This map shows the geographic impact of Sonja Opper'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 Sonja Opper with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sonja Opper more than expected).
This network shows the impact of papers produced by Sonja Opper. 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 Sonja Opper. The network helps show where Sonja Opper may publish in the future.
Co-authorship network of co-authors of Sonja Opper
This figure shows the co-authorship network connecting the top 25 collaborators of Sonja Opper.
A scholar is included among the top collaborators of Sonja Opper 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 Sonja Opper. Sonja Opper is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Nee, Victor & Sonja Opper. (2012). Capitalism from Below: Markets and Institutional Change in China. RePEc: Research Papers in Economics.4 indexed citations
9.
Nee, Victor & Sonja Opper. (2012). Capitalism from Below. Harvard University Press eBooks.242 indexed citations
Opper, Sonja, et al.. (2008). Institutional Analysis of Legal Change: The Case of Corporate Governance in China. Open Scholarship Institutional Repository (Washington University in St. Louis).5 indexed citations
15.
Opper, Sonja & Stefan Brehm. (2007). Economic Performance and Networks: Political Careers in China’s M-Form State. Lund University Publications (Lund University).4 indexed citations
16.
Opper, Sonja. (2004). Zwischen Political Governance und Corporate Governance : eine institutionelle Analyse chinesischer Aktiengesellschaften. Lund University Publications (Lund University).2 indexed citations
17.
Wong, Sonia M.L., et al.. (2004). Shareholding Structure, Depoliticization and Firm Performance. SSRN Electronic Journal.1 indexed citations
18.
Opper, Sonja. (2004). The Political Economy of Privatization: Empirical Evidence from Transition Economies. SSRN Electronic Journal.2 indexed citations
Opper, Sonja & Sonia M.L. Wong. (2002). Party Power, Market and Private Power: CCP Persistence in China´s Listed Companies. Research in Social Stratification and Mobility. 19. 103–136.10 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.