious approach to enlargement, says Milo Djukanovic.
Creating a regional economic zone is seen as a way to boost trade and investment and has been strongly encouraged by EU officials.
After a severe drought caused hydropower generation to slump in the Western Balkans last year, the latest data show a sharp rebound in hydroelectricity production in the first half of 2018.