Why reduced resources for building?

[Grandpa Kim]

Construction and production are two different things: Construction is the building of ships, units and facilities and is affected only by your initial race bonuses, level of shipyard and population. Production is the output of your facilities-- minerals, organics, radioactives, research and intelligence-- and is affected by your race bonuses, planets resource percentages, population AND happiness. A high happiness has no effect on construction.

Kim