How did advertisements affect consumers in the post wwi years

Consumers were encouraged to shift from making rational, fact-based decisions towards choices based more on emotional impulses. This sense that you were buying something beyond the physical product and creating an emotional bond with inanimate goods was well developed by the time of the First World War, and was used to good effect.

Explanation:

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a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

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.