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If our model assumes that the demand to hold real money balances is influenced by the expected inflation rate, the demand to hold real money balances is an O endogenous variable determined in part by the expected inflation rate O exogenous variable Question 7 1 pts If our model assumes that the demand to hold real money balances is influenced by the expected inflation rate, and that the expected inflation rate is influenced by the expected growth in the money supply, the demand to hold real money balances is an O endogenous variable determined in part by the expected growth in the money supply O exogenous variable Question 8 1 pts The costs of expected inflation include (choose one or more) O shoeleather cost menu costs O variability in relative prices leading to microeconomic inefficiencies in the allocation of resources O (tax) bracket creep