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雷达卡
英文文献：Crime and Social Media-犯罪与社交媒体
英文文献作者：Simplice A. Asongu,Jacinta C. Nwachukwu,Stella-Maris I. Orim,Chris Pyke
英文文献摘要：
Purpose-The study complements the scant macroeconomic literature on the development outcomes of social media by examining the relationship between Facebook penetration and violent crime levels in a cross-section of 148 countries for the year 2012. Design/methodology/approach-The empirical evidence is based on Ordinary Least Squares (OLS), Tobit and Quantile regressions. In order to respond to policy concerns on the limited evidence on the consequences of social media in developing countries, the dataset is disaggregated into regions and income levels. The decomposition by income levels included: low income, lower middle income, upper middle income and high income. The corresponding regions include: Europe and Central Asia, East Asia and the Pacific, Middle East and North Africa, Sub-Saharan Africa and Latin America. Findings-From OLS and Tobit regressions, there is a negative relationship between Facebook penetration and crime. However, Quantile regressions reveal that the established negative relationship is noticeable exclusively in the 90th crime quantile. Further, when the dataset is decomposed into regions and income levels, the negative relationship is evident in the Middle East and North Africa (MENA) while a positive relationship is confirmed for sub-Saharan Africa. Policy implications are discussed. Originality/value- Studies on the development outcomes of social media are sparse because of a lack of reliable macroeconomic data on social media. This study primarily complemented five existing studies that have leveraged on a newly available dataset on Facebook.
目的——该研究通过研究2012年148个国家的Facebook渗透率和暴力犯罪水平之间的关系，补充了关于社交媒体发展结果的宏观经济学文献。设计/方法/方法——经验证据基于普通最小二乘(OLS)、Tobit和分位数回归。为了回应有关发展中国家社会媒体后果的有限证据的政策关切，数据集被按地区和收入水平分类。按收入水平分解为:低收入、中低收入、中低收入和高收入。相应的区域包括:欧洲与中亚、东亚与太平洋、中东与北非、撒哈拉以南非洲和拉丁美洲。从OLS和Tobit回归中发现，Facebook渗透率和犯罪率呈负相关。然而，分位数回归表明，所建立的消极关系只在第90个犯罪分位数中显著。此外，当将数据集分解为区域和收入水平时，在中东和北非(MENA)明显存在负相关关系，而在撒哈拉以南非洲则证实存在正相关关系。讨论了政策含义。创意/价值——由于缺乏可靠的社交媒体宏观经济数据，对社交媒体发展成果的研究十分稀少。这项研究主要补充了五个已有的研究，这些研究利用了Facebook上最新的数据集。
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