THE TENTH BIENNIAL CONFERENCE OF THE INTERNATIONAL ASSOCIATION FOR THE STUDY OF COMMON PROPERTY FUZZY ACCESS RIGHTS IN PASTORAL ECONOMIES: CASE STUDIES FROM ETHIOPIA By Dejene Aredo Department of Economics Addis Ababa University Email:
[email protected] May 2004 Addis Ababa 1. INTRODUCTION The standard approach to the analysis of property rights recognizes only clearly-defined property right regions and considers fexibley rights as causes for negative externalities. In some cases, the standard approached entertains the notion of “tragedy of the commons” with reference to common property regimes, a concept often confused with open access regimes. The basic weakness of the standard approach arises from the fact that it neglects the complex forms of rights, which are widespread in traditional societies (Aredo 1999), in general, and in pastoral societies, in particular. Of course, the complexity of property right regimes in pre-industrial societies has been investigated by some authors. For example, Ostrom (1998), who argued that “the world of property rights is far more complex than simply government, private and common property”, has identified a hierarchy of five classes of rights including the right of access, withdrawal, management, exclusion, and of alienation. Corresponding to each of these right regimes, she identified five classes of property rights holders, i.e., authorized entrants, authorized users, claimants, proprietors, and owners. However, although her thesis is relevant to the analysis of undefined access rights, Ostrom persisted with the idea that rights should always be defined if negative externalities have to be avoided. However, as suggested by the theory of “fuzzy access rights”, access rights should not necessarily be defined to avoid negative externalities.