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排序方式: 共有103条查询结果,搜索用时 125 毫秒
71.
Dubé Jean-PIerre Chintagunta Pradeep Petrin Amil Bronnenberg Bart Goettler Ron Seetharaman P. B. Sudhir K. Thomadsen Raphael Zhao Ying 《Marketing Letters》2002,13(3):207-220
A growing body of empirical literature uses structurally-derived economic models to study the nature of competition and to measure explicitly the economic impact of strategic policies. While several approaches have been proposed, the discrete choice demand system has experienced wide usage. The heterogeneous, or mixed, logit in particular has been widely applied due to its parsimonious structure and its ability to capture flexibly substitution patterns for a large number of differentiated products.We outline the derivation of the heterogeneous logit demand system. We then present a number of applications of such models to various data sources. Finally, we conclude with a discussion of directions for future research in this area. 相似文献
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Certain results are communicated regarding effects of parameter changes, when the stationary state is stable, on the stationary state and an optimal paths in its neighbourhood in discrete time multi-sectoral optimal growth models where period utilities are discounted. 相似文献
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Using a new database covering some 91 supervisory agencies, this paper examines how important various skilled experts are in the supervisory process and the relative usage of different kinds of such experts. We seek to explore what kind of perspective supervisors in different institutional settings may adopt: a macro-oriented perspective or a more micro-approach? The answer to this question is relevant, as there is evidence that many financial crises have been macro-induced.It is found that central banks employ more economists and fewer lawyers in their supervisory/financial stability wing than non-centralbank supervisory agencies. This result would indicate that an institutional setting with direct or indirect central bank involvement is more likely to produce a macro-approach. Next, there are significant economies of scale in financial supervision, though this can be measured by several alternative variables (e.g., the relative scale of bank intermediation). Finally, there do not appear to be major economies of scope. A more complex financial system with a well-developed stock market would need both more supervisors as well as more skilled ones. 相似文献
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The economics of poverty in poor countries 总被引:1,自引:0,他引:1
Dasgupta P 《The Scandinavian journal of economics》1998,100(1):41-68
This paper examines the links that have recently been studied between poverty, high fertility and undernourishment, on the one hand, and degradation of the local environmental-resource base and civic disconnection, on the other, in poor countries. An account is offered of a number of pathways involving positive feedbacks that create poverty traps, in which certain identifiable groups of people in an economy can get caught even when the economy in the aggregate experiences economic growth. The relevant policy implications are noted. 相似文献