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41.
This study discusses the composition of strategic management teams in foreign subsidiaries beyond decisions solely about the general manager, i.e. encompassing third-country nationals; locally hired “foreigners” as well as managers on short-term assignments. We extend the discussion about expatriates by developing hypotheses about those issues based on the resource-based view of the firm and the principal agent theory and find that both are important for understanding staffing decisions. This research analyses these issues by means of a data set on German subsidiaries in Japan and shows that recent changes in the global environment are providing multinationals greater latitude when staffing foreign-based subsidiaries, including choices that have not been given due weight in IHRM literature. 相似文献
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Theory and Decision - This paper is about (non) participation in efficient risk sharing among agents who have ambiguous beliefs about uncertain states of nature. The question we ask is whether and... 相似文献
43.
Power indices and minimal winning coalitions 总被引:2,自引:2,他引:0
The Penrose–Banzhaf index and the Shapley–Shubik index are the best-known and the most used tools to measure political power of voters in simple voting games. Most methods to calculate
these power indices are based on counting winning coalitions, in particular those coalitions a voter is decisive for. We present
a new combinatorial formula how to calculate both indices solely using the set of minimal winning coalitions. 相似文献
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Soil-atmosphere exchange of carbon dioxide,methane and nitrous oxide in urban garden systems: impact of irrigation,fertiliser and mulch 总被引:1,自引:1,他引:0
Stephen J. Livesley Ben J. Dougherty Alison J. Smith Damian Navaud Luke J. Wylie Stefan K. Arndt 《Urban Ecosystems》2010,13(3):273-293
Urban green spaces provide important ecosystem services, such as amenity, biodiversity, productivity, climate amelioration,
hydrological and biogeochemical cycling. Intensively managed urban gardens can sequester carbon through vegetation growth
and soil C increase, but may experience nitrous oxide (N2O) emissions and reduced soil methane (CH4) uptake from irrigation and fertiliser use. Soil atmosphere exchange of N2O, CH4 and carbon dioxide (CO2) was measured in lawn and wood chip mulched garden areas in Melbourne, Australia in winter, spring and summer under various
water and fertiliser regimes. Gas exchange before and after lawn fertiliser application was measured continuously for three
weeks using an automated chamber system. Applying fertiliser led to a peak N2O emission of >60 μg N m−2 h−1, but overall only weekly irrigation (10 mm) significantly increased mean soil N2O emissions above that in other treatments. Under mulch, mean soil N2O emissions (14.0 μg N m−2 h−1) were significantly smaller than from irrigated lawn (27.9 μg N m−2 h−1), whereas mean soil CH4 uptake under mulch (−30.7 μg C m−2 h−1) was significantly greater (p < 0.01) than in any lawn treatment. Lawns were either a weak CH4 sink or source. Soil C density (0–25 cm) under mulch (12.5 kg C m−2) was greater that under lawn (8.0 kg C m−2). On a carbon dioxide equivalent (CO2-e) basis, soil N2O emissions offset the benefits of soil CH4 uptake. Mulched garden areas provide greatest C sequestration potential in soil and vegetation and the smallest non-CO2 emissions, as soil CH4 uptake offsets a large fraction of soil N2O emissions. Results of this study suggest that reducing the irrigation and fertiliser application to lawns can help mitigate
GHG emissions from urban garden systems, and increasing the area of mulched perennial garden beds can also provide net GHG
benefits; however, this needs to be tested in other garden systems with different soil types and environmental conditions. 相似文献
46.
The paper presents a set of games of competition between two or three players in which reward is jointly determined by a stochastic
biased mechanism and players’ choices. More specifically, a resource can be found with unequal probabilities in one of two
locations. The first agent is rewarded only if it finds the resource and avoids being found by the next agent in line; the
latter is rewarded only if it finds the former. Five benchmarks, based on different psychological and game-theoretic assumptions
are derived and their predictions compared to actual behavior of 120, 40, and 48 participants playing repeatedly. Of the five
benchmarks—the unique (Nash) equilibrium, reinforcement learning, trust-based efficiency, maximum unpredictability, and regret-based
(Impulse Balance) equilibrium—regret for missed opportunities best accounts for the qualitative aspect of participants’ behavior
and regret attenuated by randomization best accounts for the quantitative aspect of behavior. 相似文献
47.
This paper focuses on ex post governance of inter-firm transactions. We develop and test hypotheses on the occurrence of ex post problems like delivery delays, inferior quality, and insufficient service in buyer–supplier transactions. Our hypotheses address effects of transaction characteristics, of social embeddedness, and of contractual governance on the occurrence of problems. Other than earlier research on embeddedness effects in this field, we consider not only effects of dyadic embeddedness but also effects of network embeddedness. We test hypotheses using rich survey data on more than 1200 purchases of information technology (IT) products: hardware and software, both standard and complex. We find evidence for effects of transaction characteristics on the occurrence of problems, while our data do not support hypotheses on effects of contractual governance. Our data provide rather consistent support for hypotheses on the effects of embeddedness. Specifically, we find evidence that network embeddedness reduces problems. 相似文献
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We describe an education and behavior change program with a multi-level approach. The program goal is to change how people think about, use, store, and dispose of toxic household chemicals. We assume that changing long-standing behaviors is difficult, requires interventions at multiple points in the individual/group/society/physical environmental system, and requires interventions that address both short- and long-term behavior change. The heart of our program is small group discussions, with a trained leader who uses psychological theories to increase educational impact. Questionnaires indicated that participants were very pleased with the program, especially recipes for homemade nontoxic alternatives. We estimate that the presentation yielded almost three times as much cooperation as the previous 5 years of publicity and promotion (33% vs. 12%). 相似文献