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The Ethnic Diversity and Collective Action Survey (EDCAS): Technical report


  • Schaeffer, Merlin
  • Koopmans, Ruud
  • Veit, Susanne
  • Wagner, Mareike
  • Wiedner, Jonas


The EDCA-Survey is a large scale CATI telephone survey conducted in three countries: Germany, France and the Netherlands. The survey was designed to test theoretical arguments on the effects of ethnic diversity on social capital and civic engagement. This aim demands for a sophisticated design. The survey is not representative for the entire populations of Germany, France or the Netherlands. Instead, the basic population is the population over the age of 18 in 74 selected regions in Germany, France and the Netherlands that have sufficient language skills to conduct an interview in the language of their country of residence, or in the case of the oversample of people with Turkish migration background to conduct the interview in Turkish. The aim of the survey is to enable the comparison of these 74 regions, which vary on contextual characteristics of interest. In addition, the EDCA-Survey includes one oversample of migrants in general (24%) and an additional second oversample of Turkish migrants in particular (14%). The oversampling is the same within each of the 74 regions, each of which has about 100 observations and seven specially chosen cities even 500. This survey design is an important characteristic of the EDCA-Survey and distinguishes it from other available data. This is important since one aim of the EDCA-Survey is to enable the aggregation of contextual characteristics from the survey itself. Overall, 10.200 completed interviews were conducted - 7500 in Germany, 1400 in France and 1300 in the Netherlands.

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  • Schaeffer, Merlin & Koopmans, Ruud & Veit, Susanne & Wagner, Mareike & Wiedner, Jonas, 2011. "The Ethnic Diversity and Collective Action Survey (EDCAS): Technical report," Discussion Papers, Research Unit: Migration, Integration, Transnationalization SP IV 2011-701, Social Science Research Center Berlin (WZB).
  • Handle: RePEc:zbw:wzbmit:spiv2011701

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    1. repec:cup:apsrev:v:101:y:2007:i:04:p:709-725_07 is not listed on IDEAS
    2. Michael Naef & Jürgen Schupp, 2009. "Measuring Trust: Experiments and Surveys in Contrast and Combination," SOEPpapers on Multidisciplinary Panel Data Research 167, DIW Berlin, The German Socio-Economic Panel (SOEP).
    3. Habyarimana, James P. & Humphreys, Macartan & Posner, Daniel N. & Weinstein, Jeremy, 2006. "Why Does Ethnic Diversity Undermine Public Goods Provision? An Experimental Approach," IZA Discussion Papers 2272, Institute for the Study of Labor (IZA).
    4. Zheng, Tian & Salganik, Matthew J. & Gelman, Andrew, 2006. "How Many People Do You Know in Prison?: Using Overdispersion in Count Data to Estimate Social Structure in Networks," Journal of the American Statistical Association, American Statistical Association, vol. 101, pages 409-423, June.
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