Reibun
、、、。

Whether it's the national economy, household finances, or personal budgets — none of these should be handled with back-of-envelope accounting.

Literal

Country [attributive-の] economy [even-だって], household [attributive-の] economy [even-だって], individual [attributive-の] economy [even-だって], sloppy-accounting [with-で] good thing is-not-[copula-ではない].

An op-ed moral about careful budgeting. 丼勘定 ('bowl-accounting, sloppy bookkeeping') is a striking idiom — from the practice at old bathhouses, izakaya, and bars where money went in and out of a large bowl (丼) without records. Figuratively, it means keeping finances without proper records. だって ('even, also') is used three times in parallel for rhetorical emphasis. ではない is the plain negative copula.