Pre-Clovis in Texas? A critical assessment of the “Buttermilk Creek Complex”

Lithic artifacts from the lowest strata of the Debra L. Friedkin site, located on Buttermilk Creek in central Texas, have been interpreted as an undisturbed pre-Clovis assemblage (Waters et al., 2011a). Stone tools and debitage were recovered from sediments stratified just below diagnostic Clovis artifacts and dated by OSL to between 13.2 and >15.5 cal kya. Invoking commonly observed cultural and natural site formation processes, we offer an alternative explanation of the “Buttermilk Creek Complex” as a Clovis assemblage in secondary association with the dated sediments.     

From Clusters to Platform Policies in Regional Development

This short briefing paper addresses the next stage in the evolution of regional development policy. It is clear that the cluster idea has held sway in this field for some 20 years. By now, practitioners and academics are widely sceptical of policy capabilities to create let alone build clusters. Recessionary times make this more difficult. Moreover, where some recent success can be seen, it is associated with command economies such as China where normal market and democratic barriers to large public investments in such measures are absent. Nevertheless, clusters exist in many places and there is evidence, displayed in this paper, that in some regions they have mutated into multi-cluster platforms. Now, as regions seek to rebalance, platform policies are evolving and being implemented. This paper shows how this is in part a response to “Grand Challenges” and the emergence of “challenge-driven” innovation.     

Integrating Archaeological Theory and Predictive Modeling: a Live Report from the Scene

Archaeological predictive modeling has been used successfully for over 20 years as a decision-making tool in cultural resources management. Its appreciation in academic circles however has been mixed because of its perceived theoretical poverty. In this paper, we discuss the issue of integrating current archaeological theoretical approaches and predictive modeling. We suggest a methodology for doing so based on cognitive archaeology, middle range theory, and paleoeconomic modeling. We also discuss the problems associated with testing predictive models.     

CASH TRANSFERS AND POVERTY REDUCTION IN CHILE*

ABSTRACT The headcount ratio in Chile has declined from 40 percent to 14 percent since 1987. However, most analysis of this reduction uses national and regional poverty statistics. In contrast, we employ poverty mapping methodologies to find heterogeneity in the effectiveness of transfers across counties. To better understand this variation, we explore the roles of characteristics of the local population, structural features of the county, and geography. The greatest reductions in poverty occur in rural households, yet population characteristics and geography are also important. These findings suggest that targeting at low levels of aggregation can deliver further reductions in poverty.     

Notes from the Iberian Algae Belt

In this paper, we explore regional innovation in the use of varieties of algae as inputs to industrial processes. It is important to understand that algae are one of nature's most bountiful products, with an almost infinite variety of applications. Algae have received prominence in the research literature because of the strong evidence that they can make a major contribution to the production and—importantly—storage of renewable energy. Following the introduction to this paper, Section 2 reviews the nature and application of algae in two main aspects of clean energy production: first as biogasolene or biodiesel; second as large-scale storage batteries for electricity. The latter is particularly important as one classic deficiency of electricity is the difficulty in storing it for lengthy periods other than in short-life batteries. However (Section 3), there are other uses for algae, ranging from aquaculture to medicine and the production of cosmetics. In the southwest corner of the Iberian Peninsula, between Faro in Portugal through Huelva to Cadiz in Spain, is a significant research and commercial algae production zone. The paper describes the key system elements in play in this trans-border innovation network and considers prospects for new path creation towards biofuels, the main research and application centres for which are in the San Francisco Bay Area in California. Conclusions and recommendations for policy action are then drawn.     

THE FUTURE ENVIRONMENTAL AGENDA OF THE USSR

A set of contemporary and increasingly urgent environmental problems in the USSR are surveyed, emerging as a result of continued development and technological change and mandating, in effect, a new environmental agenda. Analysis of specific problems reveals ways in which the new agenda must differ from the old: it must be more ecologically based, more comprehensive, and more global in scope. A concluding section examines how this agenda appears to be evolving over time, and identifies components which will be essential in order for it to effectively address the environmental challenges of the next century.