IE0216C
Migrations between Africa and Europe - MAFE Ghana (2009-2010)
Migrations entre l'Afrique et l'Europe - MAFE Ghana (2009-2010)
| Nom | Code pays |
|---|---|
| Ghana | GH |
| Netherlands | NL |
| United Kingdom | GB |
Migrations between Africa and Europe (MAFE) (2008 – 2010)
The MAFE project is a large-scale initiative whishing to study migrations between sub-Saharan Africa and Europe.
The MAFE project has produced multi-site, comparative and longitudinal surveys in three African countries (Senegal, Congo, Ghana) and six European countries (Belgium, France, Italy, Netherlands, Spain, UK). It provides a unique source of data that allows researchers to study the trends, causes and consequences of African migrations. The data collected in African countries can also be used to study other socio-demographic phenomena (family formation, fertility, socio-economic trajectories, etc.).
Because migrations are not solely determined by the individual and family levels, the MAFE project also collected data at the national level. These data are gathered in a contextual database which consists of about 100 indicators covering the 9 MAFE countries in areas such as demography, economy, unemployment, education, political context.
Le projet de recherche MAFE est une initiative de grande ampleur dont l'objectif est d'étudier les migrations entre l'Afrique subsaharienne et l'Europe. - Attention, la documentation des enquêtes MAFE est en langue anglaise. -
The MAFE project is a major research initiative focused on migration between Sub-Saharan Africa and Europe. It brings together ten European and African research centres working on international migration.
In the early XXIth Century, international migration from Sub-Saharan Africa to Europe has generated increasing public and policy attention. The flotilla of boats bringing would-be migrants to the Canary Islands, and attempts to reach Spanish territory in Ceuta and Mellila have drawn a rapid response from Europe in the form of new policy measures. Yet the scope, nature and likely development of Sub-Saharan African migration to Europe remained poorly understood, and, as a result, European polices may be ineffective. A major cause of this lack of understanding was the absence of comprehensive data on the causes of migration and circulation between Africa and Europe.
The MAFE project aimed at overcoming this lack of understanding by collecting unique data on the characteristics and behavior of migrants from Sub-Saharan countries to Europe. The key notion underpinning the project was that migration must not only be seen as a one-way flow from Africa to Europe. The argument was that return migration, circulation and transnational practices are significant and must be understood in order to design better migration policy.
The MAFE project focused on migration flows between Europe (Belgium, France, Italy, the Netherlands, Spain and the UK) and Senegal, the Democratic Republic of Congo and Ghana, which together accounted for over a quarter of all African migration to the EU at the time of the survey. In each of these "migration systems", the survey was designed to document four key areas:
Please consult the official MAFE website for further details : https://mafeproject.site.ined.fr/en/
survey data
Individual Household
| Thème | Vocabulaire | URI |
|---|---|---|
| World migrations, discrimination, integration | Ined | https://www.ined.fr/fr/recherche/enquetes/enquetes-ined/#theme-4 |
| Economic conditions and indicators | CESSDA Topic Classification | https://vocabularies.cessda.eu/vocabulary/TopicClassification |
| Cultural and national identity | CESSDA Topic Classification | https://vocabularies.cessda.eu/vocabulary/TopicClassification |
| Migration | CESSDA Topic Classification | https://vocabularies.cessda.eu/vocabulary/TopicClassification |
Six European countries and three African countries participated in the MAFE surveys. Data collection was carried out in both sending countries in Africa and destination countries in Europe, in order to constitute transnational samples.
For MAFE Ghana, data was collected in Ghana (African part), and the Netherlands and United Kingdom (European part).
GHANA
Household: Households selected randomly from the updated list of households in the selected primary sampling units. Three strata were distinguished: households with return migrants, with migrants abroad, and without migrants.
Individual: People aged 25-75, born in Ghana. This lower age limit was set in order to obtain informative life histories. By not including respondents younger than 25, the resources were used more effectively. The place of birth criterion was used to exclude people who were born out of their country of origin in order to exclude second generation migrants in Europe and to increase the homogeneity of sample.
All the return migrants and partners of migrants, and one randomly selected other eligible person. Return migrants were eligible if their first departure was above at 18 or over.
EUROPE
In all the European countries, the surveys were conducted among males and females who were aged 25 and over at the time of the surveys, and who were 18 or over when they had left Africa for the first time for at least one year. Migrants from only Ghana were interviewed.
| Nom | Affiliation |
|---|---|
| BEAUCHEMIN Cris | Ined |
| Nom |
|---|
| Institut national d'études démographiques |
| University of Ghana |
| Maastricht University |
| University of Sussex |
| Nom |
|---|
| Seventh Framework Programme (Septième programme-cadre) |
| Nom | Affiliation | Rôle |
|---|---|---|
| ADDOQUAYE TAGOE Cynthia | CMS | |
| AMETEPE Fofo | Ined | |
| AWUMBILA Mariama | CMS | |
| BINAISA Nalu | U. Sussex | |
| BLACK Richard | U. Sussex | Project coordinator |
| BRINGE Arnaud | Ined | |
| CAARLS Kim | U. Maastricht | |
| CASTALDO Adriana | U. Sussex | |
| DAURELE Catherine | Ined | Coordination assistant |
| FREMPONG Faustina | CMS | |
| GARBIN David | U. Sussex | |
| GENT Saskia | U. Sussex | |
| KABBANJI Lama | Ined | |
| LAURENT Raphaël | Ined | |
| LEJBOWICZ Tania | Ined | |
| LESSAULT David | Ined | |
| MANUH Takyiwaa | CMS | |
| MAZZUCATO Valentina | U. Maastricht | Project coordinator |
| MEZGER Cora | Ined | |
| NAPPA Jocelyn | Ined | |
| QUAGLIA Martine | Ined | |
| QUARTEY Peter | CMS | Project coordinator |
| RAZAFINDRATSIMA Nicolas | Ined | |
| SCHANS Djamila | U. Maastricht | |
| SWARD Jon | U. Sussex | |
| THEVENIN Marc | Ined | |
| TOMA Sorana | Ined | |
| VICKSTROM Erik | Ined | |
| VIVIER Géraldine | Ined |
Probability: Stratified
GHANA
A three-stage stratified random sample was used. At the first stage, primary sampling units (census district) were selected randomly with varying probabilities. At the second stage, households were selected randomly in each of the selected primary sampling units (PSUs). At the third stage, individuals were selected within the households.
a) Selection of primary sampling units (first stage)
For Ghana, the target areas were the cities of Accra and Kumasi. In each of the cities, a sampling frame of primary sampling units was prepared. In Senegal and Ghana, recent censuses were available and served as sampling frames at the first stage.
At the first stage, census enumeration areas were randomly selected. In Ghana, 80 enumeration areas were selected with a probability proportional to size. As no information was available for stratifying, the sample was not stratified in the first stage in Ghana.
b) Selection of households (second stage)
A listing operation was carried out in each of the selected survey sites to prepare the sampling frame of households. The listing consisted in enumerating all the households in the selected sites, and in identifying whether these households included migrants of not. In DR Congo and Ghana, three categories of households were distinguished (households with return migrants, with migrants abroad, and without migrants). 8 households were selected in each of the 3 strata (if less than 8 households were available in one or several strata, the remaining households were selected in the other stratum). The sampling rate was higher in strata of households with migrants, in order to get a sufficient sample of such households.
c) Selection of individuals (third stage)
In each of the selected households, one or several respondents were selected among the eligible people (people aged between 25 and 75, and born in the origin country). In DR Congo and Ghana, all the return migrants and partners of migrants currently abroad were selected. In addition, one other eligible member was randomly selected. A special tool had been designed so that the interviewers could randomly select the people during the fieldwork.
Two types of questionnaires were used in the departure countries: the household questionnaire and the individual life history questionnaire.
EUROPE
The objective of the survey was to obtain a sample 'as representative as possible' of the African populations (Congolese, Ghanaian, Senegalese) in the destination countries (150 individuals per origin and destination country). The way the sample was constituted may vary across countries, but some common principles were respected:
GHANA
For the household questionnaire, 1920 households were selected (1440 in Accra and 480 in Kumasi), only 1246 were successfully interviewed, including:
For the biographic questionnaire, 1 490 individuals were selected, only 1 243 were interviewed, including:
The overall response rate in Ghana is 54.1%.
EUROPE
417 Ghanaians migrants were successfully interviewed: 279 in the Netherlands and 138 in the United Kingdom.
GHANA
The computation of sampling weights relies on computing sampling probabilities at each stage. The product of sampling probabilities at each stage gives the overall sampling probability. Taking the inverse of the sampling probability gives the inflation factor. These factors are adjusted (trimming, adjusting for population size). They are normalized, so that their sum is equal to the sample size.
EUROPE
In the European countries, similar sample sizes were selected for males and females, resulting in an overrepresentation or underrepresentation in the MAFE samples. Similarly, older people were usually oversampled. For these reasons, post-stratification weights are computed to give each observation its proper weight and to match the samples as closely as possible to selected population characteristics.
In the MAFE data, all survey weights have been rescaled (normalized) so that the sum of weights corresponds to the sample sizes of households and individuals respectively while the mean of the weight variables equals one.
For further details about weights, please read the MAFE methodological note 6 entitled "Sampling and Computation Weights in the MAFE Surveys" (see related materials).
Structured questionnaire
The MAFE surveys rely on two different questionnaires: household and biographic. The questionnaires are almost entirely identical from one country to another. The few differences consist in:
| Début | Fin | Cycle |
|---|---|---|
| 2009-04 | 2009-07 | Netherlands survey - First phase |
| 2009-05 | 2009-05 | Ghana pilot survey |
| 2009-06 | 2009-11 | United Kingdom survey |
| 2009-07 | 2010-01 | Ghana (Accra & Kumasi) survey |
| 2009-11 | 2010-04 | Netherlands survey - Second phase |
Cross-section
GHANA
In Ghana, the preparation of data collection started in February 2009, and a pilot survey was organized in May 2009. The selection of survey sites and the listing of households in the sites were carried out in May 2009. Fieldwork started in July 2009 and lasted approximately 6 months (from July 2009 to January 2010). Several interviewers dropped out during data collection and could not be replaced, which contributed to lengthening the fieldwork. Editing and data coding were done in parallel with data collection, and were over by the end of January 2010. Data entry and data cleaning started in February 2010, and ended in March 2010.
EUROPE
In the Netherlands and United Kingdom, data collection was conducted in 2009-2010. Data collection lasted about five months in the UK and three months in the Netherlands. Editing was done along data collection. Data entry was done between October and December 2009 in the UK, and between June 2009 and September 2009 in the Netherlands. The Netherlands started a second phase of data collection in November 2009 (they had some funds left which allowed them to increase the sample size).
| Date de début | Date de fin |
|---|---|
| 2009 | 2010 |
| Nom | Affiliation |
|---|---|
| Institut National d'Etudes Démographiques | France |
| Centre for Migration Studies of the University of Ghana | Ghana |
| The Department of Technology and Society Studies of the University of Maastricht | The Netherlands |
| Sussex Centre for Migration Research of the University of Sussex | United Kingdom |
The MAFE surveys collect information on potentially vulnerable populations (undocumented migrants) and on sensitive subjects (remittances, legal status…). In order to facilitate the fieldwork and increase the quality of the data, it was important to carefully inform the people who were to be interviewed.
The legal pre-requisites changed according to the country. In France (only), a legal authorization had to be obtained before starting the fieldwork. The CNIL (Commission nationale informatique et libertés) was concerned by the way the contacts were going to be obtained in Senegal and, most of all, by the sensitivity of certain variables contained in the questionnaires (ethnic group, religion). We obtained the authorization to ask these questions, but in order to keep them in our files, we had to ask to the interviewees to sign a written informed consent.
According to legal prescriptions, in all European countries, a letter was designed to explain their rights to the interviewees.
In most countries, a leaflet was designed and used to sensitize respondents and authorities about the MAFE project.
In advance of the survey, several communication actions have been undertaken:
Because of the complexity of the questionnaires, only interviewers with a good experience in complex surveys were recruited.
In African countries, it was highly recommended to hire the same interviewers to conduct both household surveys and individual surveys. This approach proved to be very efficient in all the surveys.
In Europe, interviewers had to be able both to recruit the migrants and to fill correctly the questionnaire. As a general rule, it was preferable to have a relatively small number of well-trained interviewers than a large number of interviewers.
Overall, around 20 to 25 interviewers and supervisors were involved in data collection in each country.
The number of the interviewers per survey varied between 8 (survey among Ghanaians in the UK) and 17 (Netherlands). In all the countries, both male and females interviewers were hired; most of them had higher education and some experience with data collection. In some countries (e.g. France), some of them were professional interviewers. The selected interviewers were not necessarily from the same country as the respondents, but most of them also had foreign origins.
For instance, 7 of the 12 interviewers in Belgium were of foreign origin, 5 of them from DR Congo. In the Netherlands, most interviewers were from Ghanaian origin. The fact that many of the interviewers were themselves of foreign origin seemed to have positively influenced the willingness of interviewees to participate in the survey.
Directly after being filled, questionnaires were checked by the interviewers and supervisors. They were then sent to a small team of editors for an in-depth reading. The editors consisted of 9 people in Senegal, 6 in Ghana and 5 in DR Congo. The team had followed the same training as the interviewers, and also received a specific training for editing the questionnaires.
Data entry was performed using MS Access programs prepared by Ined.
A methodological note entitled "Sampling international migrants with origin-based snowballing method: New evidence on biases and limitations", written by Cris Beauchemin and Amparo González-Ferrer, can be found in the study's related materials, as well as another methodological note in french "Biais de non-réponse dans l'enquête Migrations entre l'Afrique et l'Europe (MAFE-Sénégal)" written by Nicolas Razafindratsima, Stéphane Legleye and Cris Beauchemin.
Quetelet Progedo Diffusion
DataLab - Service des Enquêtes et Sondages - Ined
GHANA
In the three African countries, data entry started only after the end of data collection.
In Ghana, data entry staff was trained at the same time as interviewers, and received an additional training for data entry (3 days). Data entry was done in an office in the University of Accra, and supervised by a computer scientist recruited by the local coordinating team. His role was similar as in Senegal. Contrary to what was done in Senegal, consistency tests were not run every day. They were run at the end of data entry, using the program prepared by Ined. On average, around 8 questionnaires were entered per day per interviewer.
EUROPE
Data entry was done after the questionnaires had been corrected and coded.
In MAFE Senegal countries (France, Italy, Spain) a first version of the program developed at Ined in 2008 was used. While several problems were encountered at the beginning of data entry, they were quickly fixed. Most of the problems with the program were experienced by the French team, but Spain and Italy did not have major troubles. Another version of the program was developed for the second series of country.
In spite of the problems encountered during data collection, the data entry programs were overall very good and allowed the research teams to produce data files that are directly comparable.
In all the countries, consistency tests were performed at the end of data entry, using the program prepared by Ined. These programs allowed detecting inconsistencies due to errors during data entry, or that had gone unnoticed during the editing phase. These inconsistencies were corrected in the data base, and programs run again until no inconsistencies were left. Some difficulties were encountered with early versions of the program (some 'false errors' were identified), but most were quickly fixed by Ined.
| Nom de l'organisation | URL |
|---|---|
| Institut national d'études démographiques | https://www.ined.fr/ |
2014-06
| Nom | Affiliation | |
|---|---|---|
| BARON Julie | Ined | enquetes@ined.fr |
| Texte de la déclaration de confidentialité |
|---|
|
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Every user of the MAFE data must cite this paragraph in its publications:
English version : "The MAFE project is coordinated by Ined (C. Beauchemin) and is formed, additionally by the Université catholique de Louvain (B. Schoumaker), Maastricht University (V. Mazzucato), the Université Cheikh Anta Diop (P. Sakho), the Université de Kinshasa (J. Mangalu), the University of Ghana (P. Quartey), the Universitat Pompeu Fabra (P. Baizan), the Consejo Superior de Investigaciones Científicas (A. González-Ferrer), the Forum Internazionale ed Europeo di Ricerche sull'Immigrazione (E. Castagnone), and the University of Sussex (R. Black). The MAFE project received funding from the European Community's Seventh Framework Programme under grant agreement 217206. The MAFE-Senegal survey was conducted with the financial support of Ined, the Agence Nationale de la Recherche (France), the Région Ile de France and the FSP programme 'International Migrations, territorial reorganizations and development of the countries of the South'. For more details, see: http://www.mafeproject.com/"
French version : "Le projet MAFE est coordonné par l'Ined (C. Beauchemin), en partenariat avec l'Université catholique de Louvain (B. Schoumaker), la Maastricht University (V. Mazzucato), l'Université Cheikh Anta Diop (P. Sakho), l'Université de Kinshasa (J. Mangalu), l'University of Ghana (P. Quartey), l'Universitat Pompeu Fabra (P. Baizan), le Consejo Superior de Investigaciones Científicas (A. González -Ferrer), le Forum Internazionale ed Europeo di Ricerche sull'Immigrazione (E. Castagnone), et l'University of Sussex (R. Black). Le projet MAFE a reçu un financement du Septième Programme-Cadre de la Communauté européenne (subvention 217206). L'enquête MAFE-Sénégal a été réalisée grâce au soutien financier de l'Ined, de l'Agence Nationale de la Recherche, de la région Ile de France, et du programme FSP 'Migrations internationales, recompositions territoriales et développement dans les pays du Sud'. Pour plus d'information, voir : http://www.mafeproject.com/"
In addition, to refer to the survey design, the following documents can also be refered to:
Beauchemin, C. (2012). Migrations between Africa and Europe: Rationale for a Survey Design. MAFE Methodological Note 5. Paris, Ined: 45.
Schoumaker, B., C. Mezger, N. Razafindratsima and A. Bringé (2013). Sampling and Computation Weights in the MAFE Surveys. MAFE Methodological Note 6: 73.
These MAFE methodological notes are available at: http://mafeproject.site.ined.fr/en/methodo/methodological_notes/
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IE0216C 10.48756/ined-IE0216C-1009
| Nom | Affiliation |
|---|---|
| MORISSET Amandine | Service des enquêtes et des sondages, Ined |
Version 1.2 (2015-04-13)
Version 2.0 (2021-08-25) : Mise en conformité avec le CESSDA, enrichissement des métadonnées
2021-08-25