i tried to explain this in an earlier post in this thread.
$ getting expensive in iran by itself is not going to lead
to economic meltdown or protests.it's a tool the gov is
using to put an extra tax on the rich who can afford to buy
$.it makes imported and luxury items more expensive for the rich.
what we need to watch is the inflation rate to see if this policy
has an impact on the masses.so far it seems not to have
any massive effect on that front.in the past 2 years $ has
gone up from 3000 to 5000 that's a 67% increase which is
clearly not reflected in the inflation rate since iran is self sufficient
in producing many basic items so they have been able to tame inflation.
note that the year to year inflation rate has actually declined in the past
year as rial kept getting devalued.
it seems to me the idea is to increase the price of imported goods as much
as they can so people start buying iranian made products as the recent
propaganda is urging them to do so.in other words soon even junk chinese
stuff will be too expensive to buy and people will turn to buying iranian made
appliances and small house hold items,etc.that's not a bad policy if it succeeds
in increasing employment and revive the manufacturing base of the economy.