What happened as a result of spreading nationalism in the balkans?

What are objects called that have value in and of themselves as well as value as a means of exchange? custom commodity money currency simple money

What is the role of communication within groups of people with different backgrounds?

Globalization and technology developments have led to what some individuals have described as "flat world." what is the significance of the flat world concept? what is the impact of the flat world on supply chain requirements and strategies?