Capitalism 2 and Capitalism Lab Forum

I just notice that some of techs in the R&D for original and target tech are the same. For example a car has the original tech of 206 and the target tech is 206. Am i suppose to adjust each tech in the R&D for it to advance?

You may link more R&D units together to run a R&D project with a larger team. The tech advancement should be higher. A longer R&D duration will also help.