[vznoeiwf] Governments and economies failing

In a bad economy, all forms of government are unstable, vulnerable to public uprising.  In a good economy, pretty much any form of government remains stable.

Which forms of government are stable when the economy is medium, somewhere between good and bad?  Do some forms of government collapse faster as the economy goes downhill?  Is this the right question to be asking?

Or, is the better question to be asking, which forms of government promote a better, stronger, more robust economy?