The most valid conclusion concerning the breakup of the Austro-Hungarian empire was the creation of new states with political boundaries leading to trade barriers as the newly formed states started collecting tariffs to allow the goods to pass through their borders.
A series of events led to the weakening of the Austro-Hungarian empire which finally dissolved at the end of World War I. With its dissolution, the former empire was divided into several new states such as Poland, Hungary, Czechoslovakia, Romania, the Kingdom of Serbs, etc. and the new political boundaries now emerged as economic barrier.
Along with the economic changes, there were other major political, social and demographic changes in the resulting states.
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