THE IMPACT OF LOCAL WAGE REGULATION ON EMPLOYMENT: A BORDER ANALYSIS FROM ITALY IN THE 1950s*

This paper measures the impact of wage zones—compulsory wage differentials at the province level—on Italy's local labor markets during the 1950s. Using spatial regression techniques, it finds that for the industrial sectors covered under wage zones there was an increase in employment when one crossed the border from a high‐wage province into a low‐wage one; the effect diminished, however, as the distance from the boundary increased. The paper also illustrates that the impact on the overall (nonfarm) private sector, which includes both covered and uncovered sectors, was negligible.     

First Trials to Set Up a Microwave Reflectometric Tool for the Survey of Historic Timber Structures

Timber structures can be degraded during their life both by structural problems and by biological degradation factors like fungi and insects. The occurrence of those biodegradation agents could lead to a loss of their structural integrity, in the absence of appropriate maintenance. An early assessment of the decay is even more important when the wooden structures are part of historical buildings, in the interest of conservation of cultural heritage.

This article presents an application of microwave reflectometry for the in situ evaluation of timber structures. The measurement system allows detecting anomalies inside the material in a non-destructive and non-invasive manner.

The reflection coefficient is measured by means of a vector network analyzer (VNA) using a double-ridge antenna which transmits the continuous-wave (CW) microwave signal and receives the signal reflected by the material under investigation.

Measurements on laboratory models demonstrated the feasibility of the method. Results obtained on timber beam sections, compared with the findings of traditional investigation methodologies, demonstrate the potentiality of microwave reflectometry, suggesting its possible usefulness during the diagnostic phase as a non-invasive tool for preliminary screening.     

Seismic vulnerability assessment of historical centers at urban scale

Seismic prevention and mitigation of historical centers have gained a central position within earthquake engineering topics, particularly in areas such as Italy, Greece, and Portugal. Many historical towns in these countries have been strongly damaged, due to the high quantity of old buildings and urban structures and infrastructures. In this article, these aspects are described, modeled, and investigated in terms of structural safety, the goal being the set-up of a comprehensive strategy for seismic prevention and mitigation of a whole historical center. The proposed approach is based on two relevant parts: the first is an urban risk assessment, the second is a prioritization of retrofitting interventions so as to optimally increase urban safety.

The effectiveness of the proposed methodology is shown with reference to a complex case study, the historical center of “Montebello di Bertona”. It is initially modeled as a series/parallel system and then studied by applying seismic reliability methods. Seismic retrofitting interventions are finally prioritized.     

Lega democratica and the making of Italy’s center-left

This article analyzes the history of the Lega democratica, a group of Catholic intellectuals active between 1975 and 1987, and its impact on Catholic debates in Italy’s Second Republic. Despite its small membership, the group’s heritage influenced Italy’s post-1994 center-left and shaped its leadership. Such relevance is explained by describing the Lega democratica’s legacy on four issues. First, on Catholic pluralism: the group was central to a decade-long failed attempt to reconcile different souls of the Italian Catholic laity, which anticipated the end of the Christian Democratic party. Second, after Aldo Moro’s murder the Lega democratica theorized the impossibility of a ‘historic compromise’ between Communists and Christian Democrats: such a development framed their post-1994 attitude. Third, the group’s history reveals a growing generational split on how to achieve political reform (mediation vs. rupture). Finally, the emerging idea of a ‘primacy of civil society’ in the political sphere partly defined the Ulivo coalition’s ideology.