Originally Posted by
Spectator
skpanda,
Some thoughts to consider.
I think it is very difficult to estimate porting.
The change in Inventory numbers is only the NET change and doesn't necessarily reflect the GROSS numbers.
Your calculation assumes that the Inventory is static and includes all cases that USCIS has.
It was quite noticeable with EB3-ROW that new cases were being added as they moved through PD2006.
The reduction of 1.6k can equally be :
0 additions minus 1.6k porting cases or
3.4k additions minus 5.0k porting cases
In each case, the net reduction is 1.6k. It is not possible to tell if either are true.
A slightly different example.
In FY2011, the EB3-I Demand Data reduced by 6.0k. EB3-I actually received 4.0k so the difference was 2.0k. In the PDs where approvals could be made, the demand only lowered by 3.6k, so there were at least 0.4k cases approved additional to the initial demand.
Looking at EB2-I, the demand reduced by 17.9k. EB2-I actually received 24.0k so the difference was 6.1k. The Cut Off Dates were static for 8 months in FY2011. Certainly some of the extra approvals are probably due to new cases submitted late in FY2011 and approved, but they would have to have been adjudicated very quickly.
It is a hard nut to crack.