You may be interested in looking at the following websites which provide various commentaries on public financial management at a country level:
International Monetary Fund: http//www.imf.org/external/
This website provides a range of material on public financial management topics including papers on trends across its one hundred and eighty eight member countries.
Public Expenditure and Financial Accountablity (PEFA): https://www.pefa.org/
This website provides links to assessment reports of public financial management trends of national and subnational governments, prepared using the PEFA methodology, that have been made publicly available.