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341.
We provide a comprehensive empirical analysis of the links between international services outsourcing, domestic outsourcing, profits, and innovation using plant‐level data. We find a positive effect of international outsourcing of services on innovative activity at the plant level. Such a positive effect can also be observed for domestic outsourcing, but the magnitude is smaller. We also find that international services outsourcing has a positive effect on profitability, as predicted by theory, whereas this is not true for domestic sourcing. The results are robust to various specifications and an instrumental variables analysis. (JEL F19, O31) 相似文献
342.
Hasan Bülbül Nuri Ömürbek Turan Paksoy Tolga Bektaş 《Journal of Engineering and Technology Management》2013,30(2):136-156
Advanced manufacturing technology (AMT) investment patterns in developing countries is in need of further investigation, particularly in the light of the conflicting evidence from the literature. This paper provides new evidence on AMT investment patterns from the Turkish automotive industry and develops a taxonomy by exploring the relationships between AMT investment patterns, ownership structure, firm size and performance. Analysis of industry survey data suggests the existence of three groups with different AMT investment strategies. Results suggest that AMT investment patterns are not only significantly correlated with firm performance or ownership, but also reveals significant differences in manufacturing performance across investment patterns. 相似文献
343.
344.
Martha Sif Karrebæk 《Journal of Sociolinguistics》2013,17(3):355-375
It is of general interest to the study of language in society how ideologies motivating linguistic hegemony get formulated in the context of increasing diversity. This includes if and how linguistic diversity surfaces under conditions that are clearly disfavouring it, and why or why not it happens. Also, we need to know how ideologies of language surface at the micro‐level, and how they are continuously passed on, shared, negotiated or contested. These are central issues in this study of socialization into a condition and an ideology of linguistic hegemony in Copenhagen, Denmark. It is illustrated how school‐authorities, parents and children co‐create Danish dominance and a linguistic ideology of monolingualism during the first school year. The primary focus is on two school‐beginners with minority language background in a linguistically diverse classroom, and the linguistic registers of particular interest are Danish, the majority language, and Turkish, an immigrant language. The article builds on field‐notes, ethnographic interviews, video‐ and audio‐recordings. Linguistic Ethnography and Language Socialization constitute the methodological frameworks, and Silverstein's ‘total linguistic fact’ forms an analytic principle. 相似文献
345.
DANKMAR BÖHNING 《Scandinavian Journal of Statistics》2010,37(2):221-236
Abstract. Two simple and frequently used capture–recapture estimates of the population size are compared: Chao's lower‐bound estimate and Zelterman's estimate allowing for contaminated distributions. In the Poisson case it is shown that if there are only counts of ones and twos, the estimator of Zelterman is always bounded above by Chao's estimator. If counts larger than two exist, the estimator of Zelterman is becoming larger than that of Chao's, if only the ratio of the frequencies of counts of twos and ones is small enough. A similar analysis is provided for the binomial case. For a two‐component mixture of Poisson distributions the asymptotic bias of both estimators is derived and it is shown that the Zelterman estimator can experience large overestimation bias. A modified Zelterman estimator is suggested and also the bias‐corrected version of Chao's estimator is considered. All four estimators are compared in a simulation study. 相似文献
346.
Chironomid assemblages of 22 artificial water bodies, mainly fountains, in two South American cities were surveyed. We found
surprisingly low diversities, with a total of 11 taxa, averaging two taxa per site. The typical fountain assemblages mainly
consisted of common species that have a wide distribution pattern and are tolerant to organic pollution. Also taxa independent
of the natural aquatic sources, such as tap-water and semi-terrestrial species were represented. There was no significant
difference between the taxa richness of the two S. American regions, however, the assemblage structures of the water bodies
of Quito and Bogotá differed significantly. There was no correlation between sample similarities and distances among the sites
either. The low number of taxa recorded can be attributed to the combination of naturally limited species pool and the heavy
pollution in natural water bodies as colonization sources. 相似文献
347.
Halûk Özkaynak Jianping Xue Valerie G. Zartarian Graham Glen Luther Smith 《Risk analysis》2011,31(4):592-608
Daily soil/dust ingestion rates typically used in exposure and risk assessments are based on tracer element studies, which have a number of limitations and do not separate contributions from soil and dust. This article presents an alternate approach of modeling soil and dust ingestion via hand and object mouthing of children, using EPA's SHEDS model. Results for children 3 to <6 years old show that mean and 95th percentile total ingestion of soil and dust values are 68 and 224 mg/day, respectively; mean from soil ingestion, hand‐to‐mouth dust ingestion, and object‐to‐mouth dust ingestion are 41 mg/day, 20 mg/day, and 7 mg/day, respectively. In general, hand‐to‐mouth soil ingestion was the most important pathway, followed by hand‐to‐mouth dust ingestion, then object‐to‐mouth dust ingestion. The variability results are most sensitive to inputs on surface loadings, soil‐skin adherence, hand mouthing frequency, and hand washing frequency. The predicted total soil and dust ingestion fits a lognormal distribution with geometric mean = 35.7 and geometric standard deviation = 3.3. There are two uncertainty distributions, one below the 20th percentile and the other above. Modeled uncertainties ranged within a factor of 3–30. Mean modeled estimates for soil and dust ingestion are consistent with past information but lower than the central values recommended in the 2008 EPA Child‐Specific Exposure Factors Handbook. This new modeling approach, which predicts soil and dust ingestion by pathway, source type, population group, geographic location, and other factors, offers a better characterization of exposures relevant to health risk assessments as compared to using a single value. 相似文献
348.
Dipl.-?k. Duc Hung Tran 《Zeitschrift für Betriebswirtschaft》2011,81(5):551-585
The present paper provides an overview of research concerning the relationship between corporate governance and the cost of equity capital. The purpose is to explore whether and to what extent corporate governance attributes manifest in firms?? cost of capital. Since the separation of ownership and control is seen as the starting point for the academic thinking on this issue, the term of corporate governance from a shareholder perspective is discussed in more detail. Apart from this terminological discussion the emphasis of this paper lies on the critical review of theoretical and empirical literature. In conducting this review, empirical concepts measuring the relevant dimensions and their potential limitations are explained. Based on these limitations I suggest opportunities for expanding research on the relationship between corporate governance and cost of equity capital, thereby showing future research directions. 相似文献
349.
Karin Ingvarsdotter Sara Johnsdotter Margareta Östman 《European Journal of Social Work》2012,15(3):345-360
According to a 2005 survey, the people of Rosengård, a culturally heterogeneous borough of Malmö, Sweden, utilise considerably less mental health services in relation to their estimated needs than the rest of the city's population. A study based on interviews with people living or working in the area revealed several possible reasons. Most important was their perception of what constitutes mental illness. If the cause of one's disturbed mental state is viewed as a normal life crises rather than an illness, one does not seek medical treatment. The aim of this article is to illustrate how under-utilisation of mental health services by an immigrant population can be explained by their different perceptions of what constitutes mental illness. Interventions should add concerns regarding a client's socio-economic and psychosocial needs, rather than solely follow a medical model. 相似文献
350.
Özgür Kıbrıs 《Theory and Decision》2012,72(4):509-523
We interpret solution rules on a class of simple allocation problems as data on the choices of a policy maker. We analyze
conditions under which the policy maker’s choices are (i) rational (ii) transitive-rational, and (iii) representable; that is, they coincide with maximization of a (i) binary relation, (ii) transitive binary relation, and (iii) numerical
function on the allocation space. Our main results are as follows: (i) a well-known property, contraction independence (a.k.a. IIA) is equivalent to rationality; (ii) every contraction independent and other-c monotonic rule is transitive-rational; and (iii) every contraction independent and other-c monotonic rule, if additionally continuous, can be represented by a numerical function. 相似文献