This paper shows that the under-investment in firm financed training caused by hold up can justify the introduction of firing taxes in a laissez-faire economy with search frictions and risk neutral agents. More precisely we highlight two results. First, the introduction of a firing tax for newly...

Models with externalities have become increasingly popular for studying both long-term growth and business cycle fluctuations. Externalities can lead to indeterminacy, allowing self-fulfilling expectations to determine the equilibrium. This paper argues that the importance of indeterminacy might...

The inclusion of a labour/leisure choice in endogenous growth models has interesting and somewhat counter-intuitive effects. In existing one sector models, a condition for indeterminacy is that labour demand is upward-sloping, which is difficult to reconcile with the evidence. In this paper we...

In endogenous growth models with a capital spillover, the market outcome is not Pareto efficient since agents ignore the positive externalities caused by investment. This makes it natural to conclude that taxes on investment or subsidies to consumption will impose first order welfare costs. In...

We present a simple overlapping generations model of an asset market in which irrational noise traders with erroneous stochastic beliefs both affect prices and earn higher expected returns. The unpredictability of noise traders' beliefs creates a risk in the price of the asset that deters...

The authors present a model of portfolio allocation by noise traders with incorrect expectations about return variances. For such misperceptions, noise traders who do not affect prices can earn higher expected returns than rational investors with similar risk aversion. Moreover, such noise...

type="main" xml:lang="en" <title type="main">ABSTRACT</title> <p>Recent empirical research has identified a significant amount of volatility in stock prices that cannot easily be explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational “noise trading.”...</p>

We define a bivariate mixture model to test whether economic growth can be considered exogenous in the Solovian sense. For this purpose, the multivariate mixture approach proposed by Alfò and Trovato is applied to the Bernanke and Gürkaynak extension of the Solow model. We find that the...

We use the revised estimates of U.S. GNP constructed by Christina Romer (1989) to assess the time-series properties of U.S. output per capita over the past century. We reject at conventional significance levels the null that output is a random walk in favor of the alternative that output is a...