a) 10*15 =150. Costs = 1000 $
b) 9*10+60 =150. Costs =0$
I'm always choosing option b) because I'm getting the +60, +30, +20 more often then 1-10
The # of diplomats you can get is rather low. To increase them being civilized, a GP, at war or having prestige (0.25 for every step, just forgotten the exact numbers).
Meritocracy vs Buraucracy: iirc meritocracy will give you a modifier to your diplomats (??)
In addition to increasing the # of diplomats you can also decrease the need for them: read the event files.
It's also important to know which nation has a "befriend" tied with your nation. As Prussia I will always opt for the netherlands in the belgium war at game start and stay friendly with them. They will improve our relations costing me no diplomats. I'm not sure if "befriend" is the tag, but every nation has a set of friends
