全文获取类型
收费全文 | 19461篇 |
免费 | 253篇 |
国内免费 | 2篇 |
专业分类
管理学 | 2821篇 |
民族学 | 134篇 |
人口学 | 3153篇 |
丛书文集 | 40篇 |
理论方法论 | 1237篇 |
综合类 | 475篇 |
社会学 | 8487篇 |
统计学 | 3369篇 |
出版年
2023年 | 72篇 |
2020年 | 147篇 |
2019年 | 210篇 |
2018年 | 1834篇 |
2017年 | 1920篇 |
2016年 | 1294篇 |
2015年 | 229篇 |
2014年 | 269篇 |
2013年 | 1724篇 |
2012年 | 625篇 |
2011年 | 1347篇 |
2010年 | 1238篇 |
2009年 | 965篇 |
2008年 | 1058篇 |
2007年 | 1238篇 |
2006年 | 247篇 |
2005年 | 429篇 |
2004年 | 421篇 |
2003年 | 354篇 |
2002年 | 268篇 |
2001年 | 220篇 |
2000年 | 201篇 |
1999年 | 160篇 |
1998年 | 133篇 |
1997年 | 132篇 |
1996年 | 160篇 |
1995年 | 115篇 |
1994年 | 89篇 |
1993年 | 127篇 |
1992年 | 140篇 |
1991年 | 125篇 |
1990年 | 133篇 |
1989年 | 112篇 |
1988年 | 115篇 |
1987年 | 113篇 |
1986年 | 103篇 |
1985年 | 88篇 |
1984年 | 118篇 |
1983年 | 103篇 |
1982年 | 99篇 |
1981年 | 67篇 |
1980年 | 97篇 |
1979年 | 107篇 |
1978年 | 75篇 |
1977年 | 83篇 |
1976年 | 75篇 |
1975年 | 88篇 |
1974年 | 71篇 |
1973年 | 59篇 |
1972年 | 65篇 |
排序方式: 共有10000条查询结果,搜索用时 283 毫秒
931.
Ricarda B. Bouncken Sven M. Laudien Viktor Fredrich Lars Görmar 《Review of Managerial Science》2018,12(2):385-410
Coopetition has the potential to improve entrepreneurship and innovation. It will be prevalent in coworking-spaces building a growing field for individual and corporate entrepreneurship. The individuals’ physical closeness in the professional and social space of the coworking-space eases multifaceted transfers of explicit and implicit knowledge, stimulating creation, transfer, overhaul, and implementation of entrepreneurial ideas. While entrepreneurs in these coworking-spaces collaborate on sharing knowledge and resources and on finding creative ideas from which can breed new venture concepts, they simultaneously compete on the appropriation of values. Thus, entrepreneurs in coworking-spaces face coopetitive tensions of creating and appropriating the values. Based on interview data and secondary sources, this paper explains four different prototype institutions of coworking-spaces: the corporate coworking-space, the open corporate coworking-space, the consultancy coworking-space, and the independent coworking-space. Study explains different tensions of value creation and appropriation that occur within the coopetition in the different forms of coworking-spaces. 相似文献
932.
This special issue is an outcome of the 2017 Global Innovation and Knowledge Academy (GIKA) Conference, which took place at ISEG School of Economics and Management, Lisbon, Portugal, between June 28th and 30th, 2017. As the seventh of its kind, the 2017 GIKA Conference continued to attract the attention of scholars from around the world, receiving more than 600 submissions, only 300 of which were accepted for presentation at the conference. The topic of this special issue—the relation between coopetition and innovation/entrepreneurship—had an own track at the GIKA Conference, which served as a first round review for some of the submissions to the journal. The special issue was also open for external submissions. 相似文献
933.
This paper experimentally examines the impact of contract design on insurance fraud. We test how fraud behavior varies for insurance contracts with full coverage, a straight deductible or claim-dependent premiums (bonus-malus contracts), in a setup where rational and selfish individuals have an incentive to always claim the maximum possible indemnity. We find a substantial impact of contractual arrangements: Deductible contracts lead to a greater extent to claim build-up than full coverage contracts. In contrast, bonus-malus contracts that entail the same net gains from fraud as deductible contracts do not increase claim build-up. Thus, our results indicate that bonus-malus contracts may be superior to deductible contracts for behavioral reasons. 相似文献
934.
Wolfgang Hora Johanna Gast Norbert Kailer Andrea Rey-Marti Alicia Mas-Tur 《Review of Managerial Science》2018,12(2):411-439
Coopetition (collaboration between competitors) among young firms (i.e. start-ups) and larger, more established firms (i.e. corporates) may be beneficial for both partners as each party typically has something to offer that is missing in the other. Start-ups often develop innovative ideas, are flexible and agile, willing to take risks, and aspire to achieve high growth, but they tend to lack the required resources, capabilities, and knowledge due to their newness and smallness. Corporates have resources, routines, and experience that enable them to work efficiently but lack a certain innovation capability. Research has suggested that coopetition represents an opportunity for start-ups facing restrictions in resources, while corporates benefit from start-ups’ innovative ideas. However, it is yet unknown whether start-ups and corporates engage in coopetition with each other and, if so, how and why they do this. This study seeks to fill this void by exploring the motives of coopeting start-ups and corporates, how they manage their coopetitive relationship, and what implications occur including potential benefits and risks. We present a multiple case study based on qualitative data collected through 70 interviews with Austrian-based start-ups and corporates representing 35 coopetitive partnerships. Discussing the findings based on our data, we propose relationships concerning coopetition and its role to enlarge resource- and technology-bases as well as its role in the development of dynamic capabilities. 相似文献
935.
Yana Kucheva 《Demography》2018,55(2):617-642
Despite abundant evidence about the effect of children’s socioeconomic circumstances on their transition to adulthood, we know much less about the effect of social policy programs aimed at poor families with children in facilitating how and when children become adults. This issue is particularly important for the U.S. federal subsidized housing program given its long history of placing subsidized units in some of the poorest and most racially segregated neighborhoods. Using counterfactual causal methods that adjust for the length of receipt of subsidized housing, I estimate the effect of subsidized housing on teenage parenthood, household formation, and educational attainment. I find that the subsidized housing program has either null or positive effects on the transition to adulthood and that these effects vary by both race and gender. These results underscore the importance of considering whether social programs have differential effects on the life chances of individuals based on both race and gender. 相似文献
936.
In this article, we examined what has contributed to the worsening income inequality and poverty between 1996 and 2011 in South Korea. We used a rank-preserving exchange method and a conditional reweighting method to assess the roles of family behaviors—including female labor force participation and family structure—characteristics of household heads, and men’s earnings. The results showed that the change in men’s earnings was a dominant factor in accounting for the increasing income inequality and poverty. The change in age and education among household heads also contributed significantly to the worsening income distribution. The change in family structure mainly affected the income disparity among lower-income families and increased poverty. The rise in women’s labor force participation improved the income distribution but not considerably. The distributional roles of family have not worked to prevent or reverse the worsening income distribution in the past few decades in South Korea. 相似文献
937.
Fabian T. Pfeffer 《Demography》2018,55(3):1033-1068
Prior research on trends in educational inequality has focused chiefly on changing gaps in educational attainment by family income or parental occupation. In contrast, this contribution provides the first assessment of trends in educational attainment by family wealth and suggests that we should be at least as concerned about growing wealth gaps in education. Despite overall growth in educational attainment and some signs of decreasing wealth gaps in high school attainment and college access, I find a large and rapidly increasing wealth gap in college attainment between cohorts born in the 1970s and 1980s, respectively. This growing wealth gap in higher educational attainment co-occurred with a rise in inequality in children’s wealth backgrounds, although the analyses also suggest that the latter does not fully account for the former. Nevertheless, the results reported here raise concerns about the distribution of educational opportunity among today’s children who grow up in a context of particularly extreme wealth inequality. 相似文献
938.
In this article, we examine birth cohort differences in parents’ provision of monetary help to adult children with particular focus on the extent to which cohort differences in family structure and the transition to adulthood influence these changes. Using data from the Health and Retirement Study from 1994 to 2010, we compare financial help to children of three respondent cohorts as the parents in these birth cohorts from ages 53–58 to 57–62. We find that transfers to children have increased among more recent cohorts. Two trends—declining family size and children’s delay in marriage—account for part of the increase across cohorts. However, other trends, such as the increase in the number of stepchildren and increasing child’s income level, tend to decrease the observed cohort trend. 相似文献
939.
Swarna Ukwatta 《Journal of Population Research》2010,27(2):107-131
Sri Lanka is one of three countries in Asia, along with the Philippines and Indonesia, where women migrants constitute between
60 and 70% of legal migrants; these female migrants are mainly employed overseas as domestic workers. Since the 1980s, the
out-migration of Sri Lankan females for employment abroad surpassed that of males and the major destination has been countries
in the Middle East. The majority of these women are married and have at least one child; they leave their children in the
care of other family members in their absence. While they usually make arrangements to accommodate the spatial separation
forced by migration, their migration poses many challenges to themselves and their children left behind. Recently, the issue
of children left behind by migrant mothers has attracted growing attention from policy makers in Sri Lanka. Since the social
and emotional ramifications of mothering from a distance and how these mothers cope with them are inadequately investigated,
this article uses data collected from a 2008 survey of 400 Sri Lankan female migrant families to examine the effects of mothers’
migration on how they are mothering their children from a distance, and how they perceive the effects on their children. The
article concludes with some suggested policy recommendations. 相似文献
940.
In lieu of diverse consequences in the demand and supply of health care professionals such as nurses and midwives in Australia
and the world, a firm understanding of the characteristics of staff mobility and the factors influencing their retention could
lead to achieving enhanced service delivery, greater job satisfaction, and the establishment of a more stable and robust workforce.
The research reported in this paper attempts to shed light on qualitative aspects of mobility in health care professional
staff in the Northern Territory of Australia. It builds upon an existing survey study of the quantitative factors that determine
why nurses and midwives come to the Northern Territory, why some stay and why many leave, by analysing additional qualitative
textual responses of participants using semantic network approaches to natural language processing. Our results illustrate
the methodological and policy significance of semantic approaches to knowledge acquisition and representation, especially
in complementing findings of traditional survey analysis techniques, and in analysing the broader social settings, effects
and consequences of staff retention and mobility. 相似文献