How does devaluing toman any more than it is now help anything? 5 years ago one $ was about 1000 toman. It is now triple that. What problem did it solve? If your theory were correct we'd have seen something by now. A cheap Rial can only help non-oil exports but those exports play a minor role in Iran's economy.
Artificially High means this: The Central Bank is bringing Tons of Foreign Currencies into Exchanges and sells them way below the Bid Price.
This means the following: since ten years ago an average Iranian worker salary has nearly gone up by 8-10 folds.
This means that if you wanted to export say Persian carpets your cost (let's just say it is labor) has nearly gone up by 8-10 folds.
but the amount that you can sell this product for in the foreign markets has increased only by 4 Folds.
That's because The dollar is now traded at 3200 Toomans and back in 1998 it was traded at 800 Toomans.
That is precisely why the Chinese do not allow their currency to float. Because if they allow it to float it will
trade at much a better premium than it is today which really hurts their exports.
This is exactly why Germany is willing to subdivide countries like Greece, Portugal, Spain and Italy issues. Because if they left the EU
the Euro will become overvalued and thus hurt German exports.
Non-Oil Exports had reached the 8-9% mark during early Khatami administration. But now it can hardly reach 1%.