Productivity depends on may factors 
depends on globalization
itr depends on the cost of living of surroundings
it depends upon the quality of products
it depends on finantial position of the state
it also depends on the cost of living
it also depends on state tax
like sales tax
Taking advantage of new opportunities in foreign markets, corporations have built foreign factories and established production and marketing arrangements with foreign partners. 
from central,its the tax
also it also depends on may factors
its demand increases with respect to people demand and international market
it depends on the surroundings and depends on company wheter they are to be more commertila or not
we can observe these situations during world wars
and when there is a trade or commertial exchange between countriesEg between us and pakistan recently
us providing army equipment to attack terrorism
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