388 
BANKING STANDARDS 
the increases are not large enough to predominate over the strong 
constant tendency for net earnings to increase. 
It is thus apparent, from a consideration of the preceding five 
cases, that they are explainable principally in terms of the con- 
stant, as distinguished from the variable, part of the changes in 
net earnings ratios of banks. These constant tendencies are re- 
flected by the values of the terms K; and K, for the various 
groups.