This is one of those things that just doesn't quite jive well with how SE V works, but here's how I'd do it with culture and technology:
Code:
Name := Doctrine - Extreme Wealth
Description := By focusing on wealth we can DIG FASTA YE GITZ
Picture Number :=
Portrait Filename := Event_PopulationHappy.jpg
Large Portrait Filename := LargePortrait_Event_PopulationHappy.jpg
Maximum Level := 100
Number Of Requirements := 1
Requirements Evaluation Availability := AND
Requirements Evaluation Allows Placement := TRUE
Requirements Evaluation Allows Usage := TRUE
Requirement 1 Description := Empire must have spent more time developing Doctrine - Extreme Wealth than other
doctrines.
Requirement 1 Formula := (Get_Empire_Tech_Level("Doctrine - Extreme Wealth")) >
(MAX(Get_Empire_Tech_Level("Doctrine - WAAAGH"), Get_Empire_Tech_Level("Doctrine - Technicol Bitz")))
Number Of Abilities := 1
Ability 1 Type := Resource Gen Modifier - Minerals
Ability 1 Description := All planets DIG FASTA by [%Amount1%]%.
Ability 1 Scope := Galaxy - This Player
Ability 1 Range Formula := 0
Ability 1 Amount 1 Formula := Iif((Get_Empire_Tech_Level("Doctrine - Extreme Wealth")) >
(MAX(Get_Empire_Tech_Level("Doctrine - WAAAGH"), Get_Empire_Tech_Level("Doctrine - Technicol Bitz"))), [%Level%], 0))Ability 1 Amount 2 Formula := 0
[b]How it works[b]
First things first: I did NOT test this, this is just a quickly stuffed together idea. But, anyway...the idea is to have the MAX statement judge the level of the ability (you can make this always one level with a bit of tinkering). If EITHER of the other techs is higher than Extreme Wealth, the culture does not advance.
By putting it in the ability itself in an IF statement (which I probably got in the wrong order so bleh), you can have it set so that you get the bonus ONLY if the Doctrine - Extreme Wealth tech is the highest one. Otherwise, the bonus is 0%.
By researching one higher than the others, you end up with THAT specific bonus.
The only problem comes from if the Cultural abilities update every turn or only when techs are researched. If it's the latter (I haven't had enough time to test all of this yet), have the LEVEL go up for every doctrine but the ability modifier be constant or affected by the only tech area you want to apply.