You said:
"...Serbian goods are already available throughout Europe. Anyway, I don't see what Mladich and Karadzich -- citizens of Bosnia -- have to do with Serbia and its economy..."
One banal example - I can walk into a liquor store here in Canada and buy Serbian wine whenever I want to.
Serbia's "Simpo" (furniture manufacturer) has just opened a showroom in Toronto. They have offices in 40 countries and as much as 40% of their furniture is manufactured for foreign markets. Serbia is the world's largest exporter of frozen berries. The main importer? The European Union. Serbia's foreign trade deficit has been slashed by 38% compared to the same period last year. Italy's Fiat is negotiating with Zastava for a joint venture (Fiat "Punto" might soon be rolling off Serbian assembly lines in Kraguyevats). Examples are too numerous to list; these are just off the top of my head.