The recent 14% hike in third class postage rates, accompanied by simultaneous double-digit paper price increases, has hit smaller catalogers especially hard.
Smaller catalogers are hit harder than bigger ones.
It states "has hit smaller catalogers especially hard." therefore given the context smaller catalogers are hit harder than the bigger ones.
( z1 hit :ARG1 ( z2 person :ARG0-of ( z3 catalogue ) :ARG1-of ( z4 have-degree :ARG2 ( z5 small ) :ARG3 ( z6 more ) :ARG4 ( z7 one :ARG1-of ( z8 have-degree :ARG2 ( z9 big ) :ARG3 ( z10 more ) :ARG4 z2 ) ) ) ) )