Because a reduction in the I/S ratio means that changes in sales will be matched by a smaller change in inventories, a lower ratio also implies lower inventory volatility.
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(ROOT (S (SBAR (IN Because) (S (NP (NP (DT a) (NN reduction)) (PP (IN in) (NP (DT the) (NNP I/S) (NN ratio)))) (VP (VBZ means) (SBAR (IN that) (S (NP (NP (NNS changes)) (PP (IN in) (NP (NNS sales)))) (VP (MD will) (VP (VB be) (VP (VBN matched) (PP (IN by) (NP (NP (DT a) (JJR smaller) (NN change)) (PP (IN in) (NP (NNS inventories))))))))))))) (, ,) (NP (DT a) (JJR lower) (NN ratio)) (ADVP (RB also)) (VP (VBZ implies) (NP (JJR lower) (NN inventory) (NN volatility))) (. .)))
A lower I/S ratio results in lower inventory volatility and changes in sales will result in smaller changes in inventories.
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(ROOT (S (NP (NP (DT A) (JJR lower) (NN I/S) (NN ratio) (NNS results)) (PP (IN in) (NP (NP (JJR lower) (NN inventory) (NN volatility)) (CC and) (NP (NP (NNS changes)) (PP (IN in) (NP (NNS sales))))))) (VP (MD will) (VP (VB result) (PP (IN in) (NP (NP (JJR smaller) (NNS changes)) (PP (IN in) (NP (NNS inventories))))))) (. .)))