Answer
Resource scarcity
The paperflamen company is facing lack of trees which in turn creates scarcity of paper. This indicates the company has lack of the essential elements required in production known as resources. The definition of resource scarcity states the lack of availability of necessary supplies of manufacturing or production
The situation of paperflamen doesn't fit other terms
Punctuated equilibrium means a theory in which species evolution is studied and written in specific characterised pattern. .
Discontinous change
It means a change that happen all of sudden and destroys the exciting structure
Buyers dependence
It means the production is dependent on demands of buyers .
The situation mentioned in question fits only resource scarcity as they are facing shortage of trees