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Meaning of supply-side

sup•ply-side

Pronunciation: (su-plī'sīd"), [key]
— adj. Econ.
  1. of or pertaining to a theory that stresses the reduction of taxes, esp. for those of higher income, as a means of encouraging business investment and growth and stabilizing the economy.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.