Punctuated Equilibrium Theory and the Diffusion of Innovations

This article builds on punctuated equilibrium theory to evaluate the diffusion of public policy innovations in the United States. The article argues that punctuated equilibrium theory provides a unifying framework for understating three mechanisms leading to the diffusion of innovations: gradual policy diffusion driven by incremental policy emulation, rapid state‐to‐state diffusion driven by policy imitation and mimicking, and nearly immediate policy diffusion driven by state‐level responses to a common exogenous shock. Drawing upon the Bass mixed influence diffusion model, this research generates measures of the coefficients of external and internal influences for diffusion for 81 public policy innovations that have spread across the United States. The article then evaluates how the policy image and direct participation of the federal government contribute to distinct patterns of diffusion over time.     

Site formation processes in caves: The Holocene sediments of the Haua Fteah,Cyrenaica, Libya

Caves have yielded some of the most globally important archaeological sequences, but often their interpretation has suffered from assumptions about cave sedimentary processes. Caves contain distinctive sedimentary environments: this has major implications for the understanding of contained archaeological materials. This paper describes and analyses the Holocene sediments in the Haua Fteah, a sequence regarded as essentially continuous by the original excavator. 50 years after it was first excavated, the Haua's Epipalaeolithic to post-Classical chronological range and rich finds make it still the key Holocene archaeological site in North Africa. The reassessment shows, however, that the sequence is strongly discontinuous and this has major implications for the reinterpretation of the site, as the highly-resolved archaeological record is thus likely to reflect a series of brief occupations, rather than continuous human activity. As with many caves, the sedimentary record in the Haua Fteah is an extremely sensitive indicator of environments and processes in the wider landscape. Secure understanding of sedimentary process, from analysis of the highly individual records found in caves, is essential for full understanding of their contained archaeology.     

Introduction: The International Politics of Resources

Abstract

China, Japan and Korea’s international relations are shaped by the fact that all three are significant importers of resources. This Introduction proposes two conceptual frameworks for understanding the politics that is taken up in the papers of this Special Issue. The first is to consider the extent to which there is an East Asian model of resource procurement. We find that there are some similarities in the approaches taken by all three countries; for example, their development assistance shares a focus on infrastructure building and a reticence to purposefully influence domestic politics. There are, however, also significant differences due in large part to the individual nature of the states as international actors. The second conceptual framework is the broad contemporary theme of the end of Western dominance of the world order. The main way this affects the international politics of resources in Northeast Asia is through the belief that the activities of those countries are threatening in some way. In some cases Northeast Asian approaches to resources are seen as a problem because they are not sufficiently liberal, whereas in others the problem is that Northeast Asian powers are seen as replacing Western powers in exploiting resource-rich developing countries.     

World Heritage Cultural Landscapes

The concept of cultural landscapes has a long and varied lineage, including antecedents in geography and ecomuseums, and can be applied at all scales. In the 1990s, the World Heritage Committee adopted cultural landscapes as an additional category of property as part of its strategy to broaden the scope of World Heritage listings. By July 2006, there were 53 properties inscribed on the World Heritage List and officially recognised as being cultural landscapes. Such recognition is an acknowledgement of the importance of human–environment interactions, especially those of a more traditional type. Not surprisingly, cultural landscapes have their own particular management issues, as well as sharing others with World Heritage properties in general. These properties, however, also present many opportunities to increase people’s understanding of both cultural and environmental values important to the future of humankind on a global level.     

Rural Women,Displacement and the Three Gorges Project

Based on empirical research, this article examines the status, situations and development issues of rural women displaced by the monumental Three Gorges Project (TGP) in China. The study reveals that TGP resettlement is leaving women worse off as family members, as well as worse off than male members. Woman resettlers are more likely to become impoverished than men, partly because women make up the main labour force in agricultural sectors. Most women are unable to achieve occupational mobility in the process of resettlement. Fewer employment opportunities, a gender‐segregated labour market, low level of human capital and social prejudice are principal causes. Land provision for resettlers is inadequate with a lower quality of productivity. Marriage is a means for some women to remain in or move to the reservoir area to improve their socio‐economic status, but bias against granting of ‘resettler’ status to married women and their generally low levels of education and lack of occupational skills work against them. It is imperative that the authorities integrate a gender perspective into policy‐making and design of resettlement schemes.