身边的经济学·社会常识英语30篇（9）

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批次0039-031：市政债务发行周期中的财政锚点

Cities issue bonds not only to fund infrastructure but also to smooth tax revenue volatility.
Credit rating agencies assign grades based on debt-service coverage ratios and multiyear fiscal plans.
A binding 'debt affordability rule' limits annual borrowing to no more than 12% of operating revenue.
These self-imposed anchors prevent short-term political pressure from overriding long-term solvency.
When property values surge, municipalities resist over-issuing despite temporary windfall capacity.
Conversely, during recession, they draw on reserves rather than violate structural balance targets.
Independent fiscal councils increasingly audit compliance before bond-sale authorizations.
Deviations from anchors often trigger state-level oversight or loss of local borrowing autonomy.
The credibility of such rules depends less on legal force than on consistent enforcement history.
Over time, anchor adherence shapes investor expectations far more than individual project merits.