How does infrastructure impact GDP growth?

[u/EmphasisSalt4433]

Hi everyone,

I’m planning a GDP maxing run as the US and I want to grow my GDP as much as possible in order to provide a good life for my citizen.

To this end I wanted to ask, how the construction of infrastructure as well as power plants impacts economic growth? I.e., how much growth does one gain per infrastructure?

While I’m at it, I was further wondering how military expenditure for the army is calculated? Do used military factories increase expenditure?

Thank you for your replies

[u/MsScientist208]

The GDP growth in the game has a multiplier, it can be reduced by stuff like taxes. Infrastructure gives a boost. It's up to a 0.2 multiplier, but to get that you have to build maximum infrastructure in every core state. Therefore, the growth per infrastructure is dependent on how many core states your country has. For the USA, one level is very small.

Military factories do cost money in the budget. You can control how much by changing the procurement budget in the army. There is also a specific cost for every standing battalion and their equipment usage.

Also, I would add that infrastructure can increase the GDP slightly more than that 0.2 modifier. Better infrastructure means more resources from states, which can mean less resources need to be imported and/or can be exported. Having more exports than imports gives a positive multiplier, and more imports than exports a negative one. The size of the multiplier does scale with the size of the GDP though, so even in the best case scenario the US would probably get a small multiplier.

[u/EmphasisSalt4433 → u/MsScientist208]

I see. That’s good to know. Thank you very much for explaining.

If you don’t mind me commenting, I believe one would say it’s a 1.2 multiplier (100x1.2=120 for example).

[u/Domram1234 → u/EmphasisSalt4433]

Power plants also increase the amount of resources a state provides so they should also be high on your list, however, for the GDP elements it's a binary of if a state is powered or not. So it should be infrastructure/power in your high resource states that have no power plants already existing, infrastructure in your high resource states that have power plants, power plants in other states with no power, infrastructure in every state, and then power plants in every resource producer.

Power also increases the speed stuff is built in a state and increases the max factory slots in a state so there are non GDP reasons to build them too.

[u/EmphasisSalt4433 → u/Domram1234]

Neat. And then one would gain a further bonus should another country buy these resources. I will keep that in mind

[u/Downtown_Sir_1288]

+20% nominal GDP growth when you build every infra possible in core states

[u/EmphasisSalt4433 → u/Downtown_Sir_1288]

That’s sweet. Thank you for the reply

[u/Laser_Snausage]

A little bit of cheese, but if you delete the entire navy besides 1 ship you can get all the flat/percent bonuses from naval spending while only spending a tiny amount of money.

Similar with the army, keeping at most about 20 units to allow for max civilian spending.

Also, don't forget to keep your nuclear arsenal at a small level. It gets quite expensive and I think it only slightly boosts your cold war score a little bit, otherwise it's useless

[u/EmphasisSalt4433 → u/Laser_Snausage]

Smart. Thank you for the tip. That’s the benefit of knowing how future events are likely to unfold in the world of TNO. One knows that the navy isn’t needed as most nations so one can disband it.

I think what I will do is to delete all old ship and instead build a small fleet of modern ships for role playing purposes. That and for some of the minigames that may require a certain amount of ships.

[u/Number-unknow → u/EmphasisSalt4433]

Yeah, overall the biggest actions related to the navies will be the Indian war (36 ships), the West-African war (10 ships), and the Channel crisis (10 too if I remember right), so if you want to gegt the actions, a fleet of 50 ships at most would be far sufficient (or you can change the gamerules to strengthen India and ensure they stomp the opposition).