Shogun: Total War Now

: Doubles the amount of trade goods provided and significantly increases commerce wealth.

For a deeper look at managing province specializations and buildings like Paper Mills, check out this overview of the strategy mechanics: Shogun: Total War

: Build Paper Mills in provinces that are far from the front lines where you don't need high-tier ranged units, focusing purely on boosting your economy. : Doubles the amount of trade goods provided

Upgrade to (or the alternative, Fletchers, which focuses on bow accuracy). Benefits : Shogun: Total War

: For the Ikko-Ikki clan, upgrading the Artisan in Echizen to Paper Mills is a standard opening move to secure early profit.

In Total War: Shogun 2 , Paper Mills are a specific building upgrade path for provinces with the specialty resource.