| 来源类型 | Discussion paper |
| 规范类型 | 论文 |
| 来源ID | DP8716 |
| DP8716 Sub-field normalization in the multiplicative case: High- and low-impact citation indicators | |
| Javier Ruiz-Castillo; Neus Herranz | |
| 发表日期 | 2011-12-01 |
| 出版年 | 2011 |
| 语种 | 英语 |
| 摘要 | This paper uses high- and low-impact citation indicators for the evaluation of the citation performance of research units at different aggregate levels. To solve the problem of the assignment of individual articles to multiple sub-fields, it follows a multiplicative strategy according to which each paper is wholly counted as many times as necessary in the several categories to which it is assigned at each aggregation level. To control for wide differences in citation practices at the lowest level of aggregation, we apply a novel sub-field normalization procedure in the multiplicative case. The methodology is applied to a partition of the world into three geographical areas: the U.S., the European Union (EU), and the Rest of the World. The main findings are the following two. (i) Although normalization does not systematically bias the results against any area at lower aggregate levels, it reduces the U.S./EU high-impact gap in the all-sciences case by a non-negligible 14.4%. (ii) The dominance of the U.S. over the EU in the basic and applied research published in the periodical literature is almost universal at all aggregation levels. From the high-impact perspective, for example, the U.S. is ahead of the EU in 77 out of 80 disciplines, and all of 20 fields. For all sciences as a whole, the U.S. high-impact indicator is 61% greater than that of the EU. |
| 主题 | Industrial Organization |
| 关键词 | Citation analysis Web of science categories Journal classification Research performance Subfield normalization European paradox High- and low-impact indicators |
| URL | https://cepr.org/publications/dp8716 |
| 来源智库 | Centre for Economic Policy Research (United Kingdom) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/537551 |
| 推荐引用方式 GB/T 7714 | Javier Ruiz-Castillo,Neus Herranz. DP8716 Sub-field normalization in the multiplicative case: High- and low-impact citation indicators. 2011. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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