There has been some controversy about the infrastructure builds i added to the building queue of AI in the 1936 grand campaign. Some think i made AI build too much infrastructure and as it spends great amounts of its available ic into Infrastructure this critique has some substance. I would like to lay down the reasoning for the Infra builds in 109 Beta 11(set33) and later versions of 1.09 and have that as a starting point for discussion.
The most important reason for Infrastructure is increased provincial efficiency that increases the output of factories and resources. In most cases factories are more important as ic is short in the short run. In the long run the output of resources becomes more and more important. A collapse of the world economy by AI building factories instead of Infra must be avoided at all costs.
When AI builds Infra it gets a 30 percentage point gearing increment per finished unit. It has to pay no malus for hard terrain, everything is threated as plains(details may apply). Both change the balance in favour of building much infra, especially for USSR and China.
AI adding Infrastructure to the building queue is a rare instance. It ignores factories and only seems to care about resources even when factories are much more important. It only addes one unit infrastructure und thus makes no use of gearing bonus. It does even ignore the maximum of 200% Infra in a province, so it wastes a lot of icd for no use at all. The inital building queue tries to compensate for that.
Of some importance for AI building Infra is what AI would build else. AI would else build military, that reduces yields from unused manpower, costs salaries, costs supplies and will cost substancial upgrading because models are built that are going to be outdated long before they are going to be used. So building military as a huge negative rate of interest which the low positive rate of interest on Infra needs to be compared with. Also changing sliders and advancing in tech usually changes the relative building efficiency in favour of building military as late as possible.
The effect infra has on reorg of land units and ese is often of secondary importance, but it is important nonetheless. It might also be important for allied forces. Finland is the best example for this as it may need other things more urgently, but its german ally utilizing increased ese is a big advantage for its alliance in total.
Edit: There is something else to consider:
The most important reason for Infrastructure is increased provincial efficiency that increases the output of factories and resources. In most cases factories are more important as ic is short in the short run. In the long run the output of resources becomes more and more important. A collapse of the world economy by AI building factories instead of Infra must be avoided at all costs.
When AI builds Infra it gets a 30 percentage point gearing increment per finished unit. It has to pay no malus for hard terrain, everything is threated as plains(details may apply). Both change the balance in favour of building much infra, especially for USSR and China.
AI adding Infrastructure to the building queue is a rare instance. It ignores factories and only seems to care about resources even when factories are much more important. It only addes one unit infrastructure und thus makes no use of gearing bonus. It does even ignore the maximum of 200% Infra in a province, so it wastes a lot of icd for no use at all. The inital building queue tries to compensate for that.
Of some importance for AI building Infra is what AI would build else. AI would else build military, that reduces yields from unused manpower, costs salaries, costs supplies and will cost substancial upgrading because models are built that are going to be outdated long before they are going to be used. So building military as a huge negative rate of interest which the low positive rate of interest on Infra needs to be compared with. Also changing sliders and advancing in tech usually changes the relative building efficiency in favour of building military as late as possible.
The effect infra has on reorg of land units and ese is often of secondary importance, but it is important nonetheless. It might also be important for allied forces. Finland is the best example for this as it may need other things more urgently, but its german ally utilizing increased ese is a big advantage for its alliance in total.
Edit: There is something else to consider:
It might be worth to note that the USA, the UK and France are 3 special cases as their peacetime penalties had been reduced in 1.09. The purpose was to increase resource supply and to allow the human player to fund research properly. As AI has no need to fund its research it has been made to spend the gained icd into some additional Infra, so that the goal, to keep those nations sufficiently unprepared for war at their historic dates of war entry, is not harmed.
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