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121.
    
Mineral production is the mainstay of the global economy. Pakistan has huge mineral resources potential, but the contribution of minerals to the gross domestic product is not commensurate with its potential. The main reasons for the unregulated nature of the mining sector are poor organizational structure, inadequate implementation of legislation, insufficient investment, and lack of technology. Due concerns and priority of introducing advanced and safe mining methods are still awaited in Pakistan. Therefore, the role of policy makers at this stage is crucial for assessing and reviewing the current strategies for developing future strategies in order to overcome these problems. This article reviews the current situation of the mining industry in standards of statutory compliance, highlights the key issues in health and safety practices, and analyses loopholes in policies. In addition, some future implications are also put forward for the steady development of the mining sector in Pakistan. This study will help the government and mining enterprises from different perspectives in order to ensure mine safety and steady development. © 2019 American Institute of Chemical Engineers Process Saf Prog: e12041 2019  相似文献   
122.
    
In this article, the authors have analyzed the merger‐and‐acquisition (M&A) activities in Mainland China, Hong Kong, and Taiwan from 2000 to 2010. M&A activities in Greater China expanded steadily from 2005 to 2010. However, most of the increases occurred in Mainland China and Hong Kong. Taiwan's M&A activities from 2006 to 2010 have remained sluggish. The authors do expect M&A to continue to expand in China. However, the Chinese government has issued some important new regulations that foreign investors should understand‐and the authors briefly discuss those new regulations as well. © 2012 Wiley Periodicals, Inc.  相似文献   
123.
The long-term value proposition of transportation infrastructure investments can be significantly distorted if the short-term effects of spatial externalities on land use patterns, economic expansions, and migration patterns are not properly included in the analysis. Some of these effects occur over a short period of time and soon after the investment materializes, whereas others take longer and follow more steady patterns. In this article, we develop a novel dynamical model of a primal society with constructs that are specifically geared toward transportation infrastructure expansions and investments. The model quantifies the impact of these expansions on some key performance indicators and on the overall utility and production capacity of the society. We argue that traditional analytical models that work on the premises of stationary behavior and a static response of society to changes in infrastructure do not correctly capture these effects. The land use patterns and spatial expansion computed from the model are validated against existing theory on land use. Preliminary results on how to use the model for value proposition analysis are also presented using simple case studies.  相似文献   
124.
    
Demography theory suggests that high gender diversity leads to high turnover. As turnover is costly, we tested the following: a main effect prediction derived from demography theory, and a moderating effect prediction derived from the relational framework. Data on 198 publicly listed organisations were collected through a human resources decision‐maker survey and archival databases. The results indicate that higher gender diversity leads to lower turnover in organisations with many gender‐focused policies and practices. Findings suggest that organisations can lower their turnover rates by increasing their gender diversity and by implementing gender‐focused policies and practices.  相似文献   
125.
Utama and Cready [Utama, S., Cready, W.M., 1997. Institutional ownership, differential predisclosure precision and trading volume at announcement dates. Journal of Accounting and Economics 24, 129–150] use total institutional ownership to proxy for the proportion of better-informed traders, an important determinant of trading around earnings announcements. We argue that institutions holding small stakes cannot justify the fixed cost of developing private predisclosure information. Also, institutions with large stakes generally do not trade around earnings announcements since they are dedicated investors or face regulations that make informed trading difficult. However, institutions holding medium stakes have incentives to develop private predisclosure information and trade on it; we show that their ownership is a finer proxy for the proportion of better-informed traders at earnings announcements.  相似文献   
126.
    
This study examines whether auditors are employed as a monitoring mechanism to mitigate agency problems arising from different types of controlling shareholders. In a context of concentrated ownership and poor investor protection, controlling shareholders can easily expropriate wealth from minority shareholders and profit from private benefits of control. However, this agency conflict has been rarely studied, as the most commonly assumed agency conflict occurs between managers and shareholders. Using an audit fee model derived from Simunic (1980), we study the impact of the nature of controlling shareholders on audit fees in French listed firms. Our results show: (1) a negative relationship between audit fees and government shareholdings; (2) a positive relationship between audit fees and institutional shareholdings; and (3) no relationship between audit fees and family shareholdings. These results illustrate the mixed effects of the nature of ownership on audit fees.  相似文献   
127.
    
This study first investigates emission reduction targeting among polluting firms in the basic materials sector. We assess whether firms that produce a greater amount of carbon emissions are more likely to set emission reduction targets in the basic materials sector. Further, we test whether female directors are influential in moderating between emission reduction targeting and carbon emissions. The sample covers publicly traded firms in the basic materials sector listed in the Thomson Reuters Eikon database between 2010 and 2021. We perform country and year fixed effects regression analysis, as the firms in the sample are from diverse countries. We find that firms that produce more carbon emissions are more likely to set emission reduction targets and that female directors negatively moderate the relationship between emission reduction targeting and carbon emissions. Thus, firms with more female directors on their boards are more likely to reduce their carbon emissions via emission reduction targeting.  相似文献   
128.
    
This paper investigates the empirical relevance of structural breaks in forecasting stock return volatility using both in-sample and out-of-sample tests applied to daily returns of the Johannesburg Stock Exchange (JSE) All Share Index from 07/02/1995 to 08/25/2010. We find evidence of structural breaks in the unconditional variance of the stock returns series over the period, with high levels of persistence and variability in the parameter estimates of the GARCH(1,1) model across the sub-samples defined by the structural breaks. This indicates that structural breaks are empirically relevant to stock return volatility in South Africa. However, based on the out-of-sample forecasting exercise, we find that even though there structural breaks in the volatility, there are no statistical gains from using competing models that explicitly accounts for structural breaks, relative to a GARCH(1,1) model with expanding window. This could be because of the fact that the two identified structural breaks occurred in our out-of-sample, and recursive estimation of the GARCH(1,1) model is perhaps sufficient to account for the effect of the breaks on the parameter estimates. Finally, we highlight that, given the point of the breaks, perhaps what seems more important in South Africa, is accounting for leverage effects, especially in terms of long-horizon forecasting of stock return volatility.  相似文献   
129.
The competitive environment in long-distance telecommunications markets changed considerably with the divestiture of AT&T in 1982. A variety of providers appeared, offering myriad services. In this environment, customer selection of preferred long-distance carrier became more complicated and more important.In this paper, we analyze and quantify the determinants of this choice. To our knowledge, this focus is distinct. By contrast, the literature to date has analyzed the behavioral determinants of calling volume (local and long-distance) and the selection of local service options.In our analysis, we allow the alternative carriers to differ in terms of tariffs, reputation, quality, access, and specialized customer services. We quantify the interactive effects of these carrier attributes and customer demographics upon the selection of carrier. Price and income elasticities are estimated. A distinguishing feature of our analysis is that it examines behavioral differences among households in equal-access and unequal-access areas. We find that households assured of the convenience of 1 + dialling for their chosen carrier in equal-access areas display more rational and sophisticated decision making. On the other hand, households in unequal-access areas display greater status quo effects in their decision making.  相似文献   
130.
This paper investigates the effects of portfolio flows on the US dollar–Japanese yen exchange rate changes over the period 1988:01–2011:04. Using a time-varying transition probability Markov-switching framework, the results suggest that the impact of portfolio flows on the dollar–yen exchange rate changes is state-dependent. In particular, the results show that portfolio inflows from Japan toward the US, more than monetary variables, strengthen the probability of remaining in the dollar–yen appreciation (low volatility) state. Therefore, credit controls on the flows can be used as a policy tool to pursue economic and financial stability.  相似文献   
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