Furthermore, these log values seem to indicate a range from 0 to 1 for each economy type. The 0.50 and 0.50 split in the first scenario doesn't appear to be simple percentage weights. It looks like we're dealing with a more complex system for determining the dominant economy.
It's not capped at 1 - my T1 Industrial orbital has "Industrial: 1.15" and that's stayed constant since it was built. I haven't put anything else near it yet.
From my experiments on pre-colonisation economies, which almost always have the totals sum to 1 but there are a few exceptions:
- 1.0 represents the normal "productivity" of that station, given its population and other factors (e.g. system wealth, security, whichever turn out to matter)
- so 0.9+0.6 gives you a station which is at 1.5 total production. This should be most clear on the relative size of commodities like Silver, H-Fuel, etc. which both Refinery and Extraction produce, or ones like Power Generators they both consume, though likely masked by a lot of internal variations between commodities ... and by none of our stations likely having "normal" production because of the system property effects
(Essentially, they're
supposed to be percentages, but there are cases - a lot more common with colonisation - where what they're of is more obviously not "percentage of total productivity" but "percentage of baseline productivity")
Looks from those figures that Settlements are more effective than Hubs for changing economy type, larger Settlements are more effective than smaller, and T3 Ports have a lot more "inertia" than T1 Ports to clear out that initial Colony type.
(It may even be that hubs don't influence T3s at all and only settlements do, looking at that data?)