One possible explanation is that surging household wealth in recent years contributed to the virtual disappearance of personal saving.
( ( One ( possible explanation ) ) ( ( is ( that ( ( ( surging ( household wealth ) ) ( in ( recent years ) ) ) ( contributed ( to ( ( the ( virtual disappearance ) ) ( of ( personal saving ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (CD One) (JJ possible) (NN explanation)) (VP (VBZ is) (SBAR (IN that) (S (NP (NP (VBG surging) (NN household) (NN wealth)) (PP (IN in) (NP (JJ recent) (NNS years)))) (VP (VBD contributed) (PP (TO to) (NP (NP (DT the) (JJ virtual) (NN disappearance)) (PP (IN of) (NP (JJ personal) (NN saving))))))))) (. .)))
People are putting what would've been their personal savings into displays of wealth more often in recent years.
( People ( ( are ( putting ( what ( would ( 've ( ( ( been ( their ( personal savings ) ) ) ( into ( displays ( of wealth ) ) ) ) ( ( more often ) ( in ( recent years ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS People)) (VP (VBP are) (VP (VBG putting) (SBAR (WHNP (WP what)) (S (VP (MD would) (VP (VB 've) (VP (VBN been) (NP (PRP$ their) (JJ personal) (NNS savings)) (PP (IN into) (NP (NP (NNS displays)) (PP (IN of) (NP (NN wealth))))) (PP (ADVP (RBR more) (RB often)) (IN in) (NP (JJ recent) (NNS years)))))))))) (. .)))