. ▁Marx ▁claims ▁that ▁this ▁tr end ▁happens ▁" with ▁the ▁necessity ▁of ▁a ▁natural ▁law "; ▁produ cers ▁had ▁no ▁choice ▁about ▁doing ▁what ▁they ▁could ▁in ▁the ▁battle ▁for ▁product ivity , ▁if ▁they ▁wanted ▁to ▁maintain ▁or ▁increase ▁sales ▁and ▁prof its . ▁That ▁was , ▁in ▁Marx ' s ▁view , ▁the ▁" re volution ary " ▁aspect ▁of ▁capital ism . ▁ ▁Compet ition ▁among ▁produ cers ▁in ex or ably ▁gives ▁rise ▁to ▁market ▁mon opol ies ▁for ▁products , ▁which ▁may ▁const rain ▁further ▁significant ▁adv ances ▁in ▁product ivity ▁and ▁innov ation . ▁According ▁to ▁Marx , ▁mon opol ies ▁and ▁competition ▁always ▁co - exist ; ▁mon opol ies ▁in ▁the ▁production ▁of ▁goods ▁and ▁services ▁are ▁rarely ▁permanent , ▁and ▁as ▁soon ▁as ▁competition ▁is ▁blocked ▁at ▁one ▁level , ▁it ▁re app ears ▁at ▁another ▁level . ▁However , ▁Marx ▁never ▁discussed ▁all ▁the ▁different ▁forms ▁of ▁economic ▁competition ▁in ▁capital ist ▁society . ▁His ▁main ▁concern ▁was ▁to ▁explain ▁what ▁the ▁competition ▁was ▁ultimately ▁about , ▁and ▁what ▁struct ural ▁factors ▁were ▁involved , ▁from ▁the ▁point ▁of ▁view ▁of ▁the ▁production ▁system ▁as ▁a ▁whole . ▁▁ ▁The ▁negative ▁influence ▁of ▁the ▁t endency ▁of ▁the ▁rate ▁of ▁profit ▁to ▁fall ▁on ▁business ▁income ▁could , ▁Marx ▁argued , ▁be ▁overcome ▁in ▁the ▁long ▁run ▁only ▁by ▁organ izing ▁production ▁and ▁sales ▁on ▁a ▁larger ▁and ▁larger ▁scale , ▁or ▁by ▁techn ological ▁revolution s ▁which ▁reduced ▁the ▁cost ▁of