This map shows the geographic impact of Achim Koch's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Achim Koch with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Achim Koch more than expected).
This network shows the impact of papers produced by Achim Koch. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Achim Koch. The network helps show where Achim Koch may publish in the future.
Co-authorship network of co-authors of Achim Koch
This figure shows the co-authorship network connecting the top 25 collaborators of Achim Koch.
A scholar is included among the top collaborators of Achim Koch based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Achim Koch. Achim Koch is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Eckman, Stephanie & Achim Koch. (2018). The relationship between response rates, sampling method and selection bias: Evidence from the European Social Survey.
Koch, Achim, et al.. (2015). Nonresponse Bias (GESIS Survey Guidelines). Social Science Open Access Repository (GESIS – Leibniz Institute for the Social Sciences). 10.2 indexed citations
9.
Koch, Achim, et al.. (2012). Field Procedures in the European Social Survey Round 5: Enhancing Response Rates.6 indexed citations
Billiet, Jaak, et al.. (2010). Paradata in the European Social Survey: Studying Nonresponse and Adjusting for Bias. Lirias (KU Leuven). 407–421.12 indexed citations
12.
Koch, Achim, et al.. (2009). Item Non-response in the European Social Survey. The Knowledge Bank (The Ohio State University).3 indexed citations
Smith, Tom, Jibum Kim, Achim Koch, & Alison Park. (2005). Social-science research and the general social surveys. UCL Discovery (University College London). 29(56). 68–77.9 indexed citations
15.
Koch, Achim. (1995). Gefälschte Interviews: Ergebnisse der Interviewerkontrolle beim ALLBUS 1994. Social Science Open Access Repository (GESIS – Leibniz Institute for the Social Sciences). 19(36). 89–105.16 indexed citations
16.
Koch, Achim, et al.. (1988). Die Non-Response-Studie zum ALLBUS 1986: Problemstellung, Design, erste Ergebnisse. Social Science Open Access Repository (GESIS – Leibniz Institute for the Social Sciences). 12(22). 29–44.4 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.