Trace element and Pb isotope provenance analyses of native copper in northwestern North America: results of a recent pilot study using INAA,ICP-MS,and LA-MC-ICP-MS

Several indigenous groups in northwestern North America used native copper prior to EuroAmerican contact. The Arctic, Subarctic, and Northwest Coast culture areas all have archaeological finds and geological sources of native copper. The copper-rich region of south-central Alaska and southwestern Yukon has often been credited as the source of archaeological native copper found on the Northwest Coast despite the presence of native copper sources further south. This paper presents the results of a pilot study using INAA, ICP-MS, and LA-MC-ICP-MS to assess the potential for native copper provenance research in Alaska and the Yukon Territory. Discrete native copper sources could be distinguished from one another intra-regionally. Difficulties associated with future native copper provenance research in northwestern North America are discussed.     

Differences in Survival Strategies among Footwear Industrial Districts: The Role of International Outsourcing

During the 1990s, a further development of the industrial district model was observed in some developed countries and industrial sectors. Due to the intense process of globalization, footwear district firms have gradually relocated some manufacturing activities through an international extension of their business networks. In this manner, the traditional pattern of integrated shoemaking is being replaced by a global supply chain stretching across different countries and cultures. Even though Spain has always been positioned at the top of the rank of footwear exporters, little attention has been paid to how Spanish footwear districts are handling the global competition and strategies implemented in order to achieve superior efficiency rates. This paper attempts to describe the international outsourcing activities (one of the most expanded strategies) in four footwear industrial districts. To reach our objective, data about imports of components and outward processing trade in provinces of the districts considered are deeply analysed. Special consideration has been paid to differences between provinces and districts. Finally, based on the issues reviewed and results obtained in previous sections, our paper includes conclusions and implications for policy makers and practitioners.     

Search and Fetter's Law of Markets

Fetter's law, a classical result of location theory, is respecified to include search costs. Then the implied partition of the market space is derived.     

La espada,la cruz y el padrón: soberanía,fe y representación cartográfica en el mundo ibérico bajo la monarquía hispánica, 1503–1598

Antique Maps of Wales. By John Booth. Montacute, Somerset, 1977. pp. xiv, 132, illustrated, £4.95.

Sir Francis Drake. An exhibition to commemorate Francis Drake's voyage around the world, 1577–1580. Pp. 128, illustrated. British Museum Publications, 1977. Price £2.50.

Nautical charts on vellum in the Library of Congress. Compiled by Walter W. Ristow and R. A. Skelton. Washington 1977.

Collection for the History of Cartography. By Roy. V. Boswell. Fullerton, California: Published by Roy V. Boswell, 1976. pp. 41. (typewritten and xeroxed in an edition of 100 copies).

Maps for an emerging nation: Commercial cartography in nineteenth century America. By Walter W. Ristow. Library of Congress, Washington, 1977, pp. 66, 20 figures, U.S. $5.00.

The Nature of Maps. Essays toward Understanding Maps and Mapping. By Arthur H. Robinson and Barbara Bartz Petchenik. Chicago and London, The University of Chicago Press, 1976, pp. 138.

Lee, Chan, Old Maps of Korea. The Korean Library Science Research Insitute, Seoul, Korea, 1977, 249 pages (22,000 Hwan, $50.00).     

A new phoenix? Large plants regeneration policies in Italy

The fall of employment in manufacturing that the world's most advanced economies have been experiencing in the past 40 years has triggered a number of policies, undertaken in several countries. In this paper, we evaluate the effectiveness of a place-based policy, carried out in Italy, aimed at both generating private investments and increasing employment in areas affected by deep industrial decline. By means of an instrumental variable identification strategy, we show that the program has been largely unsuccessful.     

A Constructive Genetic Algorithm for Discrete Dispersion on Point Feature Cartographic Label Placement Problems

This article concerns the point feature cartographic label placement (PFCLP) problem, which is a NP‐hard (Non‐deterministic Polynomial‐time hard) combinatorial problem. It is considered that when all points must be labeled and overlaps are inevitable, the map can be more readable if overlapping labels are placed in a dispersive way, that is, overlapping labels are distant from each other. This work presents a constructive genetic algorithm (CGA) for the discrete dispersion PFCLP that utilizes the notion of masking to preserve optimal subsequences in chromosomes. We also define the discrete dispersion PFCLP as a mixed integer linear programming model, considering the problem of the minimum number of labels in conflict as well. The computational results validate our CGA approach using instances up to 5,046 points.