可唔可以教我...
Suppose the importiong econmy reduce the effective
quota on the quantity of garments imported.
With the aid of a diagram, explain under what condition the
total expenditure of this econmy on imported garmets would decrease.
我睇埋ans都唔明...
點解個ans會將quota S shift left?supply decrease?
reduce quota 唔係令supply升咩?!