Why have 10000 resources? Just have 3: Food, Materials, Goods.
A region without materials has lowered productivity, while a region with lots regains productivity faster. A region without goods has lowered morale, whereas a region with a lot of goods/population gets a morale bonus.
"Lowered" stats could mean a maximum of 80%. No need for new "have or die" resources.
The presence of resources who give greater bonuses the more you have of them (unlike food, which just prevents starvation) would give traders something to do when food isn't much of an issue, without forcing anyone to really care for the new resources.
