Two common properties of macroeconomic models are non-linearities and dynamics characterised by a non-zero number of unstable eigenvalues. Under these circumstances, a common approach is to make analysis more tractable by linearising the model in the neighbourhood of an appropriate steady-state....

The paper defines a simple tatonnement process of adjustments in prices and quantities, where excess demand results in nominal price increases and excess supply results in quantity rationing of supply at unchanged prices. Under reasonable assumptions, the process converges to a...

This paper qualifies Weil [1989]'s according to which dynamic efficiency may fail when agents are infinitely-lived, but "disconnected" from previous ones. It is shown that finite horizons matter in the following sense: if dynamic inefficiency results when the agents have infinite horizons, then...

The class of paremetric dynamic latent variable models is becoming more and more popular in economics and finance. Dynamic disequilibrium models, latent factor models, switching regimes models, stochastic volatility models are only few examples of this class of models. Inference in this calss...

In a two period model with asymmetric information the authors study the optimal antitrust policies carried out by a pulbic agency faced with firms' horizontal price-fixing behaviour. They analyse the effect on social welfare in case the Antitrust Authority decides to bind itself to follow the...

In this paper, the authors analyze the non paramatric identification of dynamic discrete choice without consumption smoothing using individual data on discrete choices. They posit that preferences are not restricted and that agents have private information about heir tastes at each period that...

In this paper the authors analyze the interaction of two disciplinary mechanisms: competition and reputation. They first study a dynamic model of monopolistic competition with experiencs goods (i.e., quality is observed after goods are purchased). When market power is high enough, reputation...

This paper describes two alternative approaches (modified reverse shooting and forward shooting) for solving the time-path of a representative agent model following an exogenous shock. In particular, reverse shooting is demonstrably better for solving part of the model but must be modified...

This paper discusses three key elements of stochastic growth in the Schumpeterian dynamics. These elements comprise the new entry of firms in an industry, the displacement of the old technology by the new and the nonlinear impact of learning by doing on the growth of innovating firms. Each of...

For guidance in determining which items should be included in comprehensive NDP and how they should be included, reference is often made to the linearized Hamiltonian from an optimal growth problem. The paper gives a rigorous interpretation of this procedure in terms of a money-metric utility...