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Paper tiger? Chinese science and home bias in citations

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  • Pierre Azoulay
  • Shumin Qiu
  • Claudia Steinwender

Abstract

We investigate the phenomenon of home bias in scientific citations, where researchers disproportionately cite work from their own country. We develop a benchmark for expected citations based on the relative size of countries, defining home bias as deviations from this norm. Our findings reveal that China exhibits the largest home bias across all major countries and in nearly all scientific fields studied. This stands in contrast to the pattern of home bias for China's trade in goods and services, where China does not stand out from most industrialized countries. After adjusting citation counts for home bias, we demonstrate that China's apparent rise in citation rankings is overstated. Our adjusted ranking places China fourth globally, behind the US, the UK, and Germany, tempering the perception of China's scientific dominance.

Suggested Citation

  • Pierre Azoulay & Shumin Qiu & Claudia Steinwender, 2025. "Paper tiger? Chinese science and home bias in citations," CEP Discussion Papers dp2072, Centre for Economic Performance, LSE.
    • Handle: RePEc:cep:cepdps:dp2072
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    2. Yang, Xiaoliang & Zhou, Peng, 2025. "Unveiling citation bias in economics: Taste-based discrimination against Chinese-authored papers," Labour Economics, Elsevier, vol. 94(C).

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    JEL classification:

    • I23 - Health, Education, and Welfare - - Education - - - Higher Education; Research Institutions
    • O30 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - General
    • O53 - Economic Development, Innovation, Technological Change, and Growth - - Economywide Country Studies - - - Asia including Middle East

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