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HOME: POPULATION ISSUES: ADVANCING SUSTAINABLE DEVELOPMENT: Data Systems
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Data Systems, including Censuses & Indicators

Role of Population Data in Evidence-Based Policy

Information about a country's population, growth, characteristics, living conditions, spatial distribution and physical resources is vital for rational policy formulation, planning and implementation. For this reason, the collection and analysis of population and development data constitute a fundamental part of the web of policy-related activities. Over the past two decades, many countries have made demonstrable progress in obtaining such data. Yet, much remains to be done to bring the data fully to bear on population and development policy-making.

Planners need population and development data and information to assess demographic trends; to assess the socio-economic situation of women; to design population policies, strategies and programmes; to integrate population factors into development planning; to monitor and evaluate the effectiveness of policies and programmes in light of national and international development goals; and to help promote population awareness among government decision makers and the population at large. All these tasks require a vast body of information and statistical series, which in turn, require viable national statistical institutional capacity as well as training and research in demographic and statistical methods.

UNFPA Support to National Censuses

UNFPA has long played a leadership role in supporting national efforts at conducting decennial population censuses. Country programmes aimed to build national capacity and technical competence for sustainability have been supported by UNFPA assistance.

In November 2001, UNFPA in partnership with PARIS21, convened an International Expert Group Meeting in Pretoria, South Africa, on Mechanisms for Ensuring Continuity of 10-Year Population Censuses: Strategies for Reducing Census Costs. The Expert Group Meeting was attended by representatives from 41 countries, comprising mainly developing countries, as well as developed countries, donors and multilateral agencies. The meeting was inspired in its serious consideration and discussion of major population census issues by the opening address of Mr. Trevor Manuel, Minister of Finance of South Africa, who made a strong case that census information was essential for progressing towards his nation’s vision of development.. The report of the meeting, containing the conclusions, recommendation and next steps, is among the material that can be accessed here, which also includes the meeting papers and power point presentations.

Closing the Data Barrier

Despite great improvement in data collection and analysis, even the basic demographic indicators provided by many countries are unreliable, incomplete, or difficult to obtain. This so-called ‘data barrier’ is an obstacle for planners in many developing countries.

UNFPA helps developing countries collect, inter alia, sex-disaggregated data on the population's socio-cultural, health, and economic characteristics, and to analyze and disseminate the information. The Fund provides technical assistance and support for census taking, demographic and health surveys, computer software development and training in these areas. It also supports socio-cultural research using qualitative and participatory research methods.

Major Gaps in Data

Data gaps impede efforts to formulate evidence-based policies and design programmes and channel resources to those most in need. Accurate population information and statistics are indispensable to study how demographic trends are affected by, and have an impact on, social, economic and environmental factors. Major gaps exist in these areas:

  • population issues
  • women’s reproductive health
  • women’s work
  • migration, particularly at the regional and international levels
  • data relevant to the effects of population growth and distribution on poverty, environment and natural resources.

Analysis and Future Research

The collection of internationally comparable data is only the beginning of the process. Data must be adequately analysed, widely disseminated and formally integrated in sustainable development planning–all of which requires complex skills and, consequently, technical training.

More research is required on reproductive health and education within the socio-cultural context for sexual and reproductive behaviour. New challenges relating the demographic dynamics of ageing and youth needs, urbanization and migration, deteriorating rural and agricultural conditions, poverty reduction and wasteful consumption and links to population need attention.

Programmes to end violence and other abuses against women, and to eradicate harmful practices such as female genital mutilation, require research on gender roles and relationships and belief systems. Gender-disaggregated data is needed in order to provide a more accurate picture of women’s economic contributions to society, including their management roles and their unpaid labour in the family and in the informal sector.

UNFPA has supported a wide range of data-analysis exercises over several decades. It has helped conduct national censuses, compiled databases and continues to assist countries in their efforts to mainstream gender in data collection, analysis, and use.

UNFPA in Action: Crucial for Human Development Planning

Many countries across all continents would have been unable to conduct population censuses without technical assistance provided by the Fund. This ranges from support for entire censuses, particularly in countries conducting a first modern census, to highly technical elements of census capacity building in other countries, such as in cartography, data processing, data analysis and dissemination, including census-based poverty mapping. In many countries, censuses provided the only stocktaking of the population and its characteristics. Without census information, evidence-based population and development planning would not be possible.

Population censuses are essential for policy and planning purposes. Censuses provide the foundation for good governance and for measuring development progress. They should be held every 10 years as part of a country’s strategy for sequenced and integrated information. Funding constraints have seriously affected the 2000 census round, especially in least developed countries: several countries have postponed censuses or are experiencing funding shortages.

Population-based data and indicators are crucial for national and sub-national policies and plans, for development frameworks, such as the United Nations’ Common Country Assessment (CCAs) and the WB/IMF's Poverty Reduction Strategies Papers (PRSPs), for results based management, as well as for tracking progress towards the international development goals, such as contained in the International Conference on Population and Development (ICPD) and in the Millennium Declaration. Censuses provide a unique data source for meeting a good proportion of these needs. If combined with sample surveys they can provide for most of them.

UNFPA plays a prominent role as a primary stakeholder in helping to define population-based development indicators for various country programming and monitoring purposes, as well as in supporting national statistical capacity-building efforts to collect the required data. Its goal is to help build sustainable statistical systems and create the conditions for evidence-based policy making, especially in support of national poverty reduction programmes.


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