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31.
32.
目前,学术界对于商业模式的定义和应包含的要素始终没有统一的认识。界定商业模式与企业战略之间的内在联系,研究商业模式设计的步骤和程序,以价值链分析方法为主线,拓展和延伸出在新的商业生态系统环境下更为适用的分析方法和商业模式设计建构的框架和路径,具有重要价值。 相似文献
33.
本文在文献综述和理论研究的基础上,运用多元回归建立模型,对上市公司自愿性披露信息影响因子进行了实证分析。结果发现,上市公司自愿性披露信息与盈利能力、发行股票类型、会计师事务所规模、公司规模和资产负债率等因素成显著正相关,而与股权集中度及行业类型没有显著相关关系,并对结论进行了相关分析。 相似文献
34.
股票市场收益率波动长记忆性的分解及实证研究 总被引:1,自引:0,他引:1
目前股票市场长记忆性检验和建模方法,不能很好地消除短期记忆的影响,针对这一问题,本文提出寻找序列的突变点,通过将序列分解为只包含长记忆性部分和不包含长记忆性部分的序列分解技术,来排除短期记忆的影响。对上证指数和深圳成分指数收益率波动的长记忆性进行实证研究发现,将序列分解以后进行长记忆性检验,不仅可以得出长记忆性检验更为精确的结论,同时可以检验序列分解过程的效果。 相似文献
35.
将DEA理论应用于广东21城市科技活动的分析中,建立评价城市科技活动效率的数据包络分析模型,谊模型评价了各城市的总体效率和技术效率的状况,进而对非DEA有效的城市提出达到DEA有效的可行措施,并分析了城市科技活动效率和资源配置之间的关系。 相似文献
36.
The Application of Mathematical Programming Approaches to Estimating Container Port Production Efficiency 总被引:1,自引:0,他引:1
Kevin?CullinaneEmail author Dong-Wook?Song Tengfei?Wang 《Journal of Productivity Analysis》2005,24(1):73-92
Container terminal production is both an important and complicated element in the contemporary global economy. This paper aims to evaluate the efficiency of the world’s most important container ports and terminals using the two alternative techniques of Data Envelopment Analysis (DEA) and the Free Disposal Hull (FDH) model. The results give an insight into the current efficiency ranking of the world’s major container ports and terminals. They also confirm expectations that the available mathematical programming methodologies lead to different results and that appropriate variable definition of input and output factors is a crucial element in meaningful applications of DEA and FDH. It is also concluded that the availability of panel data, rather than cross-sectional data would greatly improve the validity of the efficiency estimates derived from all the mathematical programming techniques applied.JEL Classification:C61, D24, E23, L23, L25, L92 相似文献
37.
近10年来长三角的政府公共投资(分配)过多地流向了上海、苏州、杭州、南京等核心城市,使这些城市的人均公共资本拥有量大幅上升,从而引发了其边际生产率递减情况的发生。但它们的资本利用效率或技术创新水平没有明显提升(或下降),不足以抵消其资本边际生产率下降的趋势。对这些大城市的经济发展来说,公共投资对其经济增长的意义已经在数量上表现得不明显,但对正处于经济快速增长期且资本边际生产率呈递增态势的长三角外缘中小城市而言,公共投资却有着积极意义。 相似文献
38.
运用系统范式分析现代国家竞争力的构成因素,应当包括企业行为,产业环境,要素禀赋,国家政治、经济、文化、人口、科技、习俗,国际环境等。这些在国家、产业、企业发展中的不同阶段中具有不同作用,国家和企业应据此采取相应的措施,作为形成和提升国家竞争力的基本途径。 相似文献
39.
Hans-Martin Krolzig Massimiliano Marcellino Grayham E. Mizon 《Empirical Economics》2002,27(2):233-254
There is a wide literature on the dynamic adjustment of employment and its relationship with the business cycle. In this
paper we present a statistical model that offers a congruent representation of part of the UK labour market since the mid
1960s. We use a cointegrated vector autoregressive Markov-switching model in which some parameters change according to the
phase of the business cycle. Output, employment, labour supply and real earnings are found to have a common cyclical component.
The long run dynamics are characterized by one cointegrating vector relating unemployment to trend-adjusted real wages and
output. Despite there having been many changes affecting this sector of the UK economy, the Markov-switching vector-equilibrium-correction
model with three regimes (representing recession, normal growth, and high growth) provides a good characterization of the
sample data, and performs well relative to alternative linear and non-linear models. The results of an impulse-response analysis
highlight the dangers of using VARs when the constancy of the estimated coefficients has not been established, and demonstrate
the advantages of generating regime dependent responses.
First Version Received: December 2000/Final Version Received: August 2001 相似文献
40.
By using Data Envelopment Analysis approach, we treat the health production system in a certain province as a Decision Making
Unit (DMU), identify its inputs and outputs, evaluate its technical efficiency in 1982, 1990 and 2000 respectively, and further
analyze the relationship between efficiency scores and social-environmental variables. This paper has found several interesting
findings. Firstly, provinces on frontier in different year are different, but provinces far from the frontier keep unchanged.
The average efficiency of health production has made a significant progress from 1982 to 2000. Secondly, all provinces in
China can be divided into six categories in terms of health production outcome and efficiency, and each category has specific
approach of improving health production efficiency. Thirdly, significant differences in health production efficiencies have
been found among the eastern, middle and western regions in China, and among the eastern and middle regions. At last, there
is significant positive relationship between population density and health production efficiency but negative relationship
(not very significant) between the proportions of public health expenditure in total expense and efficiency. Maybe it is the
result of inappropriate tendency of public expenditure. The relationship between abilities to pay for health care services
and efficiency in urban areas is opposite to that in rural areas. One possible reason is the totally different income and
public services treatments between rural and urban residents. Therefore, it is necessary to adjust health policies and service
provisions which are specifically designed to different population groups.
__________
Translated from Jingji Yanjiu 经济研究 (Economic Research Journal), 2006, (7): 92–105 相似文献