Regional Aspects of Collaborative Invention Across National Innovation Systems

Abstract

This article analyzes the association between intraregional collaboration and levels of invention in nine developed countries. Patent data of the Organization for Economic Co-operation and Development (OECD) regions of nine inventive countries are used to determine if a significant positive correlation exists between reliance on own region partners and overall invention. Strong intraregional collaboration is also related to the knowledge bases of technologies and to the tendency for inventors to team up in the first place. Results show strong evidence that inventors in highly inventive regions co-patent more with own region partners and that they have a greater tendency to collaborate in the first place. Support for the hypothesis that information and computer technologies favour own region collaboration and that more biotechnology invention encourages external alliances is mixed. However, there is far less evidence that more biotechnology invention encourages more external alliances. Variation in the results between countries is interpreted as evidence that national innovation systems have distinctive internal locational attributes. The findings refute the assertion that strengthening aspatial network proximities has eclipsed the pivotal role of intraregional linkages in technological advance.     

Cesium magnetometer surveys at a Pithouse Site near Silver City,New Mexico

The La Gila Encantada Site is located on an isolated ridge top north of Silver City, New Mexico in an area defined culturally as the Mimbres Mogollon region. The 180 m × 80 m (14400 m²) sized site was originally recorded as a dense scatter of ceramics, lithics, and ground stone along with a number of surface depressions that appear to represent pithouses. Cesium magnetometer surveys were conducted to identify hearths, pithouse boundaries, and activity areas outside of pithouses in support of archaeological investigations, and to test this instrument's ability to image these features. This paper presents a characterization of the magnetic signature of a pithouse as a magnetic high in the center caused by the central hearth, low magnetic variability along the floor of the house, and then increased magnetic variability at the pithouse boundary. This characterization was successfully confirmed for three pithouses using cesium magnetometery and archaeological excavation.     

Craft Production, Exchange, and Political Power in the Pre-Incaic Andes

This article explores the relationship between craft production, exchange, and power in the pre-Incaic Andes, with a focus on recent archaeological evidence from Chavín, Nasca, Tiwanaku, Wari, and Moche. I argue that craft production and exchange in concert with materialized ideologies played vital roles in the development of political power in the Andes. In later state societies, craft production, exchange, and materialization were critical in maintaining and legitimizing established political power.     

Protrusion, Bioturbation, and Settlement Detection during Surface Survey: The Lowland Maya Case

In upland settings in humid and semihumid temperate and tropical environments, bioturbation is a major factor in the burial of modest architectural remains, which are abundant components of the settlement systems of complex societies. Surface survey, favored by archaeologists of complex societies as a settlement detection method, seldom is appropriate for discovering architectural remains buried through bioturbation. Where the focus of analysis includes settlement represented by architectural remains, surface survey is appropriate only where all or a representative sample of all types of architectural remains are protrusive. Protrusion describes a relationship (affected by climate, environment, topography, and cultural variables) between the height of a ruined building and the depth of the biomantle, which is the zone of bioturbation. To enable archaeologists to assess the appropriateness of settlement detection procedures, including surface survey, I propose a scheme that classifies architectural remains in terms of their protrusion, building height, and visibility characteristics. The scheme can be employed to determine if and why architectural remains are protrusive in particular study areas. To demonstrate its analytical utility, I apply the scheme and the model of building burial through bioturbation that underlies it to the problem of Maya invisible settlement. I conclude that in the Maya lowlands of Mesoamerica, building remains buried through bioturbation are a more abundant settlement category than many archaeologists have supposed.     

The International Air Linkages of Australian Cities, 1985–1996

International air linkages are one of the important features differentiating the development of metropolitan areas, as the location of many activities now requires frequent and diverse international contacts. This paper explores the consequences of this for Australia by tracing the changes in international airline linkages over the past decade. In that time, the geography of the nation's air linkages have shifted in favour of the Asian nations to our north, reflecting the shifts in trade and immigration. Some cities have felt more of that change, with Cairns and Brisbane especially prominent due to their roles as gateways for the tourist industry. However, these shifts have yet to weaken the diversity of contacts in Melbourne and Sydney, indicating that the underlying geography of business still has a strong influence on the international contacts made from each city.     

The Effect of Federal Wilderness on County Growth in the Intermountain Western United States

A consistent theme in the debate over federally-owned wilderness areas in the intermountain western United States is that local economies may be adversely affected by such a designation. Yet empirical evidence of this negative effect is rarely offered. This paper finds, for a sample of 250 nonurban counties in the eight states of the intermountain west, no evidence that the existence of federal wilderness is directly or indirectly associated with either population-density or total-employment-density growth between 1980 and 1990. This empirical finding is based on a disequilibrium model of population and employment growth. Furthermore, much of the economic concern over wilderness designation centers on its perceived effect on resource-based industries. Yet, this study finds no empirical evidence that county-level resource-based employment is adversely affected by the existence of federal wilderness.