Real-Time, Adaptive Learning Via Parameterized Expectations
The authors explore real time, adaptive nonlinear learning dynamics in stochastic macroeconomic systems. Rather than linearizing nonlinear Euler equations where expectations play a role around a steady state, they instead approximate the nonlinear expected values using the method of parameterized expectations. Further they suppose that these approximated expectations are updated in real time as new data become available. They explore whether this method of real-time parameterized expectations learning provides a plausible alternative to real-time adaptive learning dynamics under linearized versions of the same nonlinear system.