The papers in this proceedings volume were presented at the 9th international conference "The Economies of the Balkan and Eastern European Countries in the Changing World" (EBEEC) held in Athens, Greece, in April 2017. They include the scientific results of research on current issues relevant for the wider area of Eastern Europe. Authors from 30 different countries develop new ideas, covering topics such as international economies, European integration, the economic crisis, macroeconomics, banking, stock markets, education, energy, innovation, and marketing. The contributions also examine the role of the economies of the Balkan and Eastern European countries in a pan-European context.