What does the gross domestic product measure?

GDP is a monetary measure of the market values of all the final goods and services produced in a period of time, often annually or quarterly. They’re commonly used to determine the economic performance of a whole country or region, and to make international comparisons.

Explanation:

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.