How would Europe benefit economically from greater unity?

How would Europe benefit economically from greater unity? ... The formation of the European Union accelerated economic growth in Europe because trade barriers were reduced, allowing goods, workers, and capital to move freely according to market demands.

Explanation:

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pope john paul ii ( his real name is karol wojtyla) and lech walesa ( the leader of the solidarity movement ) were both born in poland.

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.