Are there any attirbutes/stats based on races or planets that are not obviously visable?

Most buildings/starbases are modifiers to a base figure e.g. econ +20%, military production +30% modifiers.

Does every race/planet have the same base or are they different?

Purely by guesswork it appears that there are significant racial and/or planatary variations. I.e. the Altarians seem better at research than the Yor. Am I just imagining it? Was it due the the racial differences? Was it due to the planetary differences? Does PQ have a bearing. I'd say "no" to this one as the base seems lowest on my PQ26 planet.

Does anyone know for certain, and if so what the rules are?