"Economic" is indeed the word which gives the best indication of what fiscal means.
Fiscal is an adjective which describes anything having to do with taxes and the government's income or debt. This means that it is directly linked to how much money the state has, needs, or how it uses it. This is closely linked to the economy because if the government is unstable with income tax for example, it influences how much money people and businesses have left for themselves after they have paid their taxes, and impacts their capacity to purchase and invest.
