The misleading narrative of the canonical faculty productivity trajectory

Significance Scholarly productivity impacts nearly every aspect of a researcher’s career, from their initial placement as faculty to funding and tenure decisions. Historically, expectations for individuals rely on 60 years of research on aggregate trends, which suggest that productivity rises rapidly to an early-career peak and then gradually declines. Here we show, using comprehensive data on the publication and employment histories of an entire field of research, that the canonical narrative of “rapid rise, gradual decline” describes only about one-fifth of individual faculty, and the remaining four-fifths exhibit a rich diversity of productivity patterns. This suggests existing models and expectations for faculty productivity require revision, as they capture only one of many ways to have a successful career in science. A scientist may publish tens or hundreds of papers over a career, but these contributions are not evenly spaced in time. Sixty years of studies on career productivity patterns in a variety of fields suggest an intuitive and universal pattern: Productivity tends to rise rapidly to an early peak and then gradually declines. Here, we test the universality of this conventional narrative by analyzing the structures of individual faculty productivity time series, constructed from over 200,000 publications and matched with hiring data for 2,453 tenure-track faculty in all 205 PhD-granting computer science departments in the United States and Canada. Unlike prior studies, which considered only some faculty or some institutions, or lacked common career reference points, here we combine a large bibliographic dataset with comprehensive information on career transitions that covers an entire field of study. We show that the conventional narrative confidently describes only one-fifth of faculty, regardless of department prestige or researcher gender, and the remaining four-fifths of faculty exhibit a rich diversity of productivity patterns. To explain this diversity, we introduce a simple model of productivity trajectories and explore correlations between its parameters and researcher covariates, showing that departmental prestige predicts overall individual productivity and the timing of the transition from first- to last-author publications. These results demonstrate the unpredictability of productivity over time and open the door for new efforts to understand how environmental and individual factors shape scientific productivity.

[1]  M. F. Fox Gender, Family Characteristics, and Publication Productivity among Scientists , 2005 .

[2]  J. P. Rushton,et al.  Relation between aging and research productivity of academic psychologists. , 1986, Psychology and aging.

[3]  S. Grossberg,et al.  Psychological Review , 2003 .

[4]  魏屹东,et al.  Scientometrics , 2018, Encyclopedia of Big Data.

[5]  J. Pierce The Proceedings of the IRE , 1954, Proceedings of the IRE.

[6]  Neil J. Gemmell,et al.  Gender Differences in Publication Output: Towards an Unbiased Metric of Research Performance , 2006, PloS one.

[7]  L. Amaral,et al.  The role of mentorship in protégé performance , 2010, Nature.

[8]  A. Link,et al.  A Time Allocation Study of University Faculty. , 2008 .

[9]  Jonathan R. Cole,et al.  Fair Science: Women in the Scientific Community. , 1982 .

[10]  Eric L. Dey,et al.  Changing Patterns of Publication Productivity: Accumulative Advantage or Institutional Isomorphism?. , 1997 .

[11]  J. S. Long,et al.  DEPARTMENTAL EFFECTS ON SCIENTIFIC PRODUCTIVITY , 1990 .

[12]  James A. Hendler,et al.  Proceedings of the 25th International Conference on World Wide Web , 2016, WWW.

[13]  Roberto Cordone,et al.  Instabilities in Creative Professions: A Minimal Model , 2000 .

[14]  Michael Hemmingson A Sociological Inquiry , 2009 .

[15]  Jonathan R. Cole,et al.  Fair Science: Women in the Scientific Community , 1987 .

[16]  Harriet Zuckerman,et al.  Stratification in American Science , 1970 .

[17]  GILAH LANGNER,et al.  Journal of the Washington Academy of Sciences , 2012 .

[18]  A. Scott,et al.  Ann Arbor , 1980 .

[19]  A. Quételet Sur L'homme Et Le Développement De Ses Facultés Ou Essai De Physique Sociale , 2010 .

[20]  Peder Olesen Larsen,et al.  The rate of growth in scientific publication and the decline in coverage provided by Science Citation Index , 2010, Scientometrics.

[21]  R. BRIGHTMAN,et al.  Science Advances , 1948, Nature.

[22]  Donald C. Pelz,et al.  Scientists in Organizations: Productive Climates for Research and Development , 1967 .

[23]  Barbara F. Reskin,et al.  Academic Sponsorship and Scientists' Careers. , 1979 .

[24]  D. Crane Scientists at major and minor universities: a study of productivity and recognition. , 1965, American sociological review.

[25]  William F. Massy,et al.  Improving Productivity: What Faculty Think About It—And It's Effect on Quality , 1995 .

[26]  J. S. Long,et al.  Productivity and Academic Position in the Scientific Career , 1978 .

[27]  Donald C. Pelz,et al.  Scientists in Organizations: Productive Climates for Research and Development. , 1968 .

[28]  Paula E. Stephan The Economics of Science , 1996 .

[29]  Stephen Cole,et al.  Age and Scientific Performance , 1979, American Journal of Sociology.

[30]  L. Christophorou Science , 2018, Emerging Dynamics: Science, Energy, Society and Values.

[31]  Journal of Gerontology , 1946 .

[32]  Dean Keith Simonton,et al.  Creative productivity: A predictive and explanatory model of career trajectories and landmarks. , 1997 .

[33]  J. S. Long,et al.  Measures of Sex Differences in Scientific Productivity , 1992 .

[34]  N. MacDonald Nonlinear dynamics , 1980, Nature.

[35]  Alan L. Porter,et al.  Career Patterns of Scientists: A Case for Complementary Data , 1981 .

[36]  W. Dennis,et al.  Age and productivity among scientists. , 1956, Science.

[37]  Alan E. Bayer,et al.  Career Age and Research-Professional Activities of Academic Scientists. Tests of Alternative Nonlinear Models and Some Implications for Higher Education Faculty Policies. , 1977 .

[38]  Paula E. Stephan,et al.  Gender and the Publication Output of Graduate Students: A Case Study , 2016, PloS one.

[39]  Erp,et al.  SOCIOLOGY OF EDUCATION , 2017 .

[40]  「大学教育」編集委員会 Journal of Higher Education , 1975 .

[41]  F. A. Hayek The American Economic Review , 2007 .

[42]  William Shockley,et al.  On the Statistics of Individual Variations of Productivity in Research Laboratories , 1957, Proceedings of the IRE.

[43]  P. Allison,et al.  Entrance into the Academic Career , 1979 .

[44]  Kim Hill,et al.  A theory of human life history evolution: Diet, intelligence, and longevity , 2000 .

[45]  Daniel B. Larremore,et al.  Systematic inequality and hierarchy in faculty hiring networks , 2015, Science Advances.

[46]  Yu Xie,et al.  Sex differences in research productivity : New evidence about an old puzzle , 1998 .

[47]  VoLUME Xxxix,et al.  THE AMERICAN JOURNAL OF SOCIOLOGY , 2010 .

[48]  Tasneem Hameed,et al.  Change. , 2018, The Journal of the Oklahoma State Medical Association.

[49]  Daniel B. Larremore,et al.  Gender, Productivity, and Prestige in Computer Science Faculty Hiring Networks , 2016, WWW.

[50]  B. Reskin,et al.  Scientific Productivity, Sex, and Location in the Institution of Science , 1978, American Journal of Sociology.

[51]  Filippo Radicchi,et al.  The Possible Role of Resource Requirements and Academic Career-Choice Risk on Gender Differences in Publication Rate and Impact , 2012, PloS one.

[52]  Paula E. Stephan,et al.  Research Productivity over the Life Cycle: Evidence for Academic Scientists , 1991 .

[53]  Theodore Caplow,et al.  The Academic Marketplace , 1959 .

[54]  M. F. Fox Publication Productivity among Scientists: A Critical Review , 1983 .

[55]  A. Barabasi,et al.  Quantifying the evolution of individual scientific impact , 2016, Science.

[56]  J. R. Cole,et al.  Scientific output and recognition: a study in the operation of the reward system in science. , 1967, American sociological review.

[57]  Alfred J. Lotka,et al.  The frequency distribution of scientific productivity , 1926 .

[58]  A. Diamond,et al.  The life-cycle research productivity of mathematicians and scientists. , 1986, Journal of gerontology.

[59]  平澤 Social Studies of Science : 抄録雑誌の概要 , 1987 .

[60]  M. E. J. Newman,et al.  The first-mover advantage in scientific publication , 2008, 0809.0522.

[61]  Filippo Radicchi,et al.  Differences in Collaboration Patterns across Discipline, Career Stage, and Gender , 2016, PLoS biology.