No. You avoid war to lower exhaustion, perhaps amplified by how full your manpower pool is (More spare manpower means it drops faster) or how few troops you have (less troops it drops faster). Instead of spending bird mana, you don't invent a new war exhaustion mana pool.
Stability could be improved through something like the diet, you resolve a problem that's causing instability to make your realm more stable.
I dunno what you could do for inflation.