(Undated) -- Pennsylvania is among 19 states where the state can intervene in local governments' financial crises.
A Pew Charitable Trusts study has been released, just days after Detroit filed for bankruptcy.
The report says the commonwealth, Michigan, North Carolina and Rhode Island are among states with extensive intervention laws designed to prevent bankruptcy filings or provide alternatives to bankruptcy.
Many states have no intervention laws.
Pew says less than 10 of the country's 55,000 municipal governments that sell bonds file for bankruptcy each year.
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