• Curve J is an economic theory according to which the trade deficit will first worsen after the depreciation of the currency.

  • Nominal trade deficit initially widens after devaluation as export prices rise before quantities can correct.
  • Then, as volumes adjust, imports increase while exports remain unchanged, and the trade deficit shrinks or turns into a surplus, forming a “J”.
  • The J-curve theory can be applied to areas other than trade deficits, including private equity, medicine, and politics.