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41.
《Food Policy》2019
In public and academic debates, the linkages between agricultural markets and nutrition across the world are vividly discussed. This paper contributes to the ongoing debate by analyzing the relationship between greater openness to trade and dietary diversity. It focuses on the post-communist countries of Eastern Europe and Central Asia where trade reforms triggered growth in trade flows and foreign direct investment, which in turn affected food systems in these countries. This shift provides a natural experiment for studying the effects of trade openness on agricultural markets and consumer behaviour. Reduction in trade barriers, for instance in the context of the accession to the WTO and the EU, and the gradual integration with world markets after 1991 had implications for diets through changes in production, prices and incomes. We utilize country-level panel data for 26 post-communist countries in the period 1996–2013 to assess the effects of trade costs, agricultural trade openness and incomes on dietary diversity measured by the Shannon entropy index. The results from fixed effects and instrumental variables estimation are consistent with previous findings that income growth affects dietary diversity positively. They also provide novel evidence that trade barriers reduce variety of products available in domestic markets, in particular fruits and vegetables. 相似文献
42.
佟代泉 《内蒙古财经学院学报(综合版)》2011,9(3):14-18
本文运用文化人类学的研究方法,对影响民族学生学业质量的文化因素进行了深入的研究分析,在此基础上,以文化冲突等相关理论为依据,着重从文化的角度分析影响民族学生学业质量的语言差异因素,并进行理论解释和探讨,提出相关的对策建议。 相似文献
43.
微生物强化采油技术研究现状及应用前景 总被引:1,自引:0,他引:1
介绍了微生物强化采油技术的基本概念、机理和发展现状,讨论了该技术的研究方法、优点及应用条件,并展望了微生物强化采油技术的应用前景。 相似文献
44.
《International Journal of Research in Marketing》2022,39(3):745-763
The concept of consumer ethnocentrism was introduced more than 30 years ago, and since then it has received keen interest among academic researchers. However, empirical evidence in published studies has been inconclusive and many macro-drivers of consumer ethnocentrism received cursory attention. This study meta-analyses 240 studies from 57 countries and tries to understand the key drivers of consumer ethnocentrism. The results indicate that consumer ethnocentrism is a universal phenomenon and is driven by culture and the interaction of economic and ethnic diversity variables. Challenging popular beliefs, the findings suggest that neither globalization nor economic threats are unconditional drivers of consumer ethnocentrism. Their effects are conditional on cultural values and economic situation. Results provide evidence that multi-ethnic societies tend to be more consumer ethnocentric when the culture of a country is not strong in egalitarianism. Finally, the paper presents evidence that consumer ethnocentrism affects the imports of consumer goods in a country. 相似文献
45.
The impact of recommendation systems (RSs) on the diversity of consumption is not transparent or well understood. Available studies, whether experimental or theoretical, show inconsistent and even opposite results, which manifests as debate in the literature. In this paper, we investigate the impact of two main recommender systems, neural collaborative filtering and deep content filtering, on sales diversity via a randomized field experiment. Our results confirm the capability of recommender engines in increasing or decreasing aggregate sales diversity. Nonetheless, they amplify homogenization and reduce individual-level consumption diversity. In conclusion, our research reconciles seemingly contradict previous findings and illustrates that the design of the RS is the decisive factor in homogenizing or diversifying product sales. 相似文献
46.
2020年签署的RCEP是全球规模最大的自由贸易协定,其成员国的要素差异和产品多样性将在一定程度上推进贸易发展。本文利用生物多样性的概念计算2000-2019年RCEP成员国的产品多样性,并建立多元回归模型研究产品多样性对出口贸易的影响。结果表明:产品多样性对出口额有着负向抑制作用,这种抑制作用在非东盟国家更为显著。进一步的分析表明,由于各国专业于生产某类产品,导致产品多样性下降,但专业化又推动出口贸易的发展,从而使两者负相关。基于此,本文提出了创新贸易方式,打造对外贸易新高地,推动产业链价值链合作等促进RCEP成员国贸易发展的对策建议。 相似文献
47.
Hilla Peretz Ariel Levi Yitzhak Fried 《International Journal of Human Resource Management》2015,26(6):875-903
This study examined data from over 5000 organizations in 22 countries to address three complementary issues: (1) the influence of national culture on the adoption of diversity programs aimed at recruiting, training and promoting individuals from specific target groups; (2) the moderating effect of national cultural practices on the relationship between these diversity programs and the organizational outcomes of absenteeism and turnover; and (3) the mediating effect of absenteeism and turnover on the relationship between diversity programs and organizational performance and innovation. National cultural values and practices were taken from the GLOBE study and assigned respectively to the organizations in our sample. A multilevel path analysis supported the hypothesized effects of national cultural values on organizational diversity programs. Moreover, cultural practices were found to moderate the relationship between diversity programs and absenteeism and turnover. Our hypotheses on the role of absenteeism and turnover as mediators of the relationship between diversity programs and organizational performance and innovation were also supported. Our findings may help guide managers' decisions on the adoption of diversity programs in units operating in different national cultures. We discuss the implications of our findings for scholars and practitioners concerned with diversity management issues in a global context. 相似文献
48.
全球化是一个历史范畴,是世界各国各地区的经济、政治、文化等领域超越国界、扩大联系的历史进程和历史趋势。全球化加速了强势文化的扩张和弱势文化的萎缩,各种文化在融合的过程中趋同,全球化不断吞噬文化多元性。因此从对全球化、文化、文化的多样性及民族文化的概念界定,探析全球化对民族文化的影响及冲击。 相似文献
49.
我国加入WTO以后,对于上海的发展是一个千栽难逢的机遇,同时也给上海的发展带来新的挑战。本文通过详实的资料分析了上海经济发展的现状和制约上海进一步发展的问题,并运用市场营销新理论,提出构建上海现代化大都市的营销战略。 相似文献
50.
隐形冠军企业在成立初期依靠准确的市场定位和高度专业化在某一细分市场中占有绝对的领导地位。但随着市场透明度的提高,产品生命周期的缩短,隐形冠军面临愈发激烈的竞争,其发展空间受到压制。依据"安索夫矩阵"中企业多元化发展战略,隐形冠军只有培养自身核心能力,执行行业跨度小的相关多元化战略,开发市场前景广阔的产品,才能实现成功突围。 相似文献