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81.
This paper presents a statistical analysis of time series regression models for longitudinal data with and without lagged dependent variables under a variety of assumptions about the initial conditions of the processes being analyzed. The analysis demonstrates how the asymptotic properties of estimators of longitudinal models are critically dependent on the manner in which samples become large: by expanding the number of observations per person, holding the number of people fixed, or by expanding the number of persons, holding the number of observations per person fixed. The paper demonstrates which parameters can and cannot be identified from data produced by different sampling plans. 相似文献
82.
This paper sheds light on the importance of trading behavior in the determination of asset prices by examining the interday serial correlations of intraday‐to‐intraday daily returns of the Taiwan Stock Exchange (TSEC). The TSEC exhibits positive serial correlation in the beginning and the end of the week and negative serial correlation in the middle of the week. The interday serial correlation is not a result of non‐synchronous trading, bid‐ask bounce in transaction price, or price limits. The serial correlation is positively related to trading volume and similar to the pattern in the US. We suggest that trading behavior seems to be an important determinant of asset prices. 相似文献
83.
We use the matched mother-child data from the 2000 wave of the US National Longitudinal Survey of Youth 79 (NLSY79) to assess the impact of full-time working mothers on children’s body mass index (BMI) and the likelihood of becoming overweight. Parametric, semi-parametric and non-parametric methods are employed to correct the bias of selection on observables and unobservables. Pros and cons of various methods are discussed and specification tests are conducted. In general, we find that a mother’s full-time employment does have some impact on her children’s BMI and likelihood of becoming overweight across models and inference procedures. 相似文献
84.
“Flow” has been established as a critical determinant of an online shopping experience. Online consumers with flow experience tend to be less price-sensitive and to have favorable attitudes and high re-patronage intention. As retail stores account for 90% of retail sales, it is important to advance our knowledge of flow theory in physical retail stores. However, the antecedents (navigational challenge, web skill) derived from the extant online flow literature are not applicable to in-store shopping. To fill the void, the two objectives here are (1) to provide a theoretical foundation to develop the antecedents (challenges and skills) associated with in-store shopping, and (2) to examine their impacts on consumer flow experience (concentration, control, and enjoyment) and subsequent future shopping intentions. The results will advance the literature of flow and offer helpful suggestions to retail marketing. 相似文献
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86.
Integrated reporting: background,measurement issues,approaches and an agenda for future research 下载免费PDF全文
We discuss the background to integrated reporting, a new reporting framework focused on firms’ future value creation narrative. We consider why integrated reporting is an area of interest for the accounting profession, accountants, investors, regulators and managers. We provide an overview of the integrated reporting literature, discuss measurement and research design issues to take into account when designing studies on integrated reporting and identify approaches and set an agenda for future research. 相似文献
87.
The service sector contributes more than 70 % to the GDP of many countries in which their services should continually be innovated to improve customer satisfaction. This study reviews the literature from 1995 to 2014 in the field of service innovation, service experience and engineering, and maturity model. Results show that the existing service innovation frameworks lack a focus on business process improvement, particularly for start-up firms. It causes the startups not ready enough to deal with inevitable challenges that may be encountered in the future. Accordingly, this study proposes a novel framework that combines the service experience engineering method and capability maturity model of integration for service to develop a new innovative service and improve service quality process for start-up firms. A practical case is implemented by applying the proposed framework. A service innovation prototype system is developed on the basis of the case study to deliver a mobile campus merchandise purchasing service. 相似文献
88.
Complaining is one option available to customers to express their dissatisfaction with inadequate services. Their complaints contain valuable information for service providers to improve customer relationships and operational quality, which can ultimately enhance business profitability. Customer complaints are frequently handled at the individual level, however, which addresses the symptoms rather than the causes of customer dissatisfaction. This paper presents a framework integrating a decision tree approach, a common data mining tool, into Six Sigma methodology to analyze customer complaints in aggregate and improve service quality by identifying and addressing the underlying causes of failed service. A case study of a restaurant chain was used to demonstrate the effectiveness of the proposed framework. The results indicated a significant (60%) decrease in the number of customer complaints received. Subsequent long-term benefits can be expected. 相似文献
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