What JohnV wrote; depending on corporations types the settings work better with managers.
Executives should atleast have something for value, as they are showing signs of a dip right now, dropped about 1k in 10 game months.
As you might also want to look into raising the HT seniors as they are showing sign of a dip also.
Plus another 10k roads, probably another 2k high schools, you country should be looking great. As those indexs are little in balanced at the moment.
To note aswell; you welfare index is tanking with the social security. So you might want to raise that for better welfare; which helps score and overall production of corperations. To note you are losing score, and you cannot game level up with such low social security index.