Despite significant progress in recent years, the evolution of commons over the long run remains an under-explored area. During the last years an international team of historians has worked under the umbrella of the Common Rules Project in order to design and test a new methodology aimed at advancing our knowledge on the dynamics of institutions for collective action -in particular commons. This project aims to contribute to the current debates in three different fronts. Theoretically, it explicitly draws the attention to change and adaptation in the commons -contrasting with more static analyses. Empirically, it highlights the value of historical records as a rich source of information for longitudinal analysis of the functioning of commons. Methodologically, it develops a systematic way of analyzing and comparing commons' regulations across regions and time, setting a number of variables that have been defined on the basis of the "most common denominators" in commons' regulations across countries and time periods. In this paper we introduce the project, describe our sources and methodology, and present the preliminary results of our analysis.

En este artículo se presentan nuevos cálculos del coste de la vida y de los salarios reales en la agricultura del sur de Navarra entre 1781 y 1936. La tipología de salarios que se maneja incluye a los trabajadores eventuales y a los permanentes, así como a hombres y a mujeres.Los índices sugieren un aumento de la capacidad adquisitiva tras las guerras napoleónicas, un estancamiento y deterioro del nivel de vida durante la mayor parte del siglo XIX, y un nuevo incremento durante el primer tercio del siglo XX. Con todo, se advierten importantes diferencias dependiendo del segmento de mercado de trabajo de que se trate.

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This article studies the role of property rights in social change using the case study of the small village of Sansomáin in Northern Spain between the years 1509 and 1957. The sources are mainly notary and court records and the focus is on the identity of neighbours as the foundation of civil and political rights during the Old Regime, and its translation into the new constitutional order that emerged after the era of the French Revolution. In the village studied, the failure of the Spanish liberal regime in extending the right of citizenship involved the usurpation of the commons by two foreign owners at the expense of the families residing there.

José-Miguel La n a-Be r a s a i n * Dealing with Delation in Turbulent Times.Agricultural Markets and Rural Management in Southern Navarre (Spain), 1817-1833**