Contents -- 4. General Applications -- Investigating Causal Relations by Econometric Models and Cross-Spectral Methods -- Money, Income, and Causality -- Rational Expectations and the Dynamics of Hyperinflation -- The Demand for Money during Hyperinflations under Rational Expectations -- A Note on Maximum Likelihood Estimation of the Rational Expectations Model of the Term Structure -- Estimation of Dynamic Labor Demand Schedules under Rational Expectations -- Stochastic Implications of the Life Cycle-Permanent Income Hypothesis: Theory and Evidence -- 5. Testing for Neutrality -- A Classical Macroeconometric Model for the United States -- The Observational Equivalence of Natural and Unnatural Rate Theories of Macroeconomics -- Unanticipated Money Growth and Unemployment in the United States -- Unanticipated Money, Output, and the Price Level in the United States -- 6. Macroeconomic Control Problems -- Rules Rather than Discretion: The Inconsistency of Optimal Plans -- On the Time Consistency of Optimal Policy in a Monetary Economy -- Estimation and Control of a Macroeconomic Model with Rational Expectations -- Estimation and Optimal Control of Dynamic Game Models under Rational Expectations.