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ABSTRACT. An accounting framework is presented that can be used as a basis for a regional general equilibrium economic model that meaningfully incorporates both real and financial activity. The accounting framework describes a circular flow from regional income to credit base, and back to regional income, including the balance of payments identity. Both real market transactions and capital stock changes are explicitly recognized. Linkages between real activity flows and sectoral balance sheets are highlighted. Financial activity is recognized as a service, and all assets are assumed to be valued at market prices.  相似文献   
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An increasingly well‐developed body of research uses neighbourhood walks to better understand primary school children's experiences of local environments, yet virtually nothing is known about preschool‐aged children's connections to their neighbourhoods. A reason for this omission is the commonly held view that preschool children lack competency to reflect on lived environments beyond playgrounds, kindergartens, and other confined settings that dominate early childhood. However, preliterate children walk around, use, and create intimate relationships with local environments as shown by 10 children aged 3–5 years from Dunedin in New Zealand during go‐along interviews. We asked each to walk us around their locale, explaining and pointing out favourite and less beloved places and activities. In this article, we advance two arguments: first that preschoolers are knowledgeable meaning makers of place; second that walking with them is a key step to understanding their life worlds and provides a way for preliterate and preverbal children to demonstrate knowledge and understanding of their spatial worlds, including as research participants. We challenge the idea that children of this age lack large‐scale spatial competency and understanding. Walking with them generated an in‐depth appreciation of their experiences of environments and revealed deep connections they had with their locales at varied scales. The work enables us to offer novel insights into spatial competency, sociospatial complexities, and the multiple dimensions of young children's wellbeing affordances in urban environments. Such insights are highly relevant for geographers, planners, and others who shape children's urban environments.  相似文献   
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Many timber finds lack some or all of the outer, sapwood rings formed in the years just before felling. In order to estimate felling date once the outermost remaining ring has been dated, it is necessary to estimate the number of sapwood rings originally present. Methods doing this for oak are reviewed in the light of an intensive study of living trees at one site and an extensive study of 175 samples from living trees in North Wales and northwest England. Some methods reported in the literature are found to be invalid. A method reported by Hollstein (1965) is most reliable, with modifications for known variations in sapwood number with position in the tree. At present the best available estimate is that a value of 30 sapwood rings be used (95% confidence limits: 19–50).  相似文献   
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