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The waters of Puerto Rico harbour the remains of thousands of years of human occupation. The island played a key role in the first decades of European exploration of the New World, and its coasts and estuaries have preserved an extensive record of the island's maritime history, before and after the arrival of the Europeans. The objective of this project is to study Puerto Rico's seafaring history through the investigation of its submerged cultural heritage, with a particular focus on the history of European shipbuilding. In 2008 the authors started with survey on the north coast.
© 2009 The Authors  相似文献   
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Mutual trust among individuals is frequently cited as an important factor in encouraging collective action, particularly in environmental policy settings. Yet the precise role of trust in the collective action process remains uncertain. This article explores the hypothesis that trust is overrated as a cause of cooperation. It initially tests this hypothesis through two case studies of voluntary collective action in a new context: the creation of multiactor Habitat Conservation Plans to protect endangered species. The two cases suggest that institutional mechanisms and political leadership can play an important role in encouraging collective action without relying on trust among cooperators. Besides their theoretical implications, the results suggest policymakers might spend more energy on creating incentives and assurance mechanisms to encourage collaboration, rather than the potentially fruitless task of building of social capital among rival stakeholders.  相似文献   
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The market constitutes the crucial point in the debate which prevailed since the xviiith century in the history of antique economy. Became particularly complex for the Greek world because many historians and anthropologists (like Karl Polanyi) place there the liberty of the market economy as a break with the previous period. History must abandon too dogmatic a position on this emergence of the market and consider first the levels of the constitution of a market place, the agora, beginning with the end of the archaic period. The Greek city intervenes in the way in the exchanges. In this article, we study these interventions on the conditions of the sale and purchase, the practices, the values and the prices, the supplies, so as to understand the real innovation which that represents.  相似文献   
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In the immediate aftermath of Mexico's revolution (1910–1920), increasing numbers of surveyors, agronomists, and agrarian bureaucrats headed out to the countryside to implement the agrarian reforms promised in the decree of 1915 and the Constitution of 1917. In this essay I ask a very basic set of questions about the use, evaluation, and making of spatial knowledge in a revolutionary context: when bureaucrats went in to the field after the revolution, what did they do? What roles, if any, did local inhabitants themselves play in the processes that unfolded? And what constituted the acceptable body of knowledge—the archive—necessary to resolve persistent boundary questions that impeded the reform? I examine these questions by looking closely at the textual and personal interactions between one agrarian bureaucrat and the inhabitants and authorities in the villages to which he had been sent in central Veracruz. Their interactions reveal the degree to which campesinos in the countryside appropriated and deployed different aspects of revolutionary rhetoric in an effort to shape new spaces, or recreate previous ones, in the 1920s.  相似文献   
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This article reports about a metaregression analysis of empirical results generated using data for the northern Netherlands (1988–2002) in order to investigate the ambiguity in results in the population–employment interaction literature. Specifically, the analysis deals with the issue whether “jobs follow people” or “people follow jobs.” The article starts with introducing the basics of quasi‐experimental meta‐analysis and with identifying some advantages of using quasi‐experimental meta‐analysis as compared with the standard meta‐analysis approach. Two subsequent sections document the selection of the population–employment interaction model and salient characteristics of the data set as well as the setup of the primary analyses. A total of 4,050 quasi‐experimental empirical results for the jobs–people direction of causality are generated using different specifications and estimators for a spatial econometric interaction model. The subsequent metaregression analysis reveals that the empirical results are largely shaped by the spatial, temporal, and employment characteristics of the data sampling. The results also appear much more sensitive to different measurements of the model's key variables when compared with alternative specifications of the spatial weights matrix. The main determinant driving empirical results about jobs–people causality are differences in model specification and estimation, as revealed by an inherent bias in parameter estimates and misguided inferences for some of the commonly used specifications. Finally, suggestions for future research are identified.  相似文献   
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