On Financial Markets Incompleteness, Price Stickiness, and Welfare in a Monetary Union

In this paper, we measure the welfare costs/gains associated with financial market incompleteness in a monetary union. To do this, we build on a two-country model of a monetary union with sticky prices subject to asymmetric productivity shocks. For most plausible values of price stickiness, we show that asymmetric shocks under incomplete financial markets give rise to a lower volatility of national inflation rates, which proves welfare improving with respect to the situation of complete financial markets. The corresponding welfare gains are equivalent to an average increase of 1.8% of permanent consumption.Monetary union, Asymmetric shocks, Price stickiness, Financial market incompleteness, welfare

Endogenous Entry, International Business Cycles, and Welfare

Working paper GATE 2011-14This paper examines if taking into account changes in the number of producers, or equivalently changes in the product variety space over the business cycle, helps to understand and replicate international business cycle facts. To this end, we develop a two-country model in which the economy is driven by real and monetary policy shocks. If it is characterized by an endogenous number of firms and varieties, sticky prices and financial markets incompleteness. We show that these features are crucial to reproduce international business cycle statistics. We also evaluate the welfare implications of various monetary policies and highlight the importance for monetary policymakers to respond moderately to output fluctuations

Welfare Reversals in a Monetary Union

We show that welfare can be lower under complete financial markets than under autarky in a monetary union with home bias, sticky prices and asymmetric shocks. Such a monetary union is a second-best environment in which the structure of financial markets affects risk-sharing but also shapes the dynamics of inflation rates and the welfare costs from nominal rigidities. Welfare reversals arise for a variety of empirically plausible degrees of price stickiness when the Marshall-Lerner condition is met. These results carry over a model with active fiscal policies, and hold within a medium-scale model, although to a weaker extent

The Welfare Gains of Trade Integration in the European Monetary Union

This paper evaluates the welfare gains arising from a deeper trade integration in the European Monetary Union. To do this, the European Monetary Union is represented in a realistic way by an intertemporal general equilibrium model with incomplete financial markets, sticky prices and home bias both in private consumption and production. The model is estimated and globally not rejected by the data. Two main results emerge : (i) an increase in vertical (intermediate goods) trade implies welfare gains while (ii) an increase in horizontal trade implies welfare losses.trade integration, inflation differentials, welfare analysis, optimal currency areas

Endogenous Entry, International Business Cycles, and Welfare

This paper examines if taking into account changes in the number of producers, or equivalently changes in the product variety space over the business cycle, helps to understand and replicate international business cycle facts. To this end, we develop a two-country model in which the economy is driven by real and monetary policy shocks. If it is characterized by an endogenous number of firms and varieties, sticky prices and financial markets incompleteness. We show that these features are crucial to reproduce international business cycle statistics. We also evaluate the welfare implications of various monetary policies and highlight the importance for monetary policymakers to respond moderately to output fluctuations.International business cycles; Endogenous entry; Financial markets incompleteness; Sticky prices; Monetary policy; Welfare

Ramsey Policies in a Small Open Economy with Sticky Prices and Capital

This paper analyzes jointly optimal fiscal and monetary policies in a small open economy with capital and sticky prices. We allow for trade in consumption goods under perfect international risk sharing. We consider balanced-budget fiscal policies where authorities use distortionary taxes on labor and capital together with monetary policy using the nominal interest rate. First, as long as a symmetric equilibrium is considered, the steady state in an open economy is isomorphic to that of a closed economy. second, whereas sticky prices allocations are almost indistinguishable from flexible prices allocations, the open economydimension delivers results that are qualitatively similar to those of a closed economy but with significant quantitative changes. Fluctuations in terms of trade implied by complete international financial markets affect (i) consumption through changes in the consumption price index (CPI), (ii) hours through changes in the CPI-based real wage and (iii) capital accumulation through the relative price of capital goods. These wedges affect the volatility and persistence of optimal tax rates, and resulting allocations are quite different, as compared to a closed economy.small open economy; sticky prices; optimal monetary and fiscal policies

The Macroeconomic Effects of Lockdown policies

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