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ABSTRACT. This paper is concerned with the impacts of academic knowledge production (human capital, research, and consultancy) on the investment behavior of the manufacturing industry. Beginning with the neoclassical theory of capital accumulation, a multiregional investment model for non-residential structures and equipment is developed. Within this model, the knowledge impacts of universities are represented by a diffusion function, which takes into account the possibilities of contagious and hierarchical diffusion of knowledge. Special attention has been given to the development of a theoretically sound and empirically operational investment model, and to the identification of spatio-temporal correlation. The latter has been approached by means of the use of an EGLS estimator, based on a stationary spatio-temporal Markov scheme for the residual. The main result of the case study relating to the Netherlands is that academic knowledge production has a significant positive impact on investments in equipment which is strongest in the neighborhood of central places (i.e., following a hierarchical diffusion pattern). 相似文献
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C. A. Raymond J. J. Bevitt Y. Tristant R. K. Power A. W. Lanati C. J. Davey J. S. Magnussen S. M. Clark 《Archaeometry》2019,61(5):1160-1174
This case study was the first of its kind, where neutron computed tomography (CT) was applied to a wrapped mummified animal. Conventional X‐ray CT was also used to allow for meaningful comparison, and complementary data for a comprehensive investigation. Previous applications of both techniques are limited to metallic objects, such as bronze Buddhas. The mummy used in this study (IA.2402) is dated between the Third Intermediate Period (1069–664 bce ) to Late Period (664–332 bce ) according to the wrapping style, and was originally believed to contain a complete skeleton of a feline. However, precise date and provenance were unknown. Our results prove the presence of only partial juvenile feline remains, and provide a date range for artefact creation (900–804 bce ± 30) and alteration (367–204 bce ± 30). Therefore, this study implements an established imaging technique (neutron CT) in a novel way, while preserving and conserving the intrinsic value of the artefact through non‐destructive investigation. 相似文献
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