Body: "Public finance" is the field of Public finance is the study of the role of the government in the economy.
Some motivations are It is the branch of economics which assesses the government revenue and government expenditure of the public authorities and the adjustment of one or the other to achieve desirable effects and avoid undesirable ones.
Mark Witte, Haizhen Mou are some authorities of "Public finance".
government revenue and government expenditure are a few categories of "Public finance".