This paper studies the dynamical properties of an extension of the well—known Romer model of endogenous growth introduced by Benhabib, Perli, and Xie (1994). This model differs from the Romer model by introducing complementarity of intermediate capital goods. It allows an indeterminate steady...

In this paper, we perform an in—depth investigation of relative merits of two adaptive learning algorithms with constant gain, Recursive Least Squares (RLS) and Stochastic Gradient (SG), using the Phelps model of monetary policy as a testing ground. The behavior of the two learning algorithms...

While under recursive least squares learning the dynamics of the economy converges to rational expectations equilibria (REE) which are E–stable, some recent examples propose that E–stability is not a sufficient condition for learnability. In this paper, we provide some further...

In this paper we perform an in—depth investigation of relative merits of two adaptive learning algorithms with constant gain, Recursive Least Squares (RLS) and Stochastic Gradient (SG), using the Phelps model of monetary policy as a testing ground. The behavior of the two learning...

In dynamic general-equilibrium economic models, equilibrium may be indeterminate, so a continuum of equilibrium trajectories may converge to the same steady state. Often, those mechanisms leading to indeterminacy, like increasing returns to scale, may also lead to multiple steady states and...

This paper studies the influence of different modelling assumptions on the determinacy of the steady state in one—sector models of economic growth with externalities in the production function. We show that productive public spending subject to congestion, combined with variable capital...

This paper contains a study of stochastic stability of the development trap in a model of economic growth when the production function is subject to externalities and, as a result, the development trap steady state ins indeterminate. In the presence of indeterminacy, sunspot equilibria can...

In their recent paper, Boldrin and Montes (2005) analyze the “return on human capital investment” theory and show that if borrowing for education is not possible, then a combined public education and pension system that uses lump sum taxes and transfers can replicate the first-best...

In this paper, we study an imperfect monitoring model of duopoly under similar settings as in Green and Porter (1984), but here firms do not know the demand parameters and learn about them over time though the price signals. We investigate how a deviation from rational expectations affects the...