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排序方式: 共有1814条查询结果,搜索用时 31 毫秒
51.
Researchers have spent substantial effort to identify factors influencing pesticide use intensity. However, few studies have compared the relative importance of these factors. This study examines four categories of factors that potentially influence farmers’ pesticide use decisions by evaluating incentivized experiment data, farm survey data, and remote sensing data in China. Our results suggest that land diversification has the largest effect on farmers’ pesticide use. Compared with the most rice-intensive landscape type, less rice-intensive systems cause farmers to spray less on middle rice. Heavy pesticide use intensity is associated with land fragmentation as small-scale farms still dominate crop production. Farmers’ integrated pest management knowledge has significant effects on pesticide use. We also find that loss and ambiguity preferences, rather than risk preferences, are more likely to affect pesticide use intensity. 相似文献
52.
基于各省出台的创新型省份建设方案,运用省级政府面板数据,实证研究了创新型省份建设对预期建设目标的影响。结果发现,创新型省份建设仅对可操控程度较高、完成难度较低的建设目标具有显著影响,而对可操控程度较低、完成难度较高的建设目标无显著影响;高强度激励对建设目标实现的影响作用较大。公开建设方案、科学设定建设目标、促进多部门参与、建立监督和评估机制是改进创新型省份建设和推进创新驱动发展战略实施的重要突破口。 相似文献
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54.
长期以来,商业银行尤其是大银行拓展中小企业信贷市场一直面临困境。但中国工商银行青岛分行却以中小企业商品交易为基础,较为成功地开发了一系列贸易融资产品。由此可以看出,在特定的产品、制度和技术保证下,大银行也可以成为中小企业信贷市场上的有效资金供给者。 相似文献
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56.
In this paper, we study the behavioural impact of religious priming by showing participants religious words in a scrambled sentence task before a dictator game and a joy‐of‐destruction game. We also elicited data on individual religiosity and religious affiliation using a questionnaire. Priming religious words significantly increased prosocial behaviour in the dictator game, and the effect was especially striking among those reporting no religion, atheists and agnostics. The religious prime has no significant effect in mitigating destructive behaviour or own expectations of the other's destruction choice, but both destructive behaviour and expectations correlate positively with the multi‐dimensional religiosity measure. 相似文献
57.
This study examines the effects of industrial policy support on the initial public offering performance of listed enterprises on the Chinese small and medium‐sized enterprises board. We observe that industrial policy support has a positive effect on IPO performance. In addition, we provide evidence that after the financial crisis, the decrease of IPO underpricing resulting from policy support implemented three months before firms going public is less than that deriving from the policy support issued six months prior to listing, whereas the effect of industrial policy support on post‐IPO operating performance has increased after the financial crisis. 相似文献
58.
In this study,we examine the effects of the transformation of accounting firms’organizational form on audit quality.We find that the transformation from limited... 相似文献
59.
Chenghan Hou 《Oxford bulletin of economics and statistics》2020,82(1):83-124
This paper investigates whether the relationship between inflation and inflation uncertainty has changed and whether the change in this relationship has been gradual or abrupt. We extend the time-varying parameter with stochastic volatility in mean model (TVP-SVM) to include a mixture innovation disturbance in the time-varying parameter process. The proposed model produces more reliable estimates and allows us to investigate the occurrence of breaks in the gradually evolving process of the time varying coefficients. Using data of US, Germany, Canada, New Zealand, UK, France, Italy, Spain and Australia, we find that: (i) the relationship between inflation and inflation uncertainty substantially varies over time; (ii) there is strong support for the existence of abrupt changes in the US inflation–inflation uncertainty relationship; (iii) our empirical results of Canada and New Zealand show that the correlation between inflation and inflation uncertainty has been much weaker since early 1990s, which coincides with the timing of the implementation of inflation targeting. 相似文献
60.
中华老字号非遗技艺具有重要的历史文化价值、科学价值和市场价值,对于老字号非遗的认识应该运用历时性与共时性的方法,重视其自然和谐与实用理性的基本特征。老字号非遗技艺的制作理念反映出不违物性、崇尚自然的特点,老字号非遗技艺制作过程中具有自然选材、环境友好等原则。 相似文献