Beginning in the 1970s, retailers expanded their offshore sourcing efforts, especially after quality standards improved, establishing sourcing offices and relationships in low-wage countries, particularly in Asia.
( ( Beginning ( in ( the 1970s ) ) ) ( , ( retailers ( ( ( ( expanded ( ( their ( offshore ( sourcing efforts ) ) ) ( , ( especially ( ( after ( ( quality standards ) improved ) ) , ) ) ) ) ) ( ( ( ( establishing ( sourcing ( ( offices and ) relationships ) ) ) ( in ( low-wage countries ) ) ) , ) particularly ) ) ( in Asia ) ) . ) ) ) )
(ROOT (S (PP (VBG Beginning) (PP (IN in) (NP (DT the) (NNS 1970s)))) (, ,) (NP (NNS retailers)) (VP (VBD expanded) (NP (NP (PRP$ their) (JJ offshore) (VBG sourcing) (NNS efforts)) (PRN (, ,) (ADVP (RB especially)) (SBAR (IN after) (S (NP (NN quality) (NNS standards)) (VP (VBD improved)))) (, ,))) (S (VP (VBG establishing) (NP (VBG sourcing) (NNS offices) (CC and) (NNS relationships)) (PP (IN in) (NP (JJ low-wage) (NNS countries))) (, ,) (ADVP (RB particularly)))) (PP (IN in) (NP (NNP Asia)))) (. .)))
After quality improved in Asia, retailers sourced their products in low-wage countries.
( ( After ( quality ( improved ( in Asia ) ) ) ) ( , ( retailers ( ( ( sourced ( their products ) ) ( in ( low-wage countries ) ) ) . ) ) ) )
(ROOT (S (PP (IN After) (NP (NP (NN quality)) (VP (VBN improved) (PP (IN in) (NP (NNP Asia)))))) (, ,) (NP (NNS retailers)) (VP (VBD sourced) (NP (PRP$ their) (NNS products)) (PP (IN in) (NP (JJ low-wage) (NNS countries)))) (. .)))