In a graph of this good’s market, a vertical supply curve intersects a downward-sloping demand curve with nominal interest rate plotted on the y-axis. Proponents of a heterodox “Modern” theory named for this good include Stephanie Kelton. (10[1])The producer of this good receives a profit called seigniorage (10[1])(“SANE-yur-idge”). Types of this good (-5[1])with more inherent value (-5[1])are predicted to disappear by Gresham’s Law. Types of this good are traded in the forex market. Fiscal (10[1])policy and policy named after (10[2])this good make up a government’s economic policy. (-5[1])Types of this good that have no inherent value are called fiat. For 10 points, name this thing (10[1])that can be exchanged for any good or service. (10[2])■END■ (0[1])