First Insights into the Technique Used for Heat Treatment of Chert at the Solutrean Site of Laugerie‐Haute,France

The earliest evidence of flint and chert heat treatment was found in the ~21.5–17 ka old European Solutrean culture. The appearance of pyrotechnology as part of the production of stone tools has important implications for our understanding of Upper Palaeolithic technological evolution and the specific adaptations during the last glacial maximum in Europe. However, the techniques and procedures used to heat‐treat rocks during the Solutrean remain poorly understood. No direct archaeological evidence has so far been found and the most promising approach is to understand these techniques by determining the parameters with which flint and chert were heated at that time. In this study, we investigate the heating temperature of 44 heat‐treated laurel‐leaf points from Laugerie‐Haute, using a non‐destructive technique based on infrared spectroscopy. Our results document that most of the artefacts were heated to a narrow interval of temperatures between 250 °C and 300 °C. This indicates a standardized technique that allowed to created similar conditions during successive heating cycles. The implications of these results for our understanding of the technical complexity during the Solutrean must be discussed in the light of different heating techniques used at different places and periods.     

Identifying a technological style in the making of lime plasters at Teopancazco (Teotihuacan,México)

The aim of this article is to focus on the technology of archeological plasters at Teotihuacan (Central Mexico), from the Classic Period (200–650 A.D.), focusing in the study of Teopancazco, a neighborhood center in the city. Petrographic and chemical analyses by OM, SEM-EDS, and LA-ICP-MS were conducted to characterize samples from different constructive phases and sectors of the neighborhood center, to determine the provenance of the raw materials employed in the manufacturing (e.g., volcanic glass shards) and to assess whether a shift occurred in the manufacturing of plasters and in the procurement strategies of raw materials during the different phases. The results of the analyses show that almost no changes occurred in the making of the plaster during more than four centuries and allow us to consider the presence of a technological style in their manufacture, which is characterized by the making of plaster by mixing lime with volcanic glass shards, which in the case of Teopancazco were derived from the Altotonga (Veracruz) magmatic system. The data at our disposal suggest that this style was developed in Teopancazco and later introduced throughout the city of Teotihuacan in the Early Xolalpan phase (A.D. 350), although we still do not know whether the provenance of the raw materials is the same. The wide distribution of this technological tradition could be due to the technological properties of the materials and/or the influence of the intermediate elite who ruled over Teopancazco. The paper confirms that the study of material culture and technology sheds light on broader cultural aspects of ancient societies.     

Can Institutional Reforms Reduce Corruption? Economic Theory and Patron–Client Politics in Developing Countries

The ‘anti‐corruption consensus’ of the dominant development paradigm sees corruption as a governance failure and maintains that graft can be reduced or eradicated through appropriate institutional reforms, such as strengthening the judiciary, designing corruption‐proof regulatory regimes, and establishing anti‐corruption agencies. This article aims to cast doubt on the theoretical rationale of this family of anti‐corruption interventions. The neo‐classical paradigm that informs the consensus is based on a set of unsatisfactory idealizations, which undermine the explanatory power of mainstream economic models of corruption. Drawing on insights from economic sociology and anthropology, the article develops an account of the relationship between corruption, cultural norms and patron–client politics in developing countries. This account shows that corruption is embedded in socio‐cultural structures that are endemic to the process of transition to industrial capitalism — a transition that all developing countries are arguably undergoing, however haltingly. This insight clarifies the theoretical limitations of mainstream corruption economics and provides a framework for constructing more empirically adequate explanations of corruption levels in specific countries. It also suggests that substantially reducing, let alone eradicating, corruption in the developing world may not be possible without fundamentally rethinking the existing set of anti‐corruption strategies and techniques.