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101.
About 65 percent of total income inequality in the non-communist world is accounted for by international inequality, and about 35 percent by inequality within nations. More than 70 percent of international inequality is accounted for by the inequality of two major regions. 相似文献
102.
The maximum entropy (ME) criterion is used to justify three different specifications of distributed lags. For lag distributions in several dimensions, the ME criterion yields a considerable simplification. 相似文献
103.
Optimal Product Variety and Economic Growth: The Trade-off between Internal and External Economies of Scale 总被引:1,自引:0,他引:1
Received July 17, 2000; revised version received February 1, 2001 相似文献
104.
105.
Despite various corporate collapses over the last decades, risk management is increasingly influential across organizations worldwide, as if the apparatus’ credibility was impermeable to scandals that, from critical angles, cast doubt on its efficacy. Relying on a cultural perspective of analysis highlighting the range of social processes that protect prevailing institutions’ legitimacy from aberrations, we examined the sense-making approaches employed by corporate boardroom actors to maintain their confidence in the credibility of the risk management apparatus despite being exposed to a continuous flow of corporate failures pointing to risk management efficacy limitations. Specifically, we conducted 35 interviews with corporate board stakeholders, mostly board members and corporate consultants. Our analysis indicates that actors involved in risk management processes tend to interpret aberration cases through perspectives that put the blame on some implementation deficiency, thereby ensuring that risk management's core assumptions are not questioned. These perspectives point to a defensive system of thought grounded in the director and consultancy communities, whose main referents are subject to intense work and re-conceptualization in the aftermath of aberrations, thereby providing community members with the means to make sense of the frictions of organizational life in ways that maintain the legitimacy of the risk management apparatus. 相似文献
106.
Jan Průša 《Journal of Industry, Competition and Trade》2010,10(3-4):343-363
This paper analyzes microeconomic production functions of Czech small and medium enterprises. We use the data from 2002 to 2005 of thirty manufacturing industries (agriculture and services are not included), each divided into five subgroups according to the number of employees. We employ stochastic frontier analysis (SFA) to make statistical inference on the production process. Our results demonstrate that Czech SME depend in their functioning more on labour than on capital. The impact of tangible or intangible assets such as software or patents is negligible, while the effect of investment is negative. SFA strongly supports the presence of a systematic gap between common practice and best practice: the majority of firms significantly differ from top performers. Finally a simple test for time effect shows that between 2003 and 2005 Czech SME moved towards higher efficiency. 相似文献
107.
The analysis of large research production, such as universities, towns, cities or even countries, can be performed in several ways. These various approaches can range from the experts′ feeling to a more precise analysis of co-authors′ productivity. The various results obtained introduce the concept of ‘virtual research universes’ where the global perception of the production hides the sharp reality of objectives and subjects. The ability to apply the various methodologies and tools to make such analysis can reduce misunderstanding and misleading positions, especially in funding, planning and project evaluation. This paper takes as an example the production of physics laboratories in Marseille (from the INSPEC databae), and shows how the various levels of analysis can move from virtual to real research universes, thus helping the experts in their decision process. 相似文献
108.
Natural catastrophes attract regularly the media attention and have become a source of public concern. From a financial viewpoint, they represent idiosyncratic risks, diversifiable at the world level. But for various reasons, reinsurance markets are unable to cope with this risk completely. Insurance-linked securities, such as catastrophe (cat) bonds, have been issued to complete the international risk transfer process, but their development is disappointing so far. This article argues that downside risk aversion and ambiguity aversion explain their limited success. Hybrid cat bonds, combining the transfer of cat risk with protection against a stock market crash, are proposed to complete the market. The article shows that replacing simple cat bonds with hybrid cat bonds would lead to an increase in market volume. 相似文献
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110.
J. Doyne Farmer Austin Gerig Fabrizio Lillo Henri Waelbroeck 《Quantitative Finance》2013,13(11):1743-1758
We develop a theory for the market impact of large trading orders, which we call metaorders because they are typically split into small pieces and executed incrementally. Market impact is empirically observed to be a concave function of metaorder size, i.e. the impact per share of large metaorders is smaller than that of small metaorders. We formulate a stylized model of an algorithmic execution service and derive a fair pricing condition, which says that the average transaction price of the metaorder is equal to the price after trading is completed. We show that at equilibrium the distribution of trading volume adjusts to reflect information, and dictates the shape of the impact function. The resulting theory makes empirically testable predictions for the functional form of both the temporary and permanent components of market impact. Based on the commonly observed asymptotic distribution for the volume of large trades, it says that market impact should increase asymptotically roughly as the square root of metaorder size, with average permanent impact relaxing to about two-thirds of peak impact. 相似文献