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41.
    
This paper studies the exchange rate dynamics of the Mozambique metical with respect to the US dollar and the South African rand. However, instead of using standard I(0)/I(1) techniques, we use long memory and fractionally integrated and co‐integrated models. Our results indicate that the two exchange rates are highly persistent, with orders of integration equal to or above 1. They also seem to be co‐integrated, with an order of integration close to albeit above 0 but with an AR coefficient very close to 1. Thus, although the two series seem to be fractionally co‐integrated, shocks in the long‐run relationship between the two variables are persistent and take a long time to disappear.  相似文献   
42.
A vast literature asserts that competition among jurisdictions can mitigate corruption. However, empirical studies do not fully support such a conventional view. This paper points out a drawback of the conventional view, that is, it ignores the role played by the owners of immobile factors. Within a standard tax competition model, we amend the conventional view by incorporating the lobbying of the immobile factor owners, and show that fiscal decentralization can aggravate corruption. We also demonstrate that social welfare can be higher under decentralization than under centralization in some cases, whereas the immobile factor owners' lobbying will prevent such a superiority of decentralization from being the outcome. Moreover, we provide an example to show that a better policy outcome and a higher level of corruption can co‐exist, which contrasts with the general belief.  相似文献   
43.
    
Using detailed data for fieldwork hours and audit hours by rank from audit engagements in Korea, we examine whether audits conducted under workload imbalance, proxied by busy‐season audits, impair audit quality, and how auditors adjust staff assignments for busy‐season audits. We generally find that busy‐season audits are associated with lower audit quality, and that audit firms reduce the involvement of senior auditors during busy‐season audits. In addition, the greater the involvement of senior auditors and junior auditors, the lesser the deterioration in audit quality. Finally, although there is no increase in interim audits in response to workload imbalance during busy seasons, increasing interim audits can mitigate the negative impact of busy‐season audits on audit quality. Our results are relevant to auditors and regulators, who have expressed concerns about the adverse effects of workload imbalance on audit quality.  相似文献   
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45.
Firms developing new products often face the challenge of making investment decisions under uncertain input–cost conditions due to the price volatilities of the materials they use. These decisions need to be made long before the final products are launched on the market. Therefore, firms that invest in the opportunity to switch materials in a timely manner will have the flexibility to react to material price changes and realize competitive advantages. However, volatile material prices may also cause a firm to delay investment. Using real‐options reasoning, this paper studies the influence of input‐cost fluctuations on the timing decision to start new product development (NPD) and thus create the follow‐on opportunity to later replace an existing product. A model that combines waiting and switching options to derive influencing factors of the flexibility value that triggers the investment is developed and tested on a sample of material substitution projects from manufacturing firms. The results show how price uncertainty of the new and the old material, their joint price development, the expected project duration, and competitive preemption are related to the propensity to delay the start of NPD. The findings provide new insights on how timing in adopting materials can be used to hedge exposure to volatile material prices. The insights are relevant for adopters and producers of new materials, as well as for policy makers who strive for supporting the diffusion of new materials.  相似文献   
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47.
    
In situations of excess demand, many firms use waiting lists to allocate products and services among their customers. The resulting allocation is likely to be inefficient, creating opportunities for Pareto improving trades among those who are waiting in line. Yet, in the queuing context, the trading of places is rare and inefficiencies often persist over time. In this paper, I report the results of a field experiment which allows randomly selected customers to earn up to $10 for letting a stranger cut in line. The higher the offer, the more likely it is that individuals let someone cut in. But while a majority agrees to wait longer, only a small minority accepts the monetary reward. Trading in this market is constrained by multiple social concerns. The obligation not to exploit situations of excess demand and efficiency considerations influence the willingness to let a stranger jump the queue.  相似文献   
48.
Abstract: This paper studies the emergence of developing countries from a development trap. It shows that countries whose dynamics exhibits several growth peaks can be considered as cases of equilibrium jump. Applying this criterion to a sample of 65 countries that were initially very poor in 1950, it identifies 13 such countries, called ‘emerging economies’. Comparing emerging and non‐emerging economies in the 1950s and early 1960s, it shows that economic take‐offs starting in the 1960s can be related to health and education in the early 1950s, while other possible factors, such as savings, openness and democracy are not significant.  相似文献   
49.
    
We characterize prior‐by‐prior Bayesian updating using a model proposed by Gilboa, Maccheroni, Marinacci, and Schmeidler (2010) that jointly considers objective and subjective rationality. These rationality concepts are subject to the Bewley unanimity rule and maxmin expected utility, respectively, with a common set of priors and the same utility over consequences. We use this setup with two preference relations to develop a novel rationale for full Bayesian updating of maxmin expected utility preferences.  相似文献   
50.
This study examines the effect of the ‘Everything But Arms’ (EBA) trade preferences regime on exports from the African, Caribbean and Pacific countries (ACP) to the European Union (EU). With this aim, an augmented gravity model is estimated for exports from the 79 ACP countries to the EU‐15 for the time period of 1995—2013 using panel data techniques. The results are used to quantify the effect of the eligibility for EBA preferences on the export performance of the ACP least developed countries (LDCs) and to relate it to the impact of official development assistance on exports. In addition to their separate effects, the combined impact of EBA and aid flows is examined. The main results do not provide evidence for an additional positive effect of the EBA agreement on the export performance of the ACP LDCs. However, receiving aid shows a significant and positive effect on exports from EBA‐eligible ACP countries to the EU‐15, supporting an EU development strategy that includes both sorts of assistance, aid and trade preferences.  相似文献   
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