Luxury

Luxuries are commodities that exist solely as vendor trash (and occasional upgrade material). These are robust and reliable sources of income. All luxuries are stockpiled and sold as civilian goods via the exchange.

Production efficiency of luxury items is according to the average of the three 3 region parameters infrastructure, industry, farming. (source: https://steamcommunity.com/app/896160/discussions/0/1843566500517792773/#c1843566500528827904)