Demand is an economic principle that describes a consumer's desire and willingness to pay a price for a specific good or service. Holding all other factors constant, an increase in the price of a. The Phillips curve suggests that there is an inverse relationship between inflation and unemployment. This suggests that policymakers have a choice between prioritizing inflation or unemployment. During the SS, Phillips curve analysis suggested that there was a trade-off and that policymakers could use fiscal demand management and,