Government taxing & spending are part of this "policy", from the Latin for "basket" or "treasury"
... 
Related to the treasury of a country, company, region or city, particularly to 
government... [DOC] [TLE] Fiscal | Definition of Fiscal by Merriam-Webster [PAR] of or relating to money and especially to the money a government, business, ... 1 : 
of or relating to taxation, public revenues, or public debt <fiscal policy> ... Fiscal 
derives from the Latin noun fiscus, meaning "basket" or "treasury.