Spatial distribution of US employment in an urban efficiency wage setting

We analyze whether efficiency wages operate in urban labor markets, within the framework proposed by Ross and Zenou, in which shirking at work and leisure are assumed to be substitutes. We use unique data from the American Time Use Survey (ATUS) that allow us to analyze the relationships between leisure, shirking, commuting, employment, and earnings. We confirm that shirking and leisure are substitutes, and present an estimate of this relationship, representing the only empirical test of the relationship between a worker's time endowment and shirking at work. Our findings point to the existence of efficiency wages in labor markets.     

Regional Innovation Policy and Innovative Behaviour: Looking for Additional Effects

This paper aims to evaluate the additionality of innovation policy in terms of innovative behaviours at the regional level. Innovative behaviours are identified both within and across firm and regional boundaries. The role of policy is evaluated for a sample of firms in the Italian region of Emilia–Romagna (ER), exploiting an original, survey-based data set. Propensity score matching is applied to investigate the effects of an innovation subsidy. Funded firms are found to be more likely to upgrade their competencies, compared with similar non-subsidized firms. On the other hand, in most cases, innovation cooperation with other business partners within or outside the region is not significantly affected by policy. Ultimately, the investigated innovation policy in the ER region seems to show what might be termed “cognitive capacity additionality”, rather than “network additionality”.     

Electoral rule and public sector efficiency: Some evidence from Italian municipalities

We study the effect of Law 81/1993, which introduced a different rule for the election of mayors, on the technical efficiency of Italian cities over the period 1998–2006. Since 1993, municipalities below 15,000 inhabitants vote with a single-ballot system, whereas cities above 15,000 inhabitants are subject to a double ballot. We first estimate the output-oriented technical efficiency of municipalities through data envelopment analysis, and then we perform a regression discontinuity design analysis by exploiting the exogenous change in the electoral scheme at the 15,000 inhabitants cut-off. We find evidence that municipalities voting under a double-ballot rule show lower levels of efficiency—in terms of provision of public goods—compared with cities voting under a single-ballot scheme, by about 6.5%. This effect is driven by inefficiencies registered in specific sectors, that is, police, education, and maintenance of roads. Furthermore, the overall lower efficiency of municipalities voting under runoff is related to the different level of educational attainment of elected mayors, whereas it is not driven by the features of Law 81/1993 relating to the number of lists forming a coalition in support of mayoral candidates and to disjoint votes.     

CHANGES IN THE RELATIVE EARNINGS GAP BETWEEN NATIVES AND IMMIGRANTS ALONG THE U.S.‐MEXICO BORDER*

ABSTRACT Using 1990 and 2000 U.S. census data, this study investigates changes in immigrant/native earnings disparities for workers in U.S. cities along the international border with Mexico vis‐à‐vis the U.S. interior during the 1990s. Our findings—based on estimating earnings functions and employing the Juhn‐Murphy‐Pierce (1993, JPE) wage decomposition technique—indicate that the average earnings of Mexican immigrants along the U.S.‐Mexico border improved relative to those accrued by their counterparts in the U.S. interior and by otherwise similar U.S.‐born Mexican Americans between 1990 and 2000. However, when comparing Mexican‐born workers to U.S.‐born non‐Hispanic whites, the immigrant border‐earnings penalty remained statistically unchanged.     

Immunological evidence of Plasmodium falciparum infection in an Egyptian child mummy from the Early Dynastic Period

A 15–18 months old child mummy, presently housed in Turin's Museum of Anthropology, was discovered in Gebelein (Upper Egypt) during excavations carried out by the Missione Archeologica Italiana, most likely in 1914.     

Minero-petrographic characterization of fine ware from Cales (South Italy)

79 samples of black glazed pottery, Terra sigillata, fine common ware, and production indicators were recovered in the archaeological site of Cales and investigated via a multi-analytical program (polarized light microscopy, thermal analyses, XRPD, XRF, FESEM, FESEM-EDS). Among the materials, finds of important production indicators, represented by welded pieces of black glazed pottery and spacers, attest a local production. Polarized light microscopy shows that the inclusions consist of feldspar, quartz, mica, calcite, and lithic fragments of both volcanic and sedimentary nature. Additional information about the mineralogical assemblage comes from the XRPD that revealed the presence of neoformed Ca-silicates, indicating equivalent firing temperatures ranging from 750 to 1050°C. All the samples show a Ca-rich character and an extreme compositional homogeneity, including the production indicators. The comparison with some Ca-rich Campanian clay raw materials shows a greater affinity with the Mio-Pliocene marine clay sediments of the Apennine sector, which include local clays. This allowed us to formulate the first hypotheses about clay sources used to produce fine pottery during the third century BCE to the early imperial period in Cales.     

#spanishrevolution (Respond to this article at http://www.therai.org.uk/at/debate)

The article reports on the street protests that took over Spanish cities earlier in May and June. The protests have been explained as a response on the part of new media democratic networks to the governance of the economic crises by corrupt political and financial classes. We offer here a tentative chronology of the events, and essay instead an argument about a revitalised municipalist tradition, that sees in the plaza the centrepiece of new forms of do‐it‐yourself political action.