Publications

2010

• Is Ill-Being Gendered? Suicide, Risk for Suicide, Depression and Alcohol Dependence
  
  • Cousteaux Anne-Sophie
  • Pan Ké Shon Jean-Louis
  Revue française de sociologie, Presses de Sciences Po / Centre National de la Recherche Scientifique, 2010, 5 (51), pp.3-40. Ill-being arises from the multiple interactions involved in a specific tension, that between an individual with social characteristics and the values and norms promoted by the society that individual lives in. The way a person expresses ill-being tends to vary by gender: depression and suicidal behavior are more common among women, whereas suicide and alcohol dependence are more common among men. Focusing on a single way of expressing ill-being could therefore lead to misinterpretation of results. While divergences among ways of expressing ill-being expose the specificities of those ways and their differentiated effects for particular groups, convergences make it possible to arrive at conclusions that can be generalized to all individuals. Gender-specific indicators have been developed on the basis of recent data that capture major changes in the form of the couple and household types. These indicators can be used to examine whether and to what degree women are “protected” against ill-being by having an intimate partner and children. These elements are usually determined on the basis of suicide studies alone. (10.3917/rfs.515.0003)
  DOI : 10.3917/rfs.515.0003
• Vertical relations
  
  • Miklos-Thal Jeanine
  • Rey Patrick
  • Vergé Thibaud
  International Journal of Industrial Organization, Elsevier, 2010, 28 (4), pp.345-349. The paper presents recent advances in the analysis of successive oligopolies characterized by “interlocking relationships”, where competing upstream suppliers deal with the same set of competing downstream partners. We first highlight the extent to which interlocking relationships alter competition, and may allow vertical restraints such as Resale Price Maintenance to eliminate it upstream as well as downstream. Modeling difficulties, such as the inexistence or a large multiplicity of equilibria, however arise. After reviewing how similar issues have been successfully addressed in the case of a single supplier, we draw lessons for more general multilateral settings. (10.1016/j.ijindorg.2010.02.007)
  DOI : 10.1016/j.ijindorg.2010.02.007
• Transaction Costs in Financial Models
  
  • Bouchard Bruno
  • Jouini Elyès
  , 2010, pp.7. Standard models for financial markets are based on the simplifying assumption that trading orders can be given and executed in continuous time with no friction. This assumption is clearly a strong idealization of the reality. In particular, securities should not be described by a single price but by a bid and ask curve. As a first approximation, one may assume that the bid and ask prices do not depend on the traded quantities which leads to models with proportional transaction costs. These models have attracted a lot of attention these lasts years, mostly because their linear structure allows to develop a nice duality theory as in frictionless models.