The last step of the derivation, in which the absolute value of the elasticity of imports is taken, is obviously mathematically incorrect. It doesn't follow from the preceding step at all. Can someone more knowledgeable about this than I correct it?
Devaluation and depreciation
Well i would think that the term devaluation is appropriate for exchange rates in a fixed exchange rate regime while the term depreciation would be appropriate in a floating exchange rate regime.
I would like to make some changes to this article, do I need some kind of approval? I'd actually first like to know what you mean by saying that p = international prices.
Prices at which goods are exchanged in international markets. —Preceding unsigned comment added by Klapton (talk • contribs) 12:12, 2 September 2007 (UTC)
About what is above: 'depreciation' is used whenever the exchange rate is flexible (and in general too) while 'devaluation' implies an official decision, ie when the exchange rate is fixed
Other point: the page exists in French, but there is no link "condition de Marshall-Lerner". I don't know how to fix it —Preceding unsigned comment added by 184.108.40.206 (talk) 18:44, 17 May 2009 (UTC)