New Economics Papers
on Collective Decision-Making
Issue of 2005‒07‒25
two papers chosen by

  1. Relative Market Share, Leadership and Competition in Concentrated Banking Markets. By Arie Melnik; Oz Shy; Rune Stenbacka
  2. Civil organizations. More politics for less organisation: Aristotle´s social theory By JUAN LUIS MARTINEZ

  1. By: Arie Melnik; Oz Shy; Rune Stenbacka
    Abstract: For many years IO economists devoted attention to the size distributions’ of firms in a given industry. Most studies showed that the size distribution of firms in oligopolistic markets is highly skewed. There are many small firms and a few large firms. There is also a consensus that relative market shares are important and that large firms are, in general, more profitable and durable than small firms. Relative size is also important as a determinant of the structure of the industry. The concept is also central in strategic analysis of business firms and in the formulation of government (regulatory) policy. In this paper we propose to use an empirical measure of market leadership. The measure relies on the assumption that the degree of competition critically depends on how dominant the leading firm is in a given industry. The measure also takes into account the number of “significant” competitors in the market and how close they are to the leading firm in terms of size. The measure is simple to use and easy to interpret. It also yields a critical value that facilitates comparisons between different markets.
    Date: 2005–06
  2. By: JUAN LUIS MARTINEZ (Instituto de Empresa)
    Abstract: There is a lack in analysing Third Sector from a philosophical perspective. It is very complicated to answer many questions that are arising: Why men are concerned to the problems other men are involved in? Which is the driving force of the Social Sector? Why are NGOs legitimated to support social matters? What have NGOs to do in the XIX century? This questions need to be answered to fix correctly future strategy, mission and objectives. It is necessary to build an ethical-political frame to understand how Third Sector works. This paper studies the relationship between NGO and beneficiary, the changes happened in the XX century and the challenges NGO need to face in the forthcoming years.
    Keywords: Non Profit Organisations, Third Sector, Ethics, Ethical-political focus, Relationship, Liberty
    Date: 2004–11

General information on the NEP project can be found at For comments please write to the director of NEP, Marco Novarese at <>. Put “NEP” in the subject, otherwise your mail may be rejected.
NEP’s infrastructure is sponsored by the School of Economics and Finance of Massey University in New Zealand.