Marco P. Tucci graduated in Economics at the University of Sienna, then he went to the University of Texas at Austin (USA) where he got his Ph. D. specializing in Control Theory, Econometrics and Empirical Macroeconomics. He is currently Associate Professor at the University of Sienna and a member of the Society of Computational Economics. He has published in the Journal of Computational Economics, Journal of Economic Dynamics and Control, Journal of Structural Changes and Economic Dynamics, Economic Notes and has contributed to books. He is referee for the above mentioned journals and for Macroeconomic Dynamics.

• 1 Introduction.- 1.1 Introduction.- 1.2 Adaptive control and time-varying parameters.- 1.3 Time-varying parameters and the rational expectations hypothesis.- 1.4 The organization of the book.- 1.5 Suggestion for future research.- 1: Adaptive Control and Time-Varying Parameters.- 2 Kendrick’s (1981) Case.- 3 The Uncertain Parameter Mean Case.- 4 The Complete Uncertainty Case.- 5 Adaptive Control in the Presence of Time-Varying Parameters.- 6 The Nonconvexities Problem in Adaptive Control Models.- 2: Time-Varying Parameters and the Rational Expectations Hypotesis.- 7 The Rational Expectations Hypotesis in Linear Stationary Models: A New Formulation of Single-Equation Models.- 8 The State Space Representation of Single-Equation RE Models.- 9 The Identification Problem in Single-Equation RE Models.- 10 The Estimation Problem in Single-Equation RE Models.- References.- Name Index.

Marco P. Tucci graduated in Economics at the University of Sienna, then he went to the University of Texas at Austin (USA) where he got his Ph. D. specializing in Control Theory, Econometrics and Empirical Macroeconomics. He is currently Associate Professor at the University of Sienna and a member of the Society of Computational Economics. He has published in the Journal of Computational Economics, Journal of Economic Dynamics and Control, Journal of Structural Changes and Economic Dynamics, Economic Notes and has contributed to books. He is referee for the above mentioned journals and for Macroeconomic Dynamics.

• 1 Introduction.- 1.1 Introduction.- 1.2 Adaptive control and time-varying parameters.- 1.3 Time-varying parameters and the rational expectations hypothesis.- 1.4 The organization of the book.- 1.5 Suggestion for future research.- 1: Adaptive Control and Time-Varying Parameters.- 2 Kendrick’s (1981) Case.- 3 The Uncertain Parameter Mean Case.- 4 The Complete Uncertainty Case.- 5 Adaptive Control in the Presence of Time-Varying Parameters.- 6 The Nonconvexities Problem in Adaptive Control Models.- 2: Time-Varying Parameters and the Rational Expectations Hypotesis.- 7 The Rational Expectations Hypotesis in Linear Stationary Models: A New Formulation of Single-Equation Models.- 8 The State Space Representation of Single-Equation RE Models.- 9 The Identification Problem in Single-Equation RE Models.- 10 The Estimation Problem in Single-Equation RE Models.- References.- Name Index.

Marco P. Tucci graduated in Economics at the University of Sienna, then he went to the University of Texas at Austin (USA) where he got his Ph. D. specializing in Control Theory, Econometrics and Empirical Macroeconomics. He is currently Associate Professor at the University of Sienna and a member of the Society of Computational Economics. He has published in the Journal of Computational Economics, Journal of Economic Dynamics and Control, Journal of Structural Changes and Economic Dynamics, Economic Notes and has contributed to books. He is referee for the above mentioned journals and for Macroeconomic Dynamics.

• 1 Introduction.- 1.1 Introduction.- 1.2 Adaptive control and time-varying parameters.- 1.3 Time-varying parameters and the rational expectations hypothesis.- 1.4 The organization of the book.- 1.5 Suggestion for future research.- 1: Adaptive Control and Time-Varying Parameters.- 2 Kendrick’s (1981) Case.- 3 The Uncertain Parameter Mean Case.- 4 The Complete Uncertainty Case.- 5 Adaptive Control in the Presence of Time-Varying Parameters.- 6 The Nonconvexities Problem in Adaptive Control Models.- 2: Time-Varying Parameters and the Rational Expectations Hypotesis.- 7 The Rational Expectations Hypotesis in Linear Stationary Models: A New Formulation of Single-Equation Models.- 8 The State Space Representation of Single-Equation RE Models.- 9 The Identification Problem in Single-Equation RE Models.- 10 The Estimation Problem in Single-Equation RE Models.- References.- Name Index.