首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5354篇
  免费   259篇
  国内免费   78篇
财政金融   410篇
工业经济   280篇
计划管理   838篇
经济学   1370篇
综合类   697篇
运输经济   103篇
旅游经济   191篇
贸易经济   635篇
农业经济   526篇
经济概况   640篇
信息产业经济   1篇
  2024年   1篇
  2023年   77篇
  2022年   60篇
  2021年   101篇
  2020年   159篇
  2019年   123篇
  2018年   120篇
  2017年   146篇
  2016年   158篇
  2015年   156篇
  2014年   329篇
  2013年   463篇
  2012年   454篇
  2011年   498篇
  2010年   341篇
  2009年   414篇
  2008年   380篇
  2007年   336篇
  2006年   312篇
  2005年   253篇
  2004年   159篇
  2003年   133篇
  2002年   106篇
  2001年   107篇
  2000年   82篇
  1999年   52篇
  1998年   33篇
  1997年   19篇
  1996年   26篇
  1995年   17篇
  1994年   10篇
  1993年   13篇
  1992年   10篇
  1991年   3篇
  1990年   6篇
  1989年   3篇
  1988年   2篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1984年   9篇
  1983年   3篇
  1982年   6篇
  1981年   1篇
  1979年   2篇
  1978年   1篇
排序方式: 共有5691条查询结果,搜索用时 0 毫秒
1.
This work presents key insights on the model development strategies used in our cross-learning-based retail demand forecast framework. The proposed framework outperforms state-of-the-art univariate models in the time series forecasting literature. It has achieved 17th position in the accuracy track of the M5 forecasting competition, which is among the top 1% of solutions.  相似文献   
2.
汪洁  李刚伟 《价值工程》2021,40(2):64-65
为响应大众创业的号召,我国中小企业不断发展,为社会提供就业岗位也为经济发展添砖加瓦。然而,在市场竞争压力不断增强的当下,中小企业要重视推进人力资源管理质量提升。通过薪酬福利的有效应用来激发工作人员的工作积极性和创造力,以此为中小企业的发展贡献出更高水平的价值。本文在分析中小企业薪酬福利现状的同时,提出相关对策思考。  相似文献   
3.
当前我国居民消费不足的最主要原因在于居民收入水平不高、国民收入分配失衡,所以2018年个人所得税改革的重点是提高费用扣除标准、调整税率结构,降低纳税人负担,增加纳税人可支配收入,提高居民消费水平。要进一步促进居民消费,个人所得税有必要继续减税,同时进一步调节收入分配差距,使收入分配更加公平。具体对策包括:将专项附加扣除中的子女教育支出范围扩大为子女养育支出,增加家庭合并征税模式,费用扣除标准指数化动态调整,进一步优化税率结构,建立负所得税制度。  相似文献   
4.
基于1997~2017年的跨国面板数据,构建双向固定效应模型研究实际汇率对劳动参与率的影响效应。研究结果显示:(1)实际汇率升值会降低劳动参与率,贬值则提升劳动参与率;(2)实际汇率变动主要通过影响劳动力需求,进而影响劳动参与率;(3)相比于高收入国家,中低收入国家实际汇率变动对劳动参与率的影响更显著。因此,汇率政策的制定需要考虑其对劳动参与率的影响。在中国经济发展过程中,也应采取适当措施来抵消人民币升值对劳动参与率的不良影响。  相似文献   
5.
苏南乡村地区一直是中国乡村建设的先行区域,特殊的纵横交错的水网结构构成了一个错综复杂的系统,呈现出其他地区不具有的复杂性和生态特殊性。随着城镇的扩张,乡村的发展建设使其水网空间的平衡发展面临极大的挑战。传统单一静态的规划方法逐渐显示出无法适应经济、社会等发展要求的缺陷。苏南乡村地区以水为核心,从水生态系统服务供需关系的视角下探究水网乡村的适应性规划策略更加适应当前的乡村现状和需求。以传统水网乡村空间形态转译为基础,建立水生态系统供需服务评估体系,在评估水生态系统服务供需能力的基础上,分析供需分异模式及供需矛盾。从构建乡村水域空间生态格局、乡村水域空间功能分区规划,以及乡村水域空间多情景预判3个方面,提出苏南水网乡村的适应性规划策略,并为水网乡村的生态实践提出新思路。  相似文献   
6.
随着全球气候变暖问题的逐渐严重,各国开始重新认识并重视森林的生态功能,林业碳汇逐渐成为重要的减排手段之一,林业碳汇产业也成为各国的新兴产业。针对我国林业碳汇产权不明、相关风险管理不到位、市场需求不足、投资收益相对低等问题和林业碳汇融资的的制约因素进行分析,从产权、风险、需求、收益等四个方面给出了相关的发展对策。  相似文献   
7.
This paper identifies for the first time the optimal target markets employing the latent tourism demand expenditure, a novel concept in tourism literature. The study quantifies latent tourism demand between each pair of origin-destination through distinguishing by type of tourism and seasonality. It works with market shares that are estimated via a fractional regression model. Moreover, latent demand is clustered using a market segmentation approach based on a latent class regression. Finally, the optimal target markets are chosen depending on the expected latent tourism expenditure. The result has clear policy implications in terms of which markets are promoted, the optimal channels of communication and the maximum budget for each marketing campaign.  相似文献   
8.
Retailing strategy is one of the most crucial factors for industries. A proper retailing strategy can help to enhance consumer service and increase the industry's profit. An improved approach to retailing is suggested in this research to deliver superior customer service while maximizing profits in a dynamic system. The study analyzes a retailing strategy for a demand with cross-price elasticity upon the retail price. A product's cross-price elasticity and the system reliability are critical factors in retailing. Understanding the cross-price elasticity of demand between products helps retailers to make pricing decisions that maximize profits by maintaining demand. Imperfect products are produced due to an imperfect production system. The imperfect ones must be adjusted with some costs to make them perfect for better retailing. The system failure rate is crucial for retailing under cross-price elasticity of demand patterns. Production system reliability, cross-price elasticity of demand, and consumer service are all essential factors that can impact a company's success in the market. The production rate is considered time- and system failure rate-dependent. Contradictory to the literature, a dynamical system is proposed for improved retail management, which is solved using the Euler-Lagrange theory. Finally, one can achieve the expected maximum profit for this retail system with optimum selling prices for different products by reducing the system failure rate. Some numerical illustrations with graphical representations are provided to validate the current study. Numerical examples show that applying cross-price elasticity of demand for more than two identical products provides 35% more profit for the retail industry than a single type of product.  相似文献   
9.
The drivers of the prices of Bitcoin and Ethereum are studied within a framework based on Cagan’s model of hyperinflation. In the model, the prices of the cryptocurrencies are driven by stochastic adoption and velocity shocks as well as endogenous expectations of future prices. The model is estimated with data for prices, transaction volumes, and money supplies. A majority of price fluctuations in both currencies can be attributed to shocks in adoption, velocity shocks are much less important. The money demand sensitivity to expected price changes is estimated to be larger for Bitcoin than for Ethereum, and both have higher sensitivity than fiat currencies during episodes of hyperinflation.  相似文献   
10.
Nowadays, industrial firms are very much careful to build a green environment by reducing carbon emissions. The government imposes some rules and regulations to provide a better eco-friendly environment. In this study, the cap-and-trade mechanism has been considered in a production model to control the carbon emissions rate. The manufacturers invest in advanced green technology to reduce per unit emissions. As online and offline selling is crucial to any industry for increasing customer demand, the manufacturers sell their products by dual-channel and advertise their products by online channel to make more popular of their products. Keeping these in mind, a sustainable flexible production model with single-type substitutable product production is considered here by imposing a cap-and-tax policy, investing in green technology, and advertising for products. This model is divided into two cases: with and without investment in green technology. The demand of each manufacturer depends upon an online selling price, an offline selling price, and an online advertisement of the product. A classical optimization technique helps to get the optimum strategies for the online selling price, offline selling price, advertisement investment, green technology, cycle time, and production rate. From the numerical study, it is proved that the industry gets 6.97% more profit in the case of green technology investment and the proposed study gives 5.74% more profit than the traditional production system. Sensitivity analysis and managerial insights are performed.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号