answer the following True/False question based on the graphs, briefly explain

Higher concentration ratios are indicative of less competition/contest ability and here greater inefficiency and a higher margin.

FRED - Net Interest Margin for all U.S. Banks (DISCONTINUED) Bank's Net Interest Margin for New Zealand - Bank's Net Interest Margin for China 45 40 3.5 Percent 30 25 2.0 1.5 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Shaded areas indicate U.S. recessions Sources: FFIEC, SL Louis Fed World Bank fred.stlouisfed.org FRED Bank Concentration for United States Bank Concentration for New Zealand Bank Concentration for China 80 70 60 Percent 50 40 30 20 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Shaded areas indicate U.S. recessions Source: World Bank fred.stlouisfed.org