I've pretty much wrapped up new economic model (I can't wait to test it more). What has changed?
- IC is based on real production data from statistical yearbooks and now means 'how much given economy is able to produce'. So IC is a derivative of all goods produced by given country. Of course agriculture or processing have smaller influence on IC, so Poland doesn't have 100 IC based on milk and potatoes and Curacao doesn't have 40 IC because of oil refineries.
- Resources are also based on real data - metal is iron ore, rare materials are multiple minerals (rubber is about 20% of it), energy is output of coal, lignite, natural gas and hydropower plants in kWh, oil is, well, crude oil.
- There would be some events, which add new oil fields, mines, hydropower plants etc.
- Industry now need oil - for each 10 points of
base IC you need 2 units of oil (though I'm eager to change it if it wouldn't be adequate burden for every country). It simulates both needs of industry (you can't transport everything with trains!) and civilians (indirectly, as consumer goods are output of IC). Oil consumption is updated each month.
- Most of oil in the world would be in hands of USA, UK and SU (directly or indirectly - via trade deals). So no more buying huge amount of oil from Venezuela.
- Old synthetic fuels system is gone. Synthetic fuels was produced mostly by Germany for very simple reason: Allies and SU literally bathed in crude oil (in comparison with Germany of course). They didn't need to produce synthetic fuels, though they experimented with them and built small plants - of course not to extent Germans did. Nonetheless, all countries would have option to build synthetic fuels plant if they don't have enough oil and have enough energy and money. It would work in the same way as it is in current version of REP (so via decisions). Free conversion from energy to oil is disabled.
- Rubber! Before war, most of natural rubber was produced in Malaysia, Ceylon and Indonesia. Other significant sources were Thailand, Indochina, Sarawak and Brasil. So Germany simply had to produce synthetic rubber, because during war would be cut off from natural sources. Similarly, when Japan conquered most of countries mentioned above, USA had to begin production of synthetic rubber on huge scale. So major countries would get significant malus to production of motorized troops and TC if they don't have enough synthetic rubber plants and sources of natural rubber are in enemy hands. Of course Germany would be hit already at the beginning of war. Similarly to synthetic fuels plant, you could produce synthetic rubber via decision. They would still provide some on-map resources.
- Synthetic fuels and rubber techs would improve efficiency of the process (so you would spend less resources to produce fuels or rubber).
- Swedish iron ore event path would be slightly changed. Sweden would lose 35% of capacity of its iron ore mines in Kiruna and Lulea if there is winter (December-April) and Narvik is in Allies hands. Look
here for broad explanation.