Production and financial policies under asymmetric information

We propose an extension of the standard general equilibrium model with production and incomplete markets to situations in which (i) private investors have limited information on the returns of specific assets, (ii) managers of firms have limited information on the preferences of individual shareholders. The extension is obtained by the assumption that firms are not traded directly but grouped into ‘sectorial’ funds. In our model the financial policy of the firm is not irrelevant. We establish the existence of equilibria and discuss the nature of the inefficiencies introduced by the presence of asymmetric information. We also illustrate the properties of the model in three simple examples. We would like to thank Alberto Bisin, Armando Dominioni, Piero Gottardi, Tito Pietra, Paolo Siconolfi, and an anonymous referee for useful suggestions and comments.     

Interdependency and adjustments in the European Union

Since the euro was launched, divergences in European economies'evolutions have been more significant than generally expected. The article, based on a multinational macroeconomic model describing the interdependence between 14 European countries, examines the role played by relative‐price adjustment mechanisms and difficulties inherent in asymmetric evolutions.

The efficiency of relative‐price adjustment mechanisms seems limited and, even in the most flexible countries, the return to equilibrium is slow and still incomplete after 10 years. Differences in relative‐price adjustment mechanisms remain a source of asymmetries between member countries. Extra‐European exchanges have a stabilizing role which is uneven on account of trade openness and price elasticities. A decrease of the world demand and a depreciation of the euro, still have an important impact with significant disparities between countries.

Several lessons can be drawn in terms of economic policy. A more restrictive European fiscal policy proves more costly in the long run in Germany and the Netherlands on account of the weakness of price compensation effects. On the contrary, thanks to their greater flexibility, the United Kingdom and Sweden can offset an initial negative shock more rapidly. The wage dimension in the definition of a good European policy mix has also to be examined.     

Trade Costs,Trade Balances and Current Accounts: An Application of Gravity to Multilateral Trade

In this paper we test the well-known hypothesis of Obstfeld and Rogoff (NBER Macroeconomics Annual 7777:339–390, 2000) that trade costs are the key to explaining the so-called Feldstein–Horioka puzzle. Our approach has a number of novel features. First, we focus on the interrelationship between trade costs, the trade account and the Feldstein–Horioka puzzle. Second, we use the gravity model to estimate the effect of trade costs on bilateral trade and, third, we show how bilateral trade can be used to draw inferences about desired trade balances and desired intertemporal trade. Our econometric results provide strong support for the Obstfeld and Rogoff hypothesis and we are also able to reconcile our results with the so-called home bias puzzle.

Transportation in disaster response operations

Disasters are extraordinary situations that require significant logistical deployment to transport equipment and humanitarian goods in order to help and provide relief to victims. An efficient response helps to reduce the social, economic and environmental impacts. In this paper, we define and formulate a practical transportation problem often encountered by crisis managers in emergency situations. Since optimal solutions to such a formulation may be achieved only for very small-size instances, we developed an efficient genetic algorithm to deal with realistic situations. This algorithm produces near optimal solutions in relatively short computation times and is fast enough to be used interactively in a decision-support system, providing high-quality transportation plans to emergency managers.     

Financial Turmoil, Failed Bank Acquisitions, and Bank Business Lending Behavior

This paper utilizes bank Call Report and FDIC receivership data from 1987 to 1991 to examine the impact of a failed bank acquisition on the growth rate of commercial and industrial (C&I) lending at the acquiring institutions. Using a two-stage least squares model with fixed effects, we find that banks acquiring a failed bank's assets experience a significant decline in both the growth rate of C&I lending and their capital asset ratios in the period of the acquisition. The results support anecdotal evidence that failed-bank borrowers may experience difficulties in accessing credit once their bank fails and underscores the importance of bank-borrower relationships in C&I lending. Finally, the paper provides an alternative explanation for banks' stagnant or declining business lending activity during this period of financial turmoil.     

Connectivity in the Commercial Internet

We study the 'backbone market' in the Internet. After discussing the structure of the Internet, we use an extension of the Katz-Shapiro network model to analyze the strategies that would be used by dominant backbone. We show that a larger backbone prefers a lower quality interconnection than the smaller one. We then analyze a 'targeted degradation' strategy where the larger backbone lowers the quality of interconnection to its smaller rivals in turn. Finally, we show that the qualitative results are robust to the possibility of 'multihoming' by clients.     

The EMU’s Twisted Foundations: How to Use and Misuse Economic Theory

The creation of common European currency is the most ambitious institutional project of the European Union for decades. The idea of launching this kind of currency has merits. However, the implementation of this idea has already led to very negative consequences, as political considerations had priority over economic ones. The article shows how theoretical approaches to common currencies have been evolving since 1960s and why misuse of economic theory provokes inevitable collapse of the European monetary union.     

On an absolute measure of distributional change

This paper tries to combine Kolm's ideas on the measurement of inequality with the recent work of Cowell on the generalized entropy families of income distribution and change indices. A ‘leftist’ measure of income distributional change is proposed, which is invariant to equal absolute changes in all incomes and which has other interesting properties.     

Convergence - the Maastricht approach to economic and monetary union (EMU) in Europe

This article reviews the concept of convergence in the Maastricht Treaty and notes that, while in certain areas the convergence objectives are quite ambitious, in other areas the objectives for the transition period are surprisingly limited. By end-1992, much progress had already been achieved on convergence in a majority of EC countries (and countries applying for membership). Thus, despite the wave of pessimism that followed the recent exchange market crisis, it is still quite possible that a majority of EC members could qualify for monetary union by 1997. However, this would require further significant adjustment in many cases in the fiscal area. Based on the Multimod Model used at the Fund, the deflationary effect of this fiscal consolidation would be small and short lived.