When I put all economic cursors left (at the 0% setting), something strange happens: The total of the three cursors exceeds 100% and reaches up to 200%. For example, I had cursors at:
military 0%
social 50%
research 50%

then, I moved social at 0% the research at 0% and finally got a 50% social rate and a 150% research rate.

Later, playing again with the cursors to see if there was some repetitivity to that process, I got:
military 1%
social 1%
research 195%
with a total not quite 200%

Furthermore, if I am not mistaken, these values are actually used because I remember seeing my research rate climb drastically.

Yves