Rare earth metals are used in the production of many of the personal electronic devices you use every day. Suppose there is an unexpected decrease in the price of rare earth metals. a. The decrease in price of rare earth metals will lead to negative cost-push inflation. demand-pull inflation. an increase in expected inflation. negative demand-pull inflation. b. Illustrate the effect of the decrease in the price of rare earth metals by making the appropriate adjustments to the Phillips curve.