The exercise of fiscal powers, whose chief source is constitution and whose subject matter overlaps with that of constitution, is deemed a sort of constitutional act and the extent of the exercise is determined by the efficiency of constitutional fiscal adjustment. Fiscal powers thus inevitably bear a color of constitutional legal order and their substantial contents reveal at the constitutional level some contractual economic power while at the administrative law level some administrative economic power, and at the economic law level some regulatory economic power. Fiscal powers have their ro...
