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   133064篇
  免费   3755篇
  国内免费   2篇
财政金融   25692篇
工业经济   10904篇
计划管理   21296篇
经济学   29217篇
综合类   1465篇
运输经济   883篇
旅游经济   2482篇
贸易经济   21645篇
农业经济   6127篇
经济概况   16862篇
信息产业经济   8篇
邮电经济   240篇
  2021年   829篇
  2020年   1610篇
  2019年   2374篇
  2018年   2372篇
  2017年   2529篇
  2016年   2725篇
  2015年   2073篇
  2014年   3380篇
  2013年   15207篇
  2012年   4193篇
  2011年   4220篇
  2010年   3739篇
  2009年   4333篇
  2008年   3921篇
  2007年   3276篇
  2006年   3573篇
  2005年   3562篇
  2004年   3121篇
  2003年   2813篇
  2002年   2801篇
  2001年   2504篇
  2000年   2338篇
  1999年   2192篇
  1998年   2053篇
  1997年   2078篇
  1996年   1982篇
  1995年   1958篇
  1994年   1967篇
  1993年   1962篇
  1992年   1970篇
  1991年   1868篇
  1990年   1724篇
  1989年   1572篇
  1988年   1516篇
  1987年   1530篇
  1986年   1616篇
  1985年   2377篇
  1984年   2247篇
  1983年   2054篇
  1982年   1912篇
  1981年   1901篇
  1980年   1875篇
  1979年   1770篇
  1978年   1613篇
  1977年   1593篇
  1976年   1356篇
  1975年   1250篇
  1974年   1162篇
  1973年   1149篇
  1972年   862篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
81.
82.
Using social tables, this article provides new data on inequality in Germany and Britain on an annual basis for the first half of the twentieth century. Inequality trends in these two countries tended to follow opposite patterns. The decline in inequality in Germany was interrupted during the First World War and the Nazi period, while in Britain the reversal took place between the end of the First World War and the Great Depression. Results show that the drop in inequality during the twentieth century in Europe did not follow secular trends, thus supporting the notion of inequality cycles.  相似文献   
83.
84.
This research is the first to describe financial knowledge in the Islamic Republic of Iran. Data were collected from a convenience sample of investors in the Tehran Stock Exchange. The data were used to examine objective and subjective knowledge as well as overconfidence in one's financial knowledge. The results indicated that compared with other populations, Iranians did not perform well on either basic or advanced financial knowledge questions, especially when the questions dealt with interest rates. This is likely related to the Islamic law ban on usury‐based investing. Regression analysis indicated that demographic charactristics related to basic financial knowledge were income, labour force status and being a student. Demographic characteristics related to advanced financial knowledge were education, labour force status and age. Higher income and education reduced the odds of being overconfident about one's financial knowledge, while being a student and male increased the odds. The article concludes with recommendations about future research as well as building a national financial education strategy.  相似文献   
85.
The U.S. Department of Agriculture operates several food assistance programs aimed at alleviating food insecurity. We study whether participation in both participation in both SNAP and WIC alleviates food insecurity compared with participation in SNAP alone. We bound underlying causal effects by applying nonparametric treatment effect methods that allow for endogenous selection and underreported program participation when validation data are available for one program (treatment) but not the other. We estimate average treatment effects using data from the National Household Food Acquisition and Purchase Survey (FoodAPS). FoodAPS includes administrative data to validate SNAP participation. Information on local food prices allows us to construct a food expenditure‐based monotone instrumental variable that does not require a typical instrumental variable exclusion restriction. Under relatively weak monotonicity assumptions, we identify that the impact of participating in both programs relative to SNAP alone is strictly positive, suggesting that the programs are nonredundant. This evidence can support improved design and targeting of food programs.  相似文献   
86.
We investigate whether tax avoidance and manager diversion are complementary when the costs of diversion are low by comparing dividend payouts, performance, and overinvestments of tax haven firms versus other multinational firms based in countries with weak and strong investor protections. Desai and Dharmapala (2006, 2009a, b) and Desai et al. (2007) set forth a theory of tax avoidance within an agency framework (the D&D theory) based on the assumption that tax avoidance and manager diversion are complementary when the corporate governance system is “ineffective” (i.e., the manager's expected costs of diversion are low). Tax haven firms are corporate groups whose parent firms are incorporated in tax haven countries that are not the countries where the groups’ headquarters or primary operations are located (i.e., their “base” countries). We argue that tax haven incorporation potentially lowers the costs of diversion for managers of firms based in countries with weak investor protections. Using a sample from 28 base countries, we provide evidence that manager diversion and tax avoidance are complementary for tax haven firms based in countries with weak investor protections but not for tax haven firms based in countries with strong investor protections. Our results are consistent with the complementarity assumption underlying the D&D model and provide additional insights into the potential impact of the decentralization of the global firm.  相似文献   
87.
Business Economics - What is the strategic value of flexible labor contracts to workers? To answer this question, we examine workers’ labor supply decisions when choosing among alternative...  相似文献   
88.
This paper investigates the implementation of “one village, one product” (OVOP) in four peri‐urban villages in China's Yangtze River Delta. China's agricultural transformation, including the introduction of new corporate actors and the growing pressure of market discipline, has challenged the relevance of villages in the organization of agricultural production. In response, village cadres in thousands of Chinese villages have used OVOP to transform their villages into agro‐industrial firms and re‐exert their control over the agricultural surplus, echoing earlier examples of village corporatism. Rooted in agricultural specialization, OVOP encompasses a diversity of strategies for the production of locality‐based value. I disaggregate these strategies into four sociospatial dimensions that comprise locality—place, network, territory, and scale. Place‐based branding is the dominant strategy, but village cadres also pursue complementary sociospatial strategies to ensure their control over the realization of the brand's value and reconstitute their redistributive and administrative powers.  相似文献   
89.
Empowering women farmers to participate in agricultural research is a key strategy for sustainable agricultural development. Women empowerment has the potential to improve their roles in agricultural production while enhancing nutrition and food security. Although new agricultural development policies are focusing on improving women engagement in agriculture, there is limited literature on women empowerment in relation to agricultural research. This study used mixed methods to analyse women farmers’ participation in four stages of the agricultural research process – design, testing, dissemination, monitoring and evaluation. Two hundred and thirty individual interviews with women farmers and 16 focus group discussions with men and women farmers were conducted in four Woredas (districts) of Ethiopia. Quantitative data were analysed using binary and multivariate probit models. Qualitative data were analysed using line-by-line coding. The results showed that several empowerment indicator variables significantly (p?≤?.001) influenced women’s participation in different stages of agricultural research. Specifically, input in production decisions, autonomy in plot management, membership to farmer groups, and ability to speak in public enhanced women’s participation in different stages, in addition to access to information and extension services, education and land size. Cultural norms hindered women’s empowerment and engagement in research. To foster sustainable agriculture development, it’s important to integrate holistic and proactive gender perspectives into research strategies to increase women’s participation in farmer research groups, access information and knowledge, have voice and challenge constraining cultural norms and traditions.  相似文献   
90.
Drawing insights from the broader training literature, we argue that evaluation of cross-cultural training effectiveness should adopt comprehensive criteria, including cognitive, skill-based, and affective learning outcomes as well as adaptive transfer. We propose that the integration of an error management supplement in cross-cultural training can enhance trainee acquisition of self-regulation skills and self-efficacy that facilitate adaptive application of learning to novel cultural situations. In addition to the traditional error management training designs (i.e., positive error framing), the current paper describes additional design elements to promote acquisition of cognitive strategies, prevent premature automaticity, alleviate concerns about error occurrence during learning, and enhance readiness to transfer. In addition, we offer propositions regarding the effects of the supplement on learning and transfer outcomes, along with implications for future research and practice on cross-cultural training.  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