Labor Mobility And Fiscal Policy In A Currency Union

Labor mobility is commonly taken as a property of an optimal currency area. But how does that property affect the outcome of fiscal policies? In our model, we show that perfect (costless) labour mobility is not necessarily welfare improving, since it prevents the national fiscal authorities from pursuing independent policies, opening the way to a coordination problem. With symmetric shocks, the federal fiscal policy can improve welfare by playing a coordinating role. With asymmetric shocks, the federal policy allows both countries to reach a higher productive efficiency, provided the federal government is endowed with a federal budget.

In this dissertation I study how economic activity outside of government control --informality-- impacts policy-making in a small open economy. I also study the impact of labor mobility in a currency union on the welfare of the union. Chapter 1 is concerned with the impact of informality on the Ramsey optimal fiscal and monetary policy. In particular, I ask: how does economic activity outside of government control affect the conduct of fiscal and monetary policy? I study this question in a New Keynesian, small open economy model. The model is assumed to feature informality in both goods and labor markets. A non-traded sector produces a non-taxed informal good. The traded sector produces a formal good and is subject to taxation, but it can hire workers using both formal and informal contracts. I show that the presence of informality decreases the optimal tax rate and increases macroeconomic volatility. Moreover, when the country cannot credibly precommit to the optimal policy, informality significantly increases the incentive to peg the currency. This result can help explain why many sub-Saharan African countries have plans to either expand existing currency unions or to form new ones. In Chapter 1 I also investigate the impact of the informal sector on fiscal policy: the tax rate levied by the government in the formal sector and the amount of public debt. With the steady state of the theoretical model described above, I show that the presence of informality decreases the optimal tax rate and increases the level of public debt. Using a panel data of developing countries, I empirically document the negative relationship between the size of the informal sector on the tax rate and its positive relationship with public debt. Chapter 2 is concerned with how migration within a currency union affects welfare across the union. In particular, I study this question in this paper with a New Keynesian currency union model. The union consists of two countries whose economies are characterized by labor market frictions. One country member has a higher job-finding rate and a lower unemployment rate compared to the other country, hence unemployed agents in the latter have an incentive to relocate to the former. I show that when firms have the ability to hire workers from abroad and when unemployed agents can relocate to a different country, the negative impact of asymmetric shocks is significantly reduced, improving welfare across the union on average.

An overview and the latest research on single currency areas in Europe, the US, and the former USSR.

This paper examines the sources of disturbances to output in the United States and a set of EU countries and analyzes labor market adjustment mechanisms in these two economic areas. Comparable datasets comprising 1-digit sectoral data for eight U.S. regions and eight European countries are constructed and used to compare the degree of industrial diversification and the relative importance of different sources of shocks to output growth. Both areas are found to be subject to similar overall disturbances although a disaggregated perspective reveals some important differences. The major difference, however, is in labor market adjustment. Interregional labor mobility appears to be a much more important adjustment mechanism in the United States, which has a more integrated labor market than the EU.

We study the effects of labor mobility within a currency union suffering from nominal rigidities. When the demand shortfall in depressed region is mostly internal, migration may not help regional macroeconomic adjustment. When external demand is also at the root of the problem, migration out of depressed regions may produce a positive spillover for stayers. We consider a planning problem and compare its solution to the equilibrium. We find that the equilibrium is generally constrained inefficient, although the welfare losses may be small if the economy suffers mainly from internal demand imbalances.

This paper investigates the circumstances under which it is beneficial to participate in a currency area. A two-country monetary model of trade with nominal rigidities encompasses the real and monetary arguments suggested by the optimum currency area literature: correlation of real shocks, international factor mobility, fiscal adjustment, openness, difference in national inflationary biases, correlation of monetary shocks, and benefits of a single currency. The effect of openness on the net benefits is ambiguous, contrary to the usual argument that more open economies are better candidates for a currency area. Countries do not necessarily agree on whether a given currency union should be created.

As a fundamental review and critique of activist economic policies, this book is a unique contribution to classical political economy. "Monetary Policy and Macroeconomic Stabilization" is about macroeconomic stabilization policy, with emphasis on the value of a distinct national monetary policy to growth. Ole Bjorn Roste's argument is for public officials to restrain themselves in the pursuit of policy. As the author notes: when you know less, you should do less.The history of modern macroeconomics started in 1936 with the publication of Keynes' "General Theory of Employment, Interest, and Money". The problems of the Great depression of the 1930s paved the way for a change of focus, from the long run to economic fluctuations in the short run, and from nominal to real variables, such as unemployment and aggregate output.Keynes offered clear policy implications in tune with the times. Because economic adjustment was slow, waiting for the economy to recover by itself was irresponsible. Particularly fiscal policy was essential to return to high employment. Monetary policy could affect aggregate demand through Interest rates, but was less important. Roste discusses the role of monetary policy, starting out with the implications of the theory of optimum currency areas (OCAs). This is followed by estimates of the output loss associated with disinflation policy (the sacrifice ratio) for six OECD economies. Further, Roste models the dynamic adjustment to negative, local labor-market shocks, with particular relevance to Scandinavia, in a final section.The idea that governments should pursue stabilizing fiscal or monetary policies with regard to real variables is often taken for granted by the public, if not by economists. Among the reasons for skepticism, is the presence of differing views on how economies really work, that the state of a given economy becomes known only after a time lag, and that economic agents react to policy and expectations of policy. For these reasons, the effects of policy are generally uncertain. This book explains why the role of history is critical to the study of macroeconomics.p>

In this volume, a group of distinguished economists and political scientists analyze the political economy of European integration, evaluating recent developments in European monetary and fiscal policy. They consider the current situation, as well as the prospects for an Integrated Europe. The book is unique in combining perspectives from economics and political science and provides an in-depth analysis of the new European institutions. The book will be of great interest to observers, scholars, and students of European economic and political affairs, macroeconomic policy, institutional analysis, and comparative and international political economy. Published in conjunction with "Politics and Institutions in an Integrated Europe" by the same editors.