Photograph of Alvaro Martinez-PerezDr Alvaro Martinez-Perez

Lecturer in International and Comparative Social Research Methods

PhD (ISER, University of Essex), MA (IC3JM), BA (Hons) (UCM)

Telephone: 0114 222 6489 (external), 26489 (internal)
Room: Elmfield, G40


Alvaro joined the department in September 2015 having previously worked in research positions for the Faculty of Social Sciences and the Management School in the University. Prior to coming to the University of Sheffield, he  worked as Postdoctoral Fellow (research and teaching) at the Department of Sociology of the Universitat de Barcelona between 2011 and 2012 and as Research Fellow at the Research Institute for the Evaluation of Public Policies (IRVAPP, Fondazione Bruno Kessler) in Trento between 2009 and 2011.

He has extensive experience of working in international, interdisciplinary teams and advising policy makers (Department for Business, Innovation and Skills and the Regional Government of the Province of Trento).


Alvaro's current research interests are:

  • Social stratification and inequality;
  • Labour markets;
  • Education;
  • Family and gender;
  • Migration;
  • Electoral behaviour;
  • Advanced multivariate methods (such as panel regression, event history analysis, multilevel analysis, multiple imputation).

Alvaro has a strong methodological focus centred in a wide range of quantitative methods used across the social sciences (sociology, political sciences and economics). For instance, in his PhD Alvaro investigated the impact of educational homogamy in the patterns and evolution of gender inequalities in couple relationships over the course of marriage using panel methods, simultaneous equation modelling and event history analysis.


Alvaro currently delivers teaching on:

  • SSCS2002 Varieties of Welfare (Level 2)
  • SCS2000 Doing Quantitative Social Research (Level 2)
  • SCS2007 Social Policy in Global Context (Level 2)

He has taught and supervised students at both undergraduate and post-graduate levels. Alvaro's approach to teaching is evidence- based seeking to establish linkages between his research and teaching and also using his experience on policy impact working with policy makers. He tries to make students aware that through doing research in social sciences, while keeping a critical view on how our society works, we can make a significant contribution to the understanding and improvement of key societal challenges.

Postgraduate supervision

Alvaro has co-supervised several dissertations at PhD level. He is particularly interested in supervising students who undertake quantitative work in his substantive areas of interest. Alvaro has a broad range of experience with primary data collection, secondary data analysis and advanced statistical methods.

To find out more about our PhD programmes, go to:
Studying for a PhD in Sociology


Publications since 2010

Williams, C. C., Martinez-Perez, A. & M.Kedir, A. (2016). Informal entrepreneurship in developing economies: the impacts of starting-up unregistered on firm performance. Entrepreneurship Theory and Practice. doi: 10.1504/IJBG.2016.076845

Williams, C. C. & Martinez-Perez, A. (2016). Evaluating the impacts of corruption on firm performance in developing economies: an institutional perspective. International Journal of Business and Globalisation, 16(4), 401-422. doi:10.1504/IJBG.2016.076845

Williams, C., Martinez-Perez, A. & Kedir, A. M. (2016). Does bribery have a negative impact on firm performance? a firm-level analysis across 132 developing countries. International Journal of Entrepreneurial Behavior & Research, 22(3), 398-415. doi:10.1108/IJEBR-01-2016-0002

Martinez-Perez, A. (2016). Can Work-Life Balance Policies Foster Happiness within the Family? A Comparison of New versus Old Family Arrangements. In In T. Tachibanaki (Ed.), Advances in Happiness Research. A Comparative Perspective (1 ed., pp. 275-296). Springer. doi:10.1007/978-4-431-55753-1_15

Martinez-Perez, A. & Williams, C. (2016). Tackling the informal economy: a critical evaluation of the neo-liberal policy de-regulatory perspective. In S. Routh, & V. Borghi (Eds.), Workers and the Global Informal Economy. Interdisciplinary Perspectives (1 ed., pp. 29-50). Oxford and New York: Routledge.

Williams, C. C., Shahid, M. & Martinez-Perez, A. (2015). Determinants of the level of informality of informal micro-enterprises: some evidence from the city of Lahore, Pakistan. World Development. doi:10.1016/j.worlddev.2015.09.003

Martinez-Perez, A. & Mari-Klose, P. (2015). Empobrecimiento en tiempos de crisis: vulnerabilidad y (des)protección social en un contexto de adversidad. Panorama Social, 22(2), 11-26.

Williams, C. & Martinez-Perez, A. (2014) “Entrepreneurship in the informal economy: a product of too much or too little state intervention?”, International Journal of Entrepreneurship and Innovation, Vol. 15(4): 227-237

Williams, C. & Martinez-Perez, A. (2014) “Evaluating the cash-in-hand consumer culture in the European Union”, Journal of Contemporary European Studies, Vol. 22(4): 466-482

Williams, C. & Martinez-Perez, A. (2014) “Explaining cross-national variations in tax morality in the European Union: an exploratory analysis”, Studies of Transition States and Societies, Vol. 6(1): 5-18

Williams, C. & Martinez-Perez, A. (2014) “Do small business start-ups test-trade in the informal economy? evidence from a UK survey”, International Journal of Entrepreneurship and Small Business, Vol. 22(1): 1-16

Martinez-Perez, A. & Orriols, L. (2014) “The role of the political context in voting indecision”, Electoral Studies, Vol. 35(1): 12-23

Martinez, A., de la Calle, L. & Orriols, L. (2010). Voting without Ideology. Evidence from Spain (1979-2008). Revista Espanola de Investigaciones Sociologicas, 129(1), 107-129.

Martinez, A., & Calvo, K. (2010). Un análisis del efecto de la Ley de igualdad en la representación electoral, parlamentaria y el comportamiento electoral de las mujeres en las elecciones generales de 2008 (Vol. 48/2010). Madrid: Fundacion Alternativas.

Martinez, A., Calvo, K. & Montero, J. R. (2010). Devotos y votantes: el peso del factor religioso en las elecciones generales españolas. In J. R. M. E. I. L. eds (Ed.), Elecciones Generales 2008 (pp. 519 pages). Madrid: Cis.

Williams, C. C. & Martinez-Perez, A. (2014). Why do consumers purchase goods and services in the informal economy?. Journal of Business Research, 67(5), 802-806. doi:10.1016/j.jbusres.2013.11.048

Williams, C. & Martinez, A. (2014). Is the informal economy an incubator for new enterprise creation? A gender perspective. International Journal of Entrepreneurial Behaviour and Research, 20(1), 4-19. doi:10.1108/IJEBR-05-2013-0075