The ________ rate is the rate at which one currency can be traded for another

Spacely Sprockets, Inc, usually pays $1,000 for a million flanges, which it uses as inputs in the manufacture of sprockets. It also spends an average of $20 per million flanges on finding manufacturers and negotiating contracts. Spacely is capable of making its own flanges at a cost of $980 per million. Given these costs,

a. Spacely should continue to contract out for flanges b. Spacely should start to manufacture its own flanges c. it's not possible to say what Spacely should do d. Spacely should stop paying the additional $20 to find and negotiate contracts and just buy the flanges outright for $1,000 per million e. Spacely should move away from the use of flanges and toward an input that it can produce by itself

Higher than expected inflation rate: a. shifts short-run Phillips curve to the right

b. shifts long-run Phillips curve to the right. c. shifts both short-run and long-run Phillips curve to the right. d. shifts short-run Phillips curve to the left.