Okay What does Chain Energy do?
preaty much makes you lose 500 for playing a card.
What does spell economic's do?
Negates Cost payment for activate spell cards.
Key word is Activating. Since Chain energy isnt getting activated Every turn but infact already dealing its effect Spell Economics couldnt possibly be able to negate it.
Confiscation, Toon world, etc... spell cards that require activation cost.
get negated, beyond that nope, spell economics cant do much since they have already been activated.