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81.
Jacques H. Drèze 《Journal of econometrics》1977,6(3):329-354
Poly-t densities are defined by the property that their kernel is a product, or ratio of products, of Student-t kernels. These multivariate densities arise as Bayesian posterior densities for regression coefficients, under a surprising variety of specifications for the prior density and the data generating process. Although no analytical expression exists for the integrating constant and moments of these densities, these parameters are obtained through numerical integration in a number of dimensions given by the number of Student-t kernels in the numerator, minus one. The paper reviews how poly-t densities arise in regression analysis, and summarizes the results obtained for a number of models. 相似文献
82.
Mauro Cerè 《Decisions in Economics and Finance》1982,5(2):151-158
Viene considerato il problema della determinazione della «politica ottima» di un'impresa che deve ammortizzare un prestito diviso in obbligazioni, noti i tassi di interesse del prestito, la redditività del capitale disponibile e prefissati vincoli sul numero massimo di obbligazioni da rimborsare nei singoli anni. Il problema viene risolto coi metodi della programmazione lineare. 相似文献
83.
Journal of Economics - 相似文献
84.
The paper gives sufficient conditions for the existence of an equilibrium with price rigidities and quantity rationing where: (i) demand is never rationed; (ii) net trades of an a priori chosen numeraire are never rationed; and (iii) supply is rationed only when relative prices are downward rigid. 相似文献
85.
Two methods of aggregating Luenberger productivity indicators across firms are considered. One method makes use of some rather implausible allocative efficiency assumptions. The second method, a superlative index number approach, relies on more palatable assumptions and is judged to be the more promising of the two methods. 相似文献
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Ethics in accounting and ethical education have seen an increase in interest in the last decade. However, despite the renewed interest some important shortcomings persist. Generally, rules, principles, values and virtues are presented in a fragmented fashion. In addition, only a few authors consider the role of the accountants character in presenting relevant and truthful information in financial reporting and the importance of practical reasoning in accounting. This article holds that rules, values and virtues are interconnected. This provides a sound approach to ethics in accounting, in which character and practical reasoning are crucial. Consequently, ethical education in accounting has to simultaneously include the knowledge of proper rules and principles and their correct application; values (understood as moral goods) and virtues, whose acquisition, in the view of the author, should be encouraged. 相似文献
90.
This article investigates the effects of human capital and technological capital on innovation. While the role of technological capital as measured by research and development (R&D) expenditure has been intensively investigated, few studies have been made on the effect of employee training on innovation. This article explores the relationship between innovation and firm employee training. Our methodological approach contributes to the literature in three ways. We propose various indicators of firm employee training. We build a count data panel with a long time-data series to deal with the issue of firms?? heterogeneity. We propose a dynamic analysis. Using dynamic count data models on French industrial firms over the period 1986?C1992, we find positive and significant effects of R&D intensity and training on patenting activity. Whatever the indicators of training our results show that the firm employee training has a positive impact on technological innovation. 相似文献