Retailers have an incentive to stock high levels of  They want both to provide sufficient display stock to attract customers'empty shelves are not inviting'and to have products available for those who wish to purchase them.
( Retailers ( ( have ( an ( incentive ( to ( stock ( ( ( high levels ) ( of They ) ) ( want ( both ( to ( ( provide ( sufficient ( display stock ) ) ) ( to ( attract ( customers ( 'em ( pty ( shelves ( ( are not ) ( ( inviting ` ) ( and ( to ( have ( products ( available ( for ( those ( who ( wish ( to ( purchase them ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Retailers)) (VP (VBP have) (NP (DT an) (NN incentive) (S (VP (TO to) (VP (VB stock) (SBAR (S (NP (NP (JJ high) (NNS levels)) (PP (IN of) (NP (PRP They)))) (VP (VBP want) (S (VP (DT both) (TO to) (VP (VB provide) (NP (JJ sufficient) (NN display) (NN stock)) (S (VP (TO to) (VP (VB attract) (NP (NP (NNS customers)) (SBAR (S (NP (PRP 'em)) (VP (VBP pty) (SBAR (S (NP (NNS shelves)) (VP (VBP are) (RB not) (VP (VBG inviting) (`` `) (S (NP (NNP and)) (VP (TO to) (VP (VB have) (S (NP (NNS products)) (ADJP (JJ available) (PP (IN for) (NP (NP (DT those)) (SBAR (WHNP (WP who)) (S (VP (VBP wish) (S (VP (TO to) (VP (VB purchase) (NP (PRP them))))))))))))))))))))))))))))))))))))) (. .)))
Retailers are not incentivized to attract customers with stock, thereby making high stock levels irrelevant.
( Retailers ( ( ( ( ( ( are not ) incentivized ) ( to ( ( attract customers ) ( with stock ) ) ) ) , ) ( thereby ( making ( ( high ( stock levels ) ) irrelevant ) ) ) ) . ) )
(ROOT (S (NP (NNS Retailers)) (VP (VBP are) (RB not) (ADJP (JJ incentivized)) (S (VP (TO to) (VP (VB attract) (NP (NNS customers)) (PP (IN with) (NP (NN stock)))))) (, ,) (S (ADVP (RB thereby)) (VP (VBG making) (S (NP (JJ high) (NN stock) (NNS levels)) (ADJP (JJ irrelevant)))))) (. .)))