definetly YES. My science outpost successivley rose from 1.0 Hightec to 2.15 Hightec by building Science & Hightec Hubs on the surface
GREAT!
I wonder though would the outpost's market be any better than a commercial/civilian outpost's (which would read 1.15 High tech in your example with Science & hightec hubs on the surface)?
Also does this give us a hint at intentions?
If the 'fixed' econ stations can get a boost to their 'fixed' economy, but no influence from installations which give other economic influences, then I think one feature I hoped could be, potentially, an end goal for planetary influence feature maybe what they have in mind!
When we saw it planetary influence worked just like the econ influence of an installation. So whether we wanted it or not, our colony stations were influenced by it. But, it could eventually be implemented differently so it works more like with 'fixed' econ stations. They could do this by making it a multiplier to the economic influence of nearby installations, instead of direct economic influence.
So if we take this set up as a thought experiment:
Rocky body, with atmos and biological signals, 2 refinery hubs + Orbis orbital.
Planetary influences were: 1.15 refinery, 1.15 Agriculture
In the old way, just rolled back, the economy of the Orbis would have been around 2.05 refinery and 1.15 agriculture.
But if the planetary influence is reworked as an influence multiplier then:
Planetary multiplier: 1.15 refinery, 1.15 argi
Orbis economy= Refinery 1.10 argi = 0.
If I then built a space farm in orbit and then it would be refinery 1.10 and agriculture 0.65 (0.5 from the t1 installation * multiplier 1.15)
On non-landable planets they would work as direct economic influence instead of a multiplier (pretty sure this was the end state of the feature which was accidentally 'released early')
Anyway I should stop speculating!