Why do banks advertise APY to their depositors while credit companies advertise APR to their borrowers?

Financial institutions like banks often tout their credit products using APR since it seems like borrowers end up paying less in the long run for accounts like loans, mortgages, and credit cards.1

Credit companies and Investment companies generally advertise the APY they pay to attract investors because it seems like they'll earn more on things like certificates of deposit (CDs), individual retirement accounts (IRAs), and savings accounts. Unlike APR, APY does take into account the frequency with which the interest is applied—the effects of intra-year compounding. This seemingly subtle difference can have important implications for investors and borrowers. APY is calculated by adding 1+ the periodic rate as a decimal and multiplying it by the number of times equal to the number of periods that the rate is applied, then subtracting 1



Here's how APY is calculated:

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.  

answer; specific deterrence;