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In 1936, after researching the technology Basic Machine Tools, the player has a choice between two industrial technologies: Concentrated industry and Dispersed industry. These two branches are mutually exclusive, meaning that the player may only go down one of this two branches. Each of these has its positives and its negatives, and it depends on the players play style.
Concentrated Industry - Has 5 levels that can be researched which span from 1936 to 1943 Each new level provides the same bonus as previous levels. By choosing Concentrated Industry, the player is increasing his production substantially. This will allow the player to build more factories, and make pre-existing ones more efficient
Dispersed Industry - Like Concentrated Industry, Dispersed Industry has 5 levels that can be researched between 1936 and 1943 Each new level provides the same bouses except the first one, which provides different rewards than the rest.