Hygro
soundcloud.com/hygro/
I'm trying to, but you're going in a circle, so let me help you help me answer you.I already told you 3 times.
It's clear you're not going to answer the question.
The economy is made up of 3 things:
people (labor or "human capital")
stuff (physical capital, infrastructure, goods, resources)
money (the agreement with which we organize the people and the stuff)
In your example you have 500 people who can be labor. But 300 of them cannot because of a limitation. We know the limitation cannot be because there are 300 too many, that's just circular. Therefore the problem must be coming from "stuff" or "money".
If the problem is money it we aren't financing the extra 300 jobs. This is the definition of a recession and an artificial lack of demand. It means we could have 500 jobs but don't because we're choosing not to.
If the problem is stuff, we have a bigger problem on our hand but then you have to justify how we have a stuff problem IRL. HINT: you can recognize a stuff problem via inflation. The 70s inflation being caused by a shortage of oil being the most obvious example.
So in your model, what's preventing the job market from accommodating the extra 300 engineers?
Then we can move forward.