Fixed-term contracts – a turnoff for R&D employees

  • Aaro Hazak


Fixed-term employment contracts are very common in the current project-based era. Our research group has been seeking to find out how fixed versus permanent contracts link to how Estonian R&D employee perceive their wellbeing, tiredness and sleepiness. We found that the happiness of those working with fixed-term contracts is significantly lower – both in terms of current happiness and potential happiness looking forward. Moreover, employees with fixed-term contracts appeared to be considerably more tired and experience greater levels of daytime sleepiness. We did not find, however, any significant differences in the perceived work results of R&D employees with fixed-term contracts compared to those with permanent contracts. Employers as well as R&D governance bodies should keep in mind the adverse effects that fixed-term contracts may have on individual wellbeing.


Aronsson, G., Gustafsson, K., & Dallner, M. (2002). Work environment and health in different types of temporary jobs. European journal of work and organizational psychology, 11(2), 151-175.

Benavides, F. G., Benach, J., Diez-Roux, A. V., & Roman, C. (2000). How do types of employment relate to health indicators? Findings from the Second European Survey on Working Conditions. Journal of Epidemiology & Community Health, 54(7), 494-501.

Burchell, B., Ladipo, D., & Wilkinson, F. (Eds.). (2005). Job insecurity and work intensification. Routledge.

Ferrie, J. E., Shipley, M. J., Marmot, M. G., Martikainen, P., Stansfeld, S. A., & Smith, G. D. (2001). Job insecurity in white-collar workers: Toward an explanation of association with health. Journal of Occupational Health Psychology, 6(1), 26.

Hazak, A., Männasoo, K., Virkebau, M. (2017). Effects of work arrangements on creative R&D work outcomes. Eastern European Economics. Forthcoming.

Joyce, K., Pabayo, R., Critchley, J. A., & Bambra, C. (2009). Flexible working conditions and their effects on employee health and wellbeing. Cochrane Database Syst Rev, 2.

Krause, A. (2014). Happiness and Work (No. 8435). IZA Discussion Papers.

Niimi, Y. (2016). What Affects Happiness Inequality? Evidence from Japan. Journal of Happiness Studies, 1-23.

Nätti, J. (1993). Temporary Employment in the Nordic Countries: A ‘Trap’ or a ‘Bridge’?. Work, employment and society, 7(3), 451-464.

O'Reilly, J., & Schmid, G. (1999). The future of welfare and work in Germany and the UK: Prospects for transitional labour markets. Social Policy Review, 11, 264-285.

Rodriguez, E. (2002). Marginal employment and health in Britain and Germany: does unstable employment predict health?. Social science & medicine, 55(6), 963-979.

Virtanen, M., Kivimäki, M., Joensuu, M., Virtanen, P., Elovainio, M., & Vahtera, J. (2005). Temporary employment and health: a review. International journal of epidemiology, 34(3), 610-622.
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