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101.
多元化还是专业化,这是企业发展过程中常遇到的问题,也是企业最困惑的问题之一。一般地,当宏观经济处于增长期,则行业发展趋好,行业竞争较弱,此时多元化经营比较容易成功;当宏观经济处于成熟期和衰退期,则行业发展趋势变坏,行业竞争加剧,多元化经营则难以成功。经济转型将使传统行业的发展趋势受到不利影响,从而加大多元化经营的风险。  相似文献   
102.
Abstract

This paper investigates the identity work of science-based entrepreneurs in two very different country contexts: Finland and Russia. Building on the literature investigating role identities, we first analyse the identification of individuals with the roles of a scientist and an entrepreneur; and second, how individuals manage the boundary between these two roles. Methodologically, we take a narrative approach, which regards life stories as identity constructions. Our empirical data consist of 23 biographical interviews with science-based entrepreneurs that are inductively analysed. Our findings show that the Russian informants considered being a scientist a salient part of their self-identification, distanced themselves from the role of an entrepreneur, and set discursive boundaries to segment the two roles. For the Finnish informants, identification with the professional roles as a scientist or as an entrepreneur was less salient for the personal identity as they make a clear distinction between ‘what one does’ and ‘who one is’. They also view the two roles as integrated rather than segmented, and have no significant need to justify the border-crossing between them. Our contribution is in demonstrating how science-based entrepreneurs’ identity work is influenced by importance and meanings attached to different work roles, and how these are contextualised.  相似文献   
103.
转弯型堆垛机是自动化立体仓库中实现货物自动存取的关键设备,文中对转弯型堆垛机效率问题进行研究。在假定等概率拣取货物的条件下,分别推求转弯型堆垛机的平均单一作业和复合作业循环周期和作业效率的计算公式,并利用华南理工大学仓储综合实验室的基本数据进行了作业效率的实证计算,从而为自动化立体仓库系统的建设设计和有效管理提供依据。  相似文献   
104.
By mid-2008 the world was witnessing the unfolding of a relatively rare macroeconomic phenomenon, namely, the onset of what one might call a synchronized international – or ‘world’ – recession. But what exactly is a ‘synchronized world recession’? This article proposes a practical definition of a ‘synchronized world recession’ and a putative set of historical post-WWII dates for a ‘world business cycle chronology’. Further, using a constructed ‘world coincident index of economic indicators’ and an associated ‘world leading index of economic indicators’, this article demonstrates that evidence was available from early in the second half of 2007 that the world was indeed sliding inexorably towards its fourth synchronized world recession since WWII (although, interestingly, already its second of the twenty-first century!).  相似文献   
105.
A. Hackethal  O. Vins 《Applied economics》2013,45(33):4275-4290
The ‘Quiet Life Hypothesis (QLH)’ posits that banks with market power have less incentives to maximize revenues and minimize cost. Especially government owned banks with a public mandate precluding profit maximization might succumb to a quiet life. We use a unified approach that simultaneously measures market power and efficiency to test the quiet life hypothesis of German savings banks. We find that average local market power declined between 1996 and 2006. Cost and profit efficiency remained constant. Nonparametric correlations are consistent with a quiet life regarding cost efficiency but not regarding profit efficiency. The quiet life on the cost side is negatively correlated with bank size, quality of loan portfolio and local per capita income. The last result indicates that the quiet cost life is therefore potentially due to benevolent excess consumption of local input factors by public savings banks.  相似文献   
106.
107.
In 1926 and 1936 Sraff and Keynes attacked the methodological core of traditional economic theory by showing that the premises of partial equilibrium analysis were mutually inconsistent.

this paper aims to show that Harrod neglected Sraffa and Keynes's logical arguments, and only admitted that the tacit assumptions under discussion restricted the domain of validityof the theory to special cases: perfect competition and statics. He then proceeded to generalize the theory to imperfect competition and dynamics by applying the principles (but not the instruments) of traditional analysis. The definition of these domains thus aimede at rescuing as mush as possible from the orthodox approach.  相似文献   
108.
This paper analyses the fundamental forces involved in the evolution of the telecommunications industry. It is suggested that there are five major forces that together drive the evolution of this industry: specialisation, competition, financial markets. endogenous consumer demand and permeable industry boundaries. An important research task is to further elaborate on the boundaries of not only the industry but of the industrial system taken as a whole.  相似文献   
109.
This article defines a measure of the quality of life in the regional capitals of Poland and compares the results. This taxonomic measure is based on a set of diagnostic traits, including housing conditions, state of the natural environment, labor market, personal safety, and range of cultural services available. For this purpose, a set of variables from 2011 was observed for each regional capital. This research is important in defining the difference between our target cities from the standpoint of social development. It also allows us to classify the cities into groups based on the quality of life of their inhabitants.  相似文献   
110.
We characterize the cyclical properties of fiscal policy in China along two related dimensions. First, we estimate the sign and size of the fiscal policy multiplier. Second, we assess whether fiscal policy is conducted pro‐ or counter‐cyclically. To account for the challenges posed by China's vast geography, we use data at the provincial level. We find that (i) fiscal policy generally has ‘Keynesian’ effects, and (ii) fiscal policy is mostly conducted pro‐cyclically. This means that fiscal policy is more an element of destabilization than a tool for stabilization.  相似文献   
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