SERIES CORRELATED WITH DEPOSITS 173 
of total deposits to earning assets are accompanied by net de- 
creases in gross and net earnings and in total expense, the net 
amounts of the decrease in these series varying directly with the 
amounts of increase in total deposits. Table 103 contains the 
detail from which these generalizations are drawn. 
TABLE 103 
CORRELATION OF YEAR-TO-YEAR PERCENTAGE CHANGES OF DISTRICT 
RATIOS IN PAIRED SERIES 
INDEPENDENT VARIABLE—Ratios of 
Total Deposits to Earning Assets 
Amount of Char: 
Direction 
Percentage 
Groups 
Average 
Jercentage 
Number 
of 
District- 
Years 
DEPENDENT VARIABLES—Net 
Average Percentage Change 
Gross 
Earnings 
to 
Earning 
Assets 
Total 
Expense 
to 
Earning 
Assets 
Net 
Earnings 
to 
Earning 
Assets 
Total 
Increase 
Decrease 
5 and over... 
1t06... 
to4... 
Thnder a 
snder 
2 to. 
$4t06... 
5 and over 
Total 
When year-to-year percentage changes of the ratios in each 
of these series are determined for districts with total deposits 
which are increasing or decreasing relative to the district posi- 
tions—high or low—occupied, it is found that (1) the average 
rate of decrease is accelerated when total deposits are high and 
increasing, and (2) the average rate of increase is accelerated 
when total deposits are low and decreasing. These rates of change 
for the three series, according to the varied conditions of total 
deposits, are summarized in Table 104. 
It is of interest to pair the variations of the ratios in. the 
series mentioned with those of total deposits when the deviations 
are taken from their respective country levels. When this is done, 
it is found that the net percentage differences from the country 
level, for both gross earnings and total expense, are positive— 
that is, the amounts are above this level—irrespective of the direc- 
tion or percentage amounts by which the total deposits, with 
which they were paired, deviate from this level. This is the rule