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排序方式: 共有192条查询结果,搜索用时 93 毫秒
81.
This article investigates the asymmetric and long memory volatility properties and dynamic conditional correlations (DCCs) between Brazilian, Russian, Indian, Chinese, and South African (BRICS) stock markets and commodity (gold and oil) futures markets, using the trivariate DCC-fractionally integrated asymmetric power autoregressive conditional heteroskedasticity (FIAPARCH) model. We identify significant asymmetric and long memory volatility properties and DCCs for pairs of BRICS stock and commodity markets, and variability in DCCs and Markov Switching regimes during economic and financial crises. Finally, we analyze optimal portfolio weights and time-varying hedge ratios, demonstrating the importance of overweighting optimal portfolios between BRICS stock and commodity assets. 相似文献
82.
Jang Hoon Choi 《Global Economic Review》2016,45(4):380-404
The trends of ageing population and slow economic growth have become a major concern for public pension schemes with the defined benefit (DB) type. To mitigate the impact of this trend and secure long-term financial sustainability, several countries have recently adopted notional defined contribution (NDC) schemes. In this paper, we show how to apply an NDC scheme to the public pension system of Korea, arguably the fastest ageing country. In particular, we create a new pension system by combining the current Korean pension scheme and an NDC. Through simulations it is shown that the proposed scheme can reduce the financial instability caused by the changes in demographic and economic factors, while retaining the income redistribution component. We further consider applying a German-type automatic balancing mechanism to the proposed scheme, by using the average income to determine the return rate of the fund, to make it sustainable in the long term. 相似文献
83.
84.
85.
Hian Teck Hoon 《Australian economic papers》1998,37(3):257-272
A model is developed, which captures the interactions of unemployment and economic growth in general equilibrium. The economy evolves along a correct-expectations equilibrium path exhibiting endogenous job rationing, and productivity growth is driven by installation of new capital. Under the maintained hypothesis that the elasticity of substitution between capital and labour is less than unity, unemployment benefits are shown to shift up the whole path of equilibrium unemployment, leaving the economy with a higher natural rate of unemployment and lowering the long-run growth rate permanently. Investment tax credits financed by lump sum taxes on total income are capable of lowering the natural rate and raising the economy's growth rate. 相似文献
86.
Understanding consumers' upgrading behavior is essential to product planning. Product managers would like to know what fraction of customers would upgrade to new and improved versions, and how fast. This paper presents a method to forecast the sales path of an improved version of a high‐technology product defined in terms of its price path and multiattribute product specification. The approach is potentially useful to managers to answer what‐if questions on the effects of alternative price paths and product specifications of the upgrade on when and what fraction of customers will upgrade. By doing such analysis for several product options under consideration, managers can choose the best feature specification and price path for the upgrade. The proposed approach integrates an individual‐level conjoint utility model with a hazard function specification. The first stage of estimation (i.e., conjoint analysis) measures individual‐level multiattribute utility functions, and the second stage (i.e., duration analysis) calibrates the coefficients of predictor variables of the time to upgrade via maximum likelihood. An illustrative application in the personal digital assistant (PDA) category confirms the predictive validity and potential usefulness of the proposed approach. Among the empirical findings are that higher upgrade costs and expectation of faster product improvement tend to delay buyers' upgrading decisions. The roles of other predictor variables such as product category characteristics, consumer characteristics, and peer pressure were also confirmed. 相似文献
87.
This study investigates the effects of cultural conditioning, product type, and benefit claim type on attitudes and brand personality perceptions among consumers from a society that is more culturally conditioned towards utilitarian consumption (Shanghai, China) and an economy that is less culturally conditioned towards utilitarian consumption (Singapore). Our findings reveal that consumers in Shanghai preferred ads promoting utilitarian rather than hedonic products. They also rated brands of utilitarian products as more sophisticated, competent, exciting, and sincere than hedonic products. No such difference was observed among Singaporeans. These consumers preferred hedonic over utilitarian products but did not perceive them as being different from utilitarian products in terms of brand personality. Theoretical and managerial implications are forwarded, together with directions for future research. 相似文献
88.
Sang Hoon Kang 《Applied economics letters》2019,26(1):74-78
This study investigates the dynamic connectedness across nine economic policy uncertainty indexes. Our results indicate that the total spillover index is on average 67.4%, indicating a high level of interconnectedness across the nine indexes. In particular, the EU is the largest transmitter of uncertainty connectedness. In addition, China becomes a net transmitter of connectedness during the global financial crisis and European debt crisis. This finding indicates that the uncertainty of Chinese economic policy is an important contributor to the connectedness of the uncertainty network. 相似文献
89.
Ji Hoon Song 《International Journal of Training and Development》2008,12(4):265-281
This research aims to identify the influence of learning organization culture on the practices of organizational knowledge‐creation. Actionable knowledge‐creation practices are put forward as a variable in preference to the learning process itself because they may be more closely related to the achievement of individual and/or organizational performance improvement. Learning organization culture is defined in terms of the seven dimensions of the learning organization established by Watkins and Marsick and their questionnaire based on these dimensions is adapted for the present study. In order to measure knowledge‐creation practices, the knowledge conversion theory of Nonaka and Takeuchi was applied. Confirmatory factor analysis and measurement of internal consistency analyses were used to examine the psychometric properties of the instruments. Multivariate analyses were utilized for measuring the influential relations between variables. The results indicate that the proposed structural model is a valid concept in the Korean context for the purposes of the present research. Learning organization culture shows a strong and positive impact on organizational knowledge‐creation practices. Conclusions and implications are discussed. 相似文献
90.
This paper applies a stochastic frontier production model to the data from Penn World Table's 49 countries over the period 1965 to 1990, to decompose total factor productivity growth into technical change and technical efficiency change. Empirical results show East Asian countries led the world in productivity growth, mainly because their technical efficiency gain was so much faster than that of other countries. East Asian countries also registered rapid technical change, which was comparable to that of the G6 countries after the late 1980s. The results provide evidence that negate the hypothesis that East Asian growth was mostly input-driven and unsustainable. 相似文献