X-ray fluorescence analysis and intra-island exchange in the Society Island archipelago (Central Eastern Polynesia)

We apply X-ray fluorescence (XRF) geochemical analysis to a collection of 'Opunohu Valley lithic artifacts from Mo'orea island to investigate the local scale of raw material procurement, adze production, use, and exchange within the Society Island archipelago. We use these data to document the distribution of non-local versus local volcanic artifacts in 'Opunohu Valley house sites, ritual sites, and specialized sites, as a means for establishing intra-site production and consumption patterns, and access to exotic, possibly superior, stone resources, and how these two themes correlate with site function or household wealth and status. Overall, 30% of the artifacts analyzed via WDXRF derive from non-local sources, notably two other islands in the archipelago outside of the political boundaries of Moorean chiefdoms. Our case study thus provides the first direct material evidence of intra-archipelago trade and exchange in the Society Islands. Intra-archipelago trade in adzes was certainly in place by as early as A.D. 1350, if not earlier, and continued up until the time of European contact. In addition, our analyses have identified a local adze production locale in the Afareaitu district of Mo'orea island. The patterns of local versus non-local adze production and exchange strongly suggest that dual interaction spheres were involved. The correlation between adzes and adze-related debris produced from off-island sources and sites with specialized use, which were often reserved for the social, ritual, and political elites in Ma'ohi society suggests that some of the exotic adzes derived from gift exchange between Mo'orea and ruling elites in Tahiti and the Leeward Islands. These adzes from afar would have solidified socio-political and ideological alliances between elites in the Windward and Leeward sectors of the archipelago.     

The spring,the seed and the tree: Gregory of Tours on the wonders of nature

In the preface to his liturgical calendar The reckoning of the course of the stars Bishop Gregory of Tours (538–594) — author also of Ten books of histories and Eight books of miracles as well as of a Commentary on the understanding of the Psalter (of which, however, only fragments are preserved) — declares God's “wonders” of the natural world to be superior to the seven ancient wonders of the world. The reason for this is that the latter, being works of men, are subject to decay and destruction, while the former, as miraculous works of God, are divinely sustained and renewed daily or annually, thereby becoming imperishable. An examination of the associative contexts in which two of these wonders — the sea (enlarged to include water in its various forms) and plant life — occur in the rest of Gregory's works reveals several essential themes of his thinking not only about nature, but also about God, man and society. Thought, for him, nature as a (divinely sustained) system of regularities does exist as a kind of backdrop, sudden unpredictable divine — and sometimes diabolic — action in and through phenomena occupies the center of the stage. Gregory tends to see this action in the shape of what he regards as pre-existing images or patterns of invisible spiritual truth, to which the visible, even material, structure of events must necessarily conform. He shows, too, how this action could reflect as well as meet various needs of the individual and of society as a whole. An association which recurs almost constantly in his treatment of divine action in these natural phenomena, which he sometimes describes as analogous to that in man, is precisely that with the cluster of closely related concepts of renewal, rebirth and creation ex nihilo. Together with what appears as an extreme, as it were ‘poetical’, sensitivity to sudden perceptions and intuitions, something like a longing for and surrender to what he describes as “astonished admiration” may have helped to make possible his recognition of that which he designated as divine creative power in the world of visible reality as well as in man's inner experience. His seeing this as an essential dynamic of the holy may mean that he felt it to be a fundamental need and concern not only of the individual personality but also, more obscurely, of the society in which he found himself.     

SPATIAL DISPERSION OF TECHNOLOGICAL INNOVATION: A CASE STUDY FOR THE NETHERLANDS BY MEANS OF PARTIAL LEAST SQUARES*

ABSTRACT. In this paper the impact of spatial and nonspatial variables on the innovation potential and innovativeness of (small) industrial firms in The Netherlands will be analyzed. Innovation potential and innovativeness will be conceived as latent variables which will be measured by a partial least squares approach. The variables reflecting innovation potential are notably input variables such as internal and external R&D, while innovativeness will be based on output indicators such as the number of product and process innovations. The regional dimension enters our analysis essentially at two levels. First, we will investigate whether more innovative firms are to some extent spatially biased (i.e., on the basis of intrafirm characteristics). Secondly, we will analyze the relevance of an indigenous regional impact, per se. In other words, we will examine whether firms with an equal innovation capacity will differ in actual (i.e., realized) innovativeness as a consequence of different regional conditions. For the first issue, our results indicate that not all regions are equally well-endowed with potentially innovative (small) firms. Our analysis even demonstrates that these firms are underrepresented in regions which are generally considered to offer the most favorable production environment. After compensating for these differences in the composition of the regional set of firms, we demonstrate that an indigenous regional impact per se cannot be identified in The Netherlands.     

Impacts of Multiple-Period Lags in Dynamic Logit Models

This paper will provide an introduction to a new field of research, viz. the sensitivity of the solution trajectory of a dynamic logit model (belonging to the class of discrete choice models) in the light of a multiperiod lag structure. It is well known from recent advances in the area of chaos and turbulence theory that the stability of a dynamic system is critically dependent on various factors, such as threshold values of parameters, initial conditions, and also the lag structure. This paper aims to identify the consequences of different lag structures in dynamic logit models (including also dynamic spatial interaction models). Various simulation experiments will be used to show that the onset of instability of the solution trajectory tends to decrease as the number of time lags increases (depending also on the growth rate of the system).