Exchange Rate Volatility and Productivity Growth: The Role of Liability Dollarization

This paper studies how liability dollarization conditions the effect of exchange rate flexibility on growth. It develops a model with credit-constrained firms facing liquidity shocks denominated in tradables while their revenues are both in tradable and nontradables. With frictions in the reallocation between tradables and nontradables, a peg is more growth-enhancing than a float in countries with dollarized debt because it stabilizes firms?? cash flows and therefore allows them to face liquidity shock and complete their innovation process. However, this relative advantage diminishes when dollarization decreases. These theoretical predictions are confirmed by an empirical analysis on a panel of 76 countries spanning 1995?C2004: the higher the degree of dollarization, the more negative the impact of exchange rate flexibility on growth. The empirical results are robust to various specifications and to the treatment of endogeneity.     

Testing evolutionary theory of household consumption behavior in the case of novelty - a product characteristics approach

This article tests and extends the evolutionary theory of household consumption behavior, which is an alternative to neoclassical theory. Evolutionary economists offer novel approaches to the analysis of consumption behavior that emphasize the major role of learning in the evolution of consumer preferences and wants. As a possible inspiration for further progress in evolutionary thought, this paper examines the idea of consumer learning by studying the nature of what consumers should learn in the context of ‘novelty’. Our empirical results regarding novelty during the learning process show that consumers learn the ‘new characteristics’ of consumer goods, contrary to the Lancasterian approach, which suggests that the characteristics space of goods is fixed. We show that during the process of consumption, ‘consumer learning’ extends the characteristics space of consumer goods; this phenomenon is far from negligible and differs across product types. Moreover, our results show that the emergence of new characteristics cannot be modeled as a Poisson process because these new characteristics exhibit clear interdependence over time.     

When Do Long‐term Imbalances Lead to Current Account Reversals?

We extend the literature on sharp reductions in current account deficits by taking into account not only short‐term determinants, but also the deviation of net foreign assets from their long‐run equilibrium level. First, we analyse the long‐term relationship between net foreign assets and a set of explanatory variables and construct a measure of imbalances. Next, we model current account reversals by incorporating this new measure and compare the predictive power of this model with the baseline specification that does not account for long‐term imbalances. Our new model has a superior performance in and out‐of‐sample, especially when we control for the sign of imbalances. We also find that low net foreign assets do not necessarily lead to sharp reductions in current account deficits; it is rather the situation when they are below their equilibrium level that triggers reversals. Finally, we document that our new measure of net foreign asset imbalances is important only for developing countries, whereas standard models perform well for industrial economies.