Knowledge Spillovers and Total Factor Productivity: Evidence Using a Spatial Panel Data Model

This article investigates the impact of knowledge capital stocks on total factor productivity (TFP) through the lens of the knowledge capital model proposed by Griliches (1979) , augmented with a spatially discounted cross-region knowledge spillover pool variable. The objective is to shift attention from firms and industries to regions and to estimate the impact of cross-region knowledge spillovers on TFP in Europe. The dependent variable is the region-level TFP, measured in terms of the superlative TFP index suggested by Caves, Christensen, and Diewert (1982) . This index describes how efficiently each region transforms physical capital and labor into output. The explanatory variables are internal and out-of-region stocks of knowledge, the latter capturing the contribution of cross-region knowledge spillovers. We construct patent stocks to proxy annual regional knowledge capital stocks for N =203 regions during 1997–2002. In estimating the effects, we implement a spatial panel data model that controls for spatial autocorrelation as well as individual heterogeneity across regions. The findings provide a fairly remarkable confirmation of the role of knowledge capital contributing to productivity differences among regions and add an important spatial dimension to discussions in the literature by showing that productivity effects of knowledge spillovers increase with geographic proximity.     

The Application of the European Spatial Development Perspective: Evidence from the North-West Metropolitan Area

As a strategic document, the European Spatial Development Perspective (ESDP) wants to be 'applied' rather than 'implemented'. Rather than giving shape to spatial development, application is the shaping of the minds of the actors in spatial development. The latter are not passive recipients of messages. They actively explore options, reinterpreting messages on the way. Conformance of outcomes to intentions cannot be assumed. Application is not a separate phase either. Application includes making new working arrangements and elaborating planning documents to make them fit emergent situations. Judging from the ESDP and from how its ideas are being pursued, its makers are well aware of this. Research into the application of the ESDP in the north-west metropolitan area (NWMA) Interreg IIc programme confirms this. So the ESDP may be anything but a paper tiger.     

The Geography of Air Transport in Australasia: a Global Perspective

The air transport industry world-wide is undergoing radical restructuring, largely driven by the effects of deregulation, enhanced competition and the general processes of globalisation in the world economy. The impacts of these changes vary spatially, however, as local and historical forces remain important in shaping the geography of air transport. This review has been prompted by the collection of papers on the geography of air transport published in a recent issue of Australian Geographical Studies. It seeks to explore the wider international context of these researches, using the Australasian experience to analyse the ways in which local factors interact with global processes to produce a complex mix of global similarities and regional particularities in air transport provision.     

Learning in Single Hidden-Layer Feedforward Network Models: Backpropagation in a Spatial Interaction Modeling Context

Learning in neural networks has attracted considerable interest in recent years. Our focus is on learning in single hidden-layer feedforward networks which is posed as a search in the network parameter space for a network that minimizes an additive error function of statistically independent examples. We review first the class of single hidden-layer feedforward networks and characterize the learning process in such networks from a statistical point of view. Then we describe the backpropagation procedure, the leading case of gradient descent learning algorithms for the class of networks considered here, as well as an efficient heuristic modification. Finally, we analyze the applicability of these learning methods to the problem of predicting interregional telecommunication flows. Particular emphasis is laid on the engineering judgment, first, in choosing appropriate values for the tunable parameters, second, on the decision whether to train the network by epoch or by pattern (random approximation), and, third, on the overfitting problem. In addition, the analysis shows that the neural network model whether using either epoch-based or pattern-based stochastic approximation outperforms the classical regression approach to modeling telecommunication flows.     

Demographic Modeling of the Geography of Migration and Population: A Multiregional Perspective

This article focuses on the development and evolution of migration and population redistribution modeling within the spatial context of multiregional demography. It begins in 1965, when the state-of-the-art consisted largely of ideas and techniques imported from other disciplines (regression analysis, gravity models, Markov chains, and matrix cohort-survival population projection models) and then continues on to tell the story of multiregional demography, its evolution and emergence as a fully developed paradigm for studying the spatial dynamics of migration and population redistribution and, more recently, its approach for estimating the necessary migration input measures from inadequate data.     

Variable Geography: America's Mental Maps of a Greater Europe

American backing for the process of European enlargement into central and east Europe remains strong despite differences of strategic interest, foreign policy choices and, during the past decade, a certain US ambivalence towards the trans-atlantic relationship. Drawing on a typology of 'mental maps', the author illustrates how the many and varied American ideas of what a future Europe might look like have guided US (and European) leaders in their attempts at defining this new post-Cold War Europe. Whether these maps can combine into clear policy is debatable. Yet the overall American mental map of Europe is becoming clearer. It includes Turkey, and it may include Ukraine and even Russia. However, concerns remain among US officials that this conception of a Greater Europe, equipped with its own foreign policy and military force, may prove a mixed blessing.     

From a Geography of Labor to a Labor Geography: Labor's Spatial Fix and theGeography of Capitalism

Mainstream neoclassical economic geography and its Marxist critique have largely failed to incorporate active conceptions of working class people in their explanations of the location of economic activities. Neoclassical approaches tend to conceive of workers simply as factors of location, whereas Marxist approaches primarily focus on how capital structures the economic landscape in its search for profit and frequently relegate labor to the status of "variable capital." Both approaches present Geographies of Labor. They have not really examined how workers try to make industrial landscapes. In contrast, I argue that workers have an interest in how the economic geography of capitalism is made; consequently, they seek to impose what we might call "labor's spatial fix" and so play an active role in the unevenly developed geography of capitalism. Examining how workers try to develop their own spatial fixes allows us to incorporate a more active sense of workers as geographical agents into understandings of the production of space under capitalism. Recognizing that workers' efforts to create "labor's spatial fix" are significant allows us to theorize how workers attempt to make space as an integral part of their social existence (a Labor Geography ) and so to write less capital-oriented economic geographies.     

Building an Automated Modeling System to Explore a Universe of Spatial Interaction Models

A methodology is described for harnessing the power of supercomputer hardware to build an automated modeling system. The problems of applying this new approach to mathematical modeling in geography are discussed by reference to the design of better performing spatial interaction models. It is also possible that the results may provide clues about new theories and knowledge.     

The Spatial Dispersion of Informal Investment at a Regional Level: Evidence from the UK

Although there have been various studies on the geographical specialization of venture capital in the UK, there remains a gap in the research on regional differences in the behaviour of those informal investors who make a significant contribution to the funding of entrepreneurial ventures. Utilizing a unique data set from the Global Entrepreneurship Monitor project, this study will estimate the level of informal investment activity across the different regions of the UK. The relationship between informal investment and early stage formal venture capital availability is also examined to determine which areas display the greatest funding gaps in the provision of equity finance. It shows that while formal and informal investments are heavily concentrated in highly prosperous areas such as London and the South East of England, informal investments make a larger relative contribution to early stage and expansion equity capital within poorer regions.     

Identity and Image of Indian Geography: The People's Perspective

Geography is among the late beginner subjects at higher education level in India. As revealed in scholarly writings, this discipline had been subjected to discrimination for colonial reasons and continues to lurch even today. There have been many academic writings on Indian geography. This paper is an attempt to look at the discipline from the people's side. Against the backdrop of a brief history of Indian geography and current debates therein, various issues are discussed as revealed by ordinary people during a questionnaire-based survey across different sections of society and also focused informal discussions.     

The Role of Regional Policies in Promoting Networking and Innovative Activity: Evidence from Small Finnish High-tech Firms

The success of high-technology firms is strongly dependent on their innovation capacity and network relationships. There is a growing recognition that few firms are able to innovate in isolation. Cooperation can provide access to a complementary knowledge base and resources, and speed up the innovation process of firms. Regional developers are criticized for their inadequate ability to integrate themselves into the regional networks and innovation processes of firms and their ability to determine firms' needs for innovation and networking. The research topic of this study concentrates on the possibilities of regional developers of influencing the operational environment of high-tech firms through the development of networks and innovation activity of firms. Of particular interest are the micro-level policies and concrete actions by regional developers for meeting the needs of firms. The data used are based on interviews addressed to high-tech firms located in Jyväskylä Science Park in Finland.     

Modeling Interaction in a System of Markets

This paper develops a nested family of market interaction models for the general case of spatial or aspatial goods. Market structure effects are identified in the form of intraregional and extraregional competition. The competing destinations and competing central place models are shown to be special cases of the general modeling framework. An empirical example, using survey data collected from Chicago-area Management and Public Relations (SIC 874) firms, illustrates how the family of models may be used to identify market structure.     

The Geography of Need: Spatial Distribution of Barriers to Employment in Metropolitan Detroit

Although several studies examine the barriers to employment that limit the employability of welfare recipients, they have not analyzed how these barriers might be different for residents of central cities than for residents in surrounding suburban areas. We consider how the prevalence of barriers to employment varies by race and place in metropolitan Detroit. We find that the prevalence of mental health, substance abuse, and domestic violence barriers is higher in suburban areas, and that structural barriers are higher in the central city.     

地理的视角:中国历史地理研究与教学的前沿

2011年2月19日到20日,在美国中南部的阿肯色州州会小石城举行了"中国历史的地理视角国际学术研讨会",藉以推广地理学在传统汉学界的影响。本次会议由阿肯色州大学小石城分校(University of Arkansas,Little Rock)组织,得到了中国大陆、中国台湾、英国、德国、白俄罗斯与美国等各地学者的高度重视。19日全天开会,总共提交12篇论文,论点创新,时地跨越很广,从古代到当代,从华西北到华东南,收获相当丰富。主要演讲者是伊利诺斯州大学芝加哥分校(University of Illinois,Chicago)的何特勒(Laura Hostetler)和哈佛大学(Harvard University)的包弼德(Peter Bol)。20日上午包弼德举行颇有启示的讲座,即关于"中国历史地理信息系统"的研究与教学实用。     

The Determinants of Regional Sourcing by Multinational Manufacturing Firms: Evidence from Yorkshire and Humberside,UK

An examination of the factors influencing the extent of regional sourcing by multinational manufacturing firms using data collected by interview from 50 foreign- and UK-owned plants in Yorkshire and Humberside. The evidence shows that higher levels of regional sourcing are observed where certain demand characteristics coincide with strengths in the supply potential of the region. A 'corporate filter' reduces regional sourcing. There were no differences in regional sourcing between foreign- and UK-owned multinationals. The findings identify barriers to policy aspirations of increased regional sourcing and emphasize that any policy initiatives should target the plants of domestic, as well as foreign, multinational enterprises (MNE).     

The Role of Leading Firms in the Evolution of SME Clusters: Evidence from the Leather Products Cluster in Florence

Clusters that emerged in the past have changed during the latest decades, so that today the research challenge in economic geography is on their evolution over time. The aim of this paper is to update the evolutionary path of SME Italian clusters, which faced the economic crisis are undergoing a process of decline in the number of firms. Furthermore, changes in the techno-economic landscape and in the competitive environment have generated new challenges. In this context, some leading firms, able to connect local resources (and firms) to global networks, have emerged over time and today they act as a gatekeeper. The focus will be on local networks interacting with leading firms and particular attention will be devoted to the pattern of co-evolution and to the geographical dimension of this co-evolutionary process. To empirically verify if other firms in the cluster may co-evolve with the leading firm over time, a deep analysis of the Gucci network in the leather products cluster in Florence will be carried out.     

国防地理视野中的抗战正面战场

中国国防的形态从古代到近代经历了巨大变化,先是边防(陆防)之外有了海防,继则又有了空防。伴随这一过程,中国国防地理形势也在发生变化。全面抗战爆发前,中国国防地理形势受制于两方面的影响:一是中国政治中心南移导致的国防重心南移,二是日本在华不同地区形成的既存势力格局。此外,国民政府在全国不同地域统治力量的强弱也影响着国防地理形势。战前朝野对中国国防地理有过较多探讨,认识大体接近。为因应未来战争,国民政府分别对陆、空、江海防以及战略大后方做了布局。全面抗战爆发后,正面战场陆军作战主要在重要铁路干线和国际交通线展开;空军作战先集中于东南沿海地区,渐次转向华中、西南;海军作战主要沿长江航道展开,辅之以沿海要塞作战。正面战场的作战体现了国民政府"以空间换时间"的整体抗日战略。     

博物馆实践与博物馆理论的关系——以博物馆展览为视角

博物馆学是一门后设学科,世界各地的博物馆都是用藏品来呈现人类与其环境所发生事物的真实场所,所以它是在产生功能之后才建立起模式与理论。中国博物馆机构的建立虽然是输入的“舶来品”,但是也有着相同的对收藏对象的运作、管理与使用之目的,所以在呈现给公众观赏的展览上,如何达成文化遗产讯息的传承,用观众对展览主题的认知、态度与需求...