Text: Recent research estimated that the growth in households' aggregate net worth over the 1960s and during the early 1990s was roughly equally divided between traditional saving and the increase in the nominal value of existing assets.
Entailment: In the 1960s and 1990s household net worth increased due to the increase of value of existing assets.
Contradiction: Recent research estimated that the growth in households' aggregate net worth did not change in the 1960s and 1990s.