@The Eagle
The only thing Pakistan has to watch out is smuggling. There is a very small economy present in Afghanistan. Most of their population is too poor and dislocated to become a proper market. Most of the goods Afghanistan import are "duty free".
Many of Afghan government officials and warlords are involved in this. These duty free goods find their way into Pakistan through various smuggling routes.
Some years back there was a report on Afghan transit trade and its associated smuggling.
They picked up examples of few goods like LCDs and tyres.
Afghanistan imported more then 50000 LCDs. It is a strange and ridiculously large number for a country like Afghanistan. It was clearly an example of parallel economy via smuggling.
Other was of tyres, if all the cars and trucks registered in Afghanistan change their tyres every day, even then the number of tyres imported by Afghanistan are more then that..
When Pakistan tries to put duties on Afghan transit trade goods so to secure itself from this huge loss, Afghans cry wolf,,,
Open the route for Indians, see what will happen. The goods which are now smuggled via Dubai will reach direct;y from Amritsar. Result will be disastrous for already ailing industry of Pakistan.
So these are very sensitive issue for Pakistan economy. Sadly our government and bureaucracy is not capable to tackle this matter. Their should be restrictions and duty mechanism as such, which will leave smuggled goods not capable to penetrate Pakistan market. After that open Indian-Afghan trade, then you will see the red faces of Indians and Afghans.
One other issue is our porous border with Afghanistan.
Time window is getting shorter for us. We will have to get our acts together real fast, if we want to be on winning side in this economic war.