This paper studies corporate risk management in a context of financial constraints and imperfect competition in the product market. The paper shows that interactions between firms affect their hedging strategies. As a general rule, firms' hedging demands decrease with the correlation between...

This paper analyzes the interactions between competitive (wholesale) spot, retail, and forward markets and vertical integration in electricity markets. We develop an equilibrium model with producers, retailers, and traders to study and quantify the impact of forward markets and vertical...

This paper analyzes the interactions between vertical integration and (wholesale) spot, forward and retail markets in risk management. We develop an equilibrium model that fits electricity markets well. We point out that vertical integration and forward hedging are two separate levers for demand...

Hospital heterogeneity is a major issue in defining a reimbursement system. If hospitals are heterogeneous, it is difficult to distinguish which part of the differences in costs is due to cost containment efforts and which part cannot be reduced, because it is due to other unobserved sources of...

In this paper, we implement Granger causalty tests using panel data as methodology perfected by Hurlin (2004, 2005) and Hurlin and Venet(2004). We consider the bilateral trade patterns of the European Union with 17 countries over the period 1976-2000. We show that for the whole sample, there are...

This article analyses an individual microcredit program developed in Rio’s shantytowns. We study its selection criteria and the determinants of borrowers’ repayment performance. More specifically, this work aims to study the link between informality and credit discipline. First, we question...

Using panel data from Argentina during the 1990’s, this paper concludes that, in Argentina, income ‘mobiles’ did change over time. Among the household variables with a structural relation with income dynamics, we find university education, protecting from income declines though not...

The possible existence of a link between the structure of firms' equity and profitability is a recurrent question among economists. The primary objective of this article is to provide a critical analysis of the two most recent hypotheses on the subject, one put forward by Demsetz, and the other...

We investigate the capital structure dynamics of a panel of 766 firms from five Western Europe countries: France, Italy, UK, Germany and Switzerland over the period 1996-2007. If firms adjust their capital structure towards an optimal level with adjustment costs affecting this optimization...

In the theoretical framework of corporate governance this article studies the efficiency of the control exerted by the ownership structure and the board of directors on managers. The confrontation of entrenchment theory and agency theory allows to determine the necessary conditions of the...