A very deep analysis on your part regarding role of SBP. Few people understand the actual role of SBP ( summarized in your statement perfectly)
SBP is doing exactly what you said. In Pakistan there has never been a more professional SBP team doing what they are supposed to do. Making use of tools at their disposal perfectly (currency, intervention and policy rate). Basically fight the volatility, speculation and make the transition subtle ( both ways appreciarion/depreciation).
They didn't let the currency appreciate (at one point just on market our REER crossed 100 in March and that level was unsustainable so depreciation was on cards) and also didn't let the currency depreciate on auto and intervined ($1.2b, which has stopped in the recent week as sentiment and speculation is dying) and to subtle the impact not manipulated the outcome ( fought against developing Afghan situation, international commodity inflation cycle and resulting speculation especially in the backdrop of IMF negotiation) maintained a supportive REER value. ( REER value fell to 94-96 in October).
Now our currency is very close to where it should be given our macros. In the range of 165-170 ( our currency will be perfectly placed at 96-98, making an ideal environment for local industrialization and exports negating the effects of higher energy ( electricity) prices. We have cheaper gas and diesel)
Yes I know the swings in REER value are on a higher side (+/- 3) but this has more to do with Pakistan not been a mature market ( just a few years on market based currency), Capacity of state Bank to regulate and the holistic unprofessional market to deal with where speculation triumph indicators.
If we were to truely analyse currency, it should be seen in sufficient time frame ( that's what investors or businesses look at). From
2019 to 2021 that comes at around ~5%. From
October 2020 to October 2021 ~6%. The sudden depreciation when we moved from away fixed and subsequent currency catching up can easily be explained.
From 2013-2021 5-6%.
Every developing world currency not artificially fixed depreciates against developed country. The only way to make it more stable and in line with currencies of e.g. India and Bangladesh is to increase your dollar earnings ( stability in macros).