Assertion: price's value | /r/HasProperty | exchanged for equal values
Facets:
value: always
type: TEMPORAL
Source sentences:
text: This problem must be solved, and it must be solved in a purely economic way, excluding all cheating and the intervention of any force — the problem being: how is it possible constantly to sell dearer than one has bought, even on the hypothesis that equal values are always exchanged for equal values?