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1.
刘世豪 《科技和产业》2020,20(4):98-102
利用2007—2017年长三角地区数据,通过区位熵构建制造业与生产性服务业协同集聚指数,同时建立表示劳动力流动、资本流动以及技术扩散的变量,通过差分GMM来估计变量之间的关系。结果发现,在选择的年份当中,初始协同集聚程度会影响后续的产业协同集聚程度,同时劳动力流动以及技术扩散均会促进协同集聚程度,资本流动会给协同集聚带来负向影响。  相似文献   
2.
Integrating signalling theory and the portfolio diversity literature, we theorize that diversity in a firm's patent and alliance portfolios sends contrasting flow signals impacting its market value in a nuanced way. Diversity in an alliance portfolio mediates the patent portfolio diversity – market value relationship by suppressing the negative effect of patent portfolio diversity creating an overall positive effect. We test our mediation model on a longitudinal set of 225 US biopharmaceutical firms that were awarded 17,078 patents and participated in 37,744 alliances between 1990 and 2006. Our theory and findings contribute three novel insights. First, we demonstrate the value of a temporal lens in explaining why diversity in a firm's patent and alliance portfolios send flow signals that establish expectations among market observers and have performance implications. Second, establishing that patent and alliance portfolio diversity are temporally sequenced provides compelling evidence for the value of studying multiple types of portfolios, their temporal relationships and effects on firm outcomes. Third, since diversity in a firm's portfolios can send contrasting flow signals conditioned on the cognitive demands and proximity involved in interpreting the signals, firms that do not maintain a ‘signalling fit’ with market observers increase the probability of unintentional negative signalling effects.  相似文献   
3.
The case requires students to evaluate the current situation and growth options of a small business, Dory & Nemo Early Learning Center (D&N), which provides intergenerational programming to preschool children at a retirement home. The learning center was opened in September 2014, and it was able to make a small profit each year. However, it is projected that there would be a 75 percent decrease in net income from $8,072 in Fiscal 2016 to $1,819 in Fiscal 2017. Davis and Nathans, business partners of D&N, met to discuss the following growth options: (i) Mosaic Retirement Residences' proposal to set up two learning centers at their retirement homes each year for a total of six in three years and (ii) Harmony Retirement Residences' proposal for leasing space to set up learning centers at their retirement homes, one new learning center a year for a total of three in three years. Furthermore, Davis and Nathans had decided to increase the program fee from $320 to $350 per week for the 2017–18 academic session in September. They would also like to reduce their workload from 50 to 40 hours per week, increase their vacation time from two to three weeks, and increase their salaries and bonuses. Students must consider personal objectives of business partners and mission of D&N in the analysis. They learn to identify relevant information for decision making, apply appropriate analytical tools for quantitative analysis, integrate qualitative and quantitative factors in decision making, and make recommendations consistent with analysis.  相似文献   
4.
Operating cash flow (CFO) asymmetric timeliness occurs when CFO reflects bad news more quickly than good news. We examine the presence and determinants of CFO asymmetric timeliness in Australia, where substantial differences in reporting requirements of cash flow components, in characteristics of listed companies and in the degree of conservative financial reporting produce contrasting findings to those in the United States. We find supportive evidence for the novel ‘sticky cost behaviour’ explanation and also the product-pricing strategy, but not the life cycle hypothesis. These findings are useful for investors and analysts concerned with forecasting the future values of companies.  相似文献   
5.
We examine a sample of 625 public–private partnership (PPP) firms from 1980 to 2015 that straddle nine countries with varying degrees of economic development and PPP markets. We find that the motivations of the firms that undertake PPP investments vary. While private sector firms in economies with low institutional quality choose to engage in PPPs to alleviate capital constraints attributed to underinvestment, those in economies with high institutional quality participate in PPPs to solve the problem of overinvestment due to an abundant cash flow. In the long run, the benefits of lower capital constraints through PPP investments are more pronounced in economies with high institutional quality.  相似文献   
6.
According to a recent conjecture in the literature, earnings have become a poorer proxy for cash flow from operations over time. We find that since 1988, when cash flow statements started to be consistently reported in Compustat, the cash effectiveness of earnings has actually increased for a large sample of US manufacturing firms. This occurs despite the introduction of fair value accounting and increasing accounting accruals during the last three decades. Also contrary to the conjecture, using more comprehensive measures of cash flow does not restore the investment-cash flow sensitivity, which continues to be around 0.05 in more recent periods.  相似文献   
7.
A new approach to allocate environmental responsibility, the ‘value added-based responsibility’ allocation, is presented in this article. This metric allocates total environmental pressures occurring along an international supply chain to the participating sectors and countries according to the share of value added they generate within that specific supply chain. We show that – due to their position in global value chains – certain sectors (e.g. services) and countries (e.g. Germany) receive significantly greater responsibility compared to other allocation approaches. This adds a new perspective to the discussions concerning a fair distribution of mitigation costs among nations, companies and consumers.  相似文献   
8.
王莎  童磊  贺王德 《技术经济》2019,38(10):74-81
依据城市群理论,城市之间的联系强弱是决定城市能否连接为一体、协同发展的重要因素。基于此,以2017年数据为背景,在综合利用城市职能强度模型、修正的空间引力模型和城市流模型的基础上,对京津冀城市群内部的空间联系进行实证研究,结果表明:北京和天津的"空吸"效应严重,资源要素向两市集聚,占据城市群绝对的核心位置;京津两市空间引力作用最大,远超群内其余城市,说明经济基础和空间距离是制约城市间联系紧密的关键要素;京津冀城市群整体外向型服务业发展良好,但是主要依赖传统服务业,高端服务业发展较弱;次级城市相对缺乏,整个京津冀城市群尚未形成良好的阶梯结构。最后,依据研究结果提出相应建议。  相似文献   
9.
10.
China's current account surplus declined significantly from its peak of nearly 10 percent of GDP in 2007 to less than 1 percent in 2018. The new pattern offered fresh evidence for our understanding of China's current account dynamics. In this paper, we used flow of funds data to gauge its underlying driving forces. Specifically, by employing index decomposition analysis, we decomposed the current account from the perspective of savings and investment into three sectors: the household, corporate, and government sectors. We found that the decline in China's current account ratio was first driven by cyclical factors, i.e. weak corporate saving growth induced by the economic slump in 2009 as well as the following massive corporate investment bolstered by the government stimulus plan. However, such cyclical factors quickly subsided, and the subsequent current account balance reduction was later supported by structural factors, i.e. household savings declined enduringly and the Chinese government switched to a more expansionary fiscal policy. There are three possible explanations for the structural movement: reduced precautionary saving due to higher social security coverage ratio, lower corporate profits as a result of economic slowdown, and a twin deficit due to the government's more relaxed fiscal stance. The new facts, however, were not consistent with other current account theories focusing on long‐term aspects of the saving–investment account puzzle, especially those relating to China's special demographic characteristics.  相似文献   
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