A simple New-Keynesian model is set out with AS-AD graphical analysis. The model is consistent with modern central banking, which targets shortterm nominal interest rates instead of money supply aggregates. This simple framework enables us to analyze the economic impact of productivity or markup...

A dynamic model of consumption and portfolio decisions is analyzed in which agents seek robust choices against some misspecification of the model probability distribution. This near-rational environment can at the same time explain an imperfect international portfolio diversification and break...

Recent studies have emphasized the role of valuation effects due to exchange rate movements in easing the process of adjustment of the external balance of a country. This paper asks to what extent valuation effects are desirable from a global perspective as a mean to achieve an efficient...

This paper provides evidence on the behavior of public debt managers during fiscal" stabilizations in OECD countries over the last two decades. We find that debt maturity tends to" lengthen the more credible the program, the lower the long-term interest rate and the higher the" volatility of...

We analyze a two-country economy with complete markets, featuring two national currencies as well as a global (crypto)currency. If the global currency is used in both countries, the national nominal interest rates must be equal and the exchange rate between the national currencies is a risk-...

Asset prices and the equity premium might reflect doubts and pessimism. Introducing these features in an otherwise standard New-Keynesian model changes in a quite substantial way the nature of the policy that maximizes the welfare of the consumers in the model. First, following productivity...

The paper presents a new empirical regularity between the volatility of productivity growth and long-run unemployment, for a given level of long-run productivity growth. A theoretical framework based on asymmetric real wage rigidities is shown to have the potential to rationalize this finding....

An important aspect of the globalization process is the increase in interdependence among countries through the deepening of trade linkages. This process should increase competition in each destination market and change the pricing behavior of firms. We present an extension of Dornbusch (1987)'s...

consequences of their current wage choices, when facing both idiosyncratic and aggregate shocks. We derive a closed-form solution for a long-run Phillips curve which relates average output gap to average wage inflation: it is virtually vertical at high inflation and flattens at low inflation....

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