Volume 55 - Number 3 - Fall 1989

O. The Production of Population Statistics

Studies concerned with the actual production of basic population data. Includes more than governmental publications.

O.1. Population Statistics, General Aspects

Studies on the collection of general demographic statistics and related problems such as studies on data processing.

55:30747 Anker, Richard; Khan, M. E.; Prasad, C. V. S. Community questionnaire and the collection of community-level information: with sample questionnaire from an Indian study. Population and Labour Policies Programme Working Paper, No. 164, ISBN 92-2-107149-9. May 1989. iii, 106 pp. International Labour Office [ILO]: Geneva, Switzerland. In Eng.
"The present working paper is mainly concerned with problems in the collection of community-level data. It is based to a large extent on practical field work experiences associated with the development of a community questionnaire for inclusion in a large scale household survey conducted in India in 1988." Questionnaire design and interview procedures are assessed, with a focus on interviewer training, group interviews, village social structure, the use of various probes and checks to evaluate responses, and the quality of government health and family planning centers.
Correspondence: ILO Publications, International Labour Office, Route des Morillons, CH-1211 Geneva 22, Switzerland. Location: Princeton University Library (SPR).

55:30748 Berko, Robert L.; Sadler, Sherry. Where to write for vital records of births, deaths, divorces and marriages. ISBN 0-934873-10-0. LC 88-29545. 1989. 43 pp. Consumer Education Research Center: South Orange, New Jersey. In Eng.
This work provides information on where to write for vital records concerning births, deaths, marriages, and divorces in the United States.
Correspondence: Consumer Education Research Center, P.O. Box 336, South Orange, NJ 07079. Location: Princeton University Library (SPR).

55:30749 Cleveland, David A. Developmental stage age groups and African population structure: the Kusasi of the West African savanna. American Anthropologist, Vol. 91, No. 2, Jun 1989. 401-13 pp. Washington, D.C. In Eng.
"African population structures based on censuses exhibit a distinctive pattern of distortion. It is often assumed that the cause for this distortion is systematic biases in age estimates by census enumerators and respondents influenced by perceptions of social and biological development. African developmental stage age groups are the cultural codification of such perceptions. I describe developmental stage age groups among the Kusasi of Bawku District in northeast Ghana, and analyze their age and sex structure for a sample of 1,132 individuals from the village of Zorse. I show that differences between men and women reflect differences in biological and social development, and that cultural concepts of developmental stages could influence age estimates to produce the pattern of distortions typical of those found in African population structures based on censuses."
Correspondence: D. A. Cleveland, Center for People, Food and Environment, 344 South Third Avenue, Tucson, AZ 85701. Location: Princeton University Library (PR).

55:30750 Dmitrieva, R. M.; Andreev, E. M. Statistical observation in demography: stages of development and prospects. [Statisticheskoe nablyudenie v demografii: etapy razvitiya i perspektivy.] In: Metody issledovaniya, edited by A. G. Vishnevskii. 1986. 6-21, 181 pp. Mysl': Moscow, USSR. In Rus. with sum. in Eng.
The author outlines the development of demographic statistics in the USSR. Special attention is given to the collection of data on natural increase and migration, problems of incomplete data, and the quality of registration. The possibility of improving data comparability using computers is considered.
Location: Princeton University Library (SPR).

55:30751 Flowerdew, R.; Goldstein, W. Geodemographics in practice: developments in North America. Environment and Planning A, Vol. 21, No. 5, May 1989. 605-16 pp. London, England. In Eng.
The authors discuss the new industry of geodemographics from the perspective of companies in North America. Utilizing data from government and private sector censuses and surveys, geodemographic firms offer population projections, household descriptions, income, employment structure, and socioeconomic characteristics for various sizes of neighborhoods. Multivariate clustering systems and microcomputers are used for information processing. Trends and future prospects for the industry are discussed.
Correspondence: R. Flowerdew, Institute for Market and Social Analysis, 344 Dupont Street, Toronto, Ontario M5R 1V9, Canada. Location: Princeton University Library (UES).

55:30752 Mosley, W. Henry. Population laboratories for community health research. Working Paper/Documento de Trabajo, No. 21, Apr 1989. 1-24 pp. Population Council, Regional Office for Latin America and the Caribbean: Mexico City, Mexico. In Eng.
This is a historical overview and assessment of community-based population laboratories for health research. "Where national data systems are not available, specialized population laboratories can be established to measure and analyze community health problems. This paper reviews the experience of a number of population laboratories and assesses their contributions as a methodology for community health research." The author uses the United States as an example to describe elements of community laboratories in developed countries, and outlines research projects being set up in selected developing countries.
Correspondence: Population Council, Regional Office for Latin America and the Caribbean, Apartado Postal 105-152, 11560 Mexico D.F., Mexico. Location: Princeton University Library (SPR).

55:30753 Phillips, James F.; Mozumder, Khorshed A.; Leon, David; Koenig, Michael. The application of microcomputer data-base technology to longitudinal studies of health and survival: lessons from a field study in Bangladesh. Working Paper/Documento de Trabajo, No. 21, Apr 1989. 25-54 pp. Population Council, Regional Office for Latin America and the Caribbean: Mexico City, Mexico. In Eng.
The focus of this paper is on innovations in data collection systems for longitudinal, community-based health studies. "This paper reviews the design of...the Bangladesh Sample Registration System (SRS), developed by the International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR,B) to gauge the impact of a health and family planning service project....The SRS is designed to longitudinally monitor demographic events, the health and family planning services provided to rural households by [family planning] workers, and the behavioral outcomes of these services....The paper first reviews concepts guiding the SRS design. Second, it presents an overview of steps in establishing the SRS. Next, it discusses software concepts employed in the SRS system. Finally, examples of studies that can be conducted with the SRS are reviewed with implications of this technology for future work."
Correspondence: Population Council, Regional Office for Latin America and the Caribbean, Apartado Postal 105-152, 11560 Mexico D.F., Mexico. Location: Princeton University Library (SPR).

55:30754 United States. Bureau of the Census (Washington, D.C.). Fifth Annual Research Conference, March 19-22, 1989: proceedings. Aug 1989. ix, 707 pp. Washington, D.C. In Eng.
These are the proceedings of the fifth in a series of annual research conferences conducted by the U.S. Bureau of the Census. Sessions were included on new directions for household surveys, databases and software, edit and imputation, coverage measurement, nonsampling error, census questionnaire design, longitudinal household survey methodology, survey questionnaires, analysis of longitudinal and cross-sectional data, disclosure avoidance, panel studies of the elderly population, agricultural statistics, management's contribution to innovation in statistical agencies, field operation issues, and administrative records in censuses. The primary geographical focus is on the United States, but papers on other countries are included. The text of a keynote address concerning major issues of intergenerational policy is also provided.
Correspondence: U.S. Bureau of the Census, Washington, D.C. 20233. Location: Princeton University Library (SPR).

O.2. Registration of Vital Statistics

Studies of the organization and operation of vital statistics at local and national levels, of international comparability, and of special problems.

55:30755 Alderson, Michael R. Mortality, morbidity, and health statistics. ISBN 0-333-42763-7. 1988. xvi, 501 pp. Stockton Press: New York, New York; Macmillan Press: Basingstoke, England. In Eng.
"The aim of this book is first to provide a comprehensive guide to the users of mortality statistics and second to list various sources of morbidity statistics, on abortion, cancer registration, congenital malformation notification, hospital inpatients, morbidity treated in general practice, notification of infectious disease, sickness absence and indicators of morbidity from surveys." Consideration is given to the methodological issues involved in the collection of these data. The geographical focus is worldwide, but particular attention is given to statistics for the United Kingdom. The chapter on mortality statistics includes such issues as data sources, classification and coding of causes of death, data reliability, data linkage, data analysis, life tables, data presentation, and uses of data, as well as a bibliography of international and national publications.
Correspondence: Stockton Press, 15 East 26th Street, New York, NY 10010. Location: Princeton University Library (SPR).

55:30756 Ventura, Stephanie J.; Heuser, Robert L. Compiling provisional and final birth statistics. Population Today, Vol. 17, No. 6, Jun 1989. 6-8 pp. Washington, D.C. In Eng.
An explanation is provided for the differences between the provisional and final U.S. birth statistics produced by the National Center for Health Statistics (NCHS). Some consideration is also given to recent U.S. fertility trends and to Hispanic and Asian fertility.
Correspondence: S. J. Ventura, Natality, Marriage, and Divorce Statistics Branch, Division of Vital Statistics, National Center for Health Statistics, 3700 East-West Highway, Hyattsville, MD 20782. Location: Princeton University Library (SPR).

O.3. Population Censuses and Registers

Studies of the organization and operation of population censuses and registers at local and national levels, of international comparability, and of special problems.

55:30757 Bumazhnaya, D.; Shvartser, N. The organization of automated computation of data from the 1989 all-Union population census. [Organizatsiya avtomatizirovannoi obrabotki materialov vsesoyuznoi perepisi naseleniya 1989 g.] Vestnik Statistiki, No. 1, 1989. 16-20 pp. Moscow, USSR. In Rus.
The authors describe preparations for the automatic processing of data from the 1989 census of the Soviet Union. Topics covered include the preparation of census data for automatic processing, the inclusion of data on magnetic tape, and data processing. Consideration is given to the preparation of published results and of data for further analysis.
Location: Princeton University Library (SPR).

55:30758 Ctrnact, Pavel. Preparation of the 1990 population and housing census. [Priprava scitani lidu, domu a bytu 1990.] Demografie, Vol. 31, No. 2, 1989. 97-104 pp. Prague, Czechoslovakia. In Cze. with sum. in Eng; Rus.
Preparations for the 1990 census of Czechoslovakia are described. The contents of the census are also detailed.
Location: Princeton University Library (SPR).

55:30759 Czechoslovakia. Federalni Statisticky Urad (Prague, Czechoslovakia). Nineteenth demographic conference of the Czechoslovak Demographic Society on preparation of the 1990 population and housing census. [XIX. demograficka konference CSDS na tema priprava scitani lidu, domu a bytu 1990.] Demografie, Vol. 31, No. 1, 1989. 8-16 pp. Prague, Czechoslovakia. In Cze. with sum. in Eng; Rus.
This is a review of the nineteenth conference of the Czechoslovak Demographic Society which was concerned with the plans for the 1990 census. Census content, methodology, data collection, and data analysis are discussed.
Correspondence: Federalni Statisticky Urad, Sokolovska 142, 18613 Prague 8, Czechoslovakia. Location: Princeton University Library (SPR).

55:30760 de la Garza, Rodolfo; DeSipio, Louis. Making Latino numbers add up to increased representation: the road to the 1990 census, reapportionment and redistricting. Texas Population Research Center Papers, Series 11: 1989, No. 11.05, 1989. 22 pp. University of Texas, Texas Population Research Center: Austin, Texas. In Eng.
"This paper will review the experiences of the Latino community [in the United States] regarding enumeration, reapportionment and redistricting associated with the 1980 Census, and it will examine the efforts that are underway to insure that Latinos are adequately protected in the 1991-1992 reapportionment and redistricting process. We will focus primarily on congressional reapportionment and redistricting because these clearly illustrate the impact of the census on Latino political representation. We also review the implications of the Census for state-level redistricting." Particular attention is paid to census methods that will improve the accuracy of the Hispanic count.
Correspondence: Texas Population Research Center, University of Texas, Main 1800, Austin, TX 78712. Location: Princeton University Library (SPR).

55:30761 Ellis, Roy C. Management strategies for the 1990 census. In: American Statistical Association, 1987 proceedings of the Social Statistics Section. [1987]. 402-6 pp. American Statistical Association: Alexandria, Virginia. In Eng.
The author presents management strategies for the 1990 U.S. census. "The three key elements of the Census Bureau's field management philosophy for the 1990 decennial census are as follows: simple procedures and training, formal controls, managers prepared for the unique decennial census setting." An outline of methods to implement this philosophy is provided.
Correspondence: R. C. Ellis, U.S. Bureau of the Census, Washington, D.C. 20233. Location: Princeton University Library (SPR).

55:30762 Jaro, Matthew A. Advances in record-linkage methodology as applied to matching the 1985 census of Tampa, Florida. JASA: Journal of the American Statistical Association, Vol. 84, No. 406, Jun 1989. 414-20 pp. Alexandria, Virginia. In Eng.
This article describes the theoretical and practical issues encountered in conducting the matching of individuals recorded in the 1985 test census of Tampa, Florida, to individuals included in the postenumeration survey. "A review of the theoretical background of the record-linkage problem provides a framework for discussions of the decision procedure, file blocking, and the independence assumption. The estimation of the parameters required by the decision procedure is an important aspect of the methodology, and the techniques presented provide a practical system that is easily implemented. The matching algorithm (discussed in detail) uses the linear sum assignment model to 'pair' the records. The Tampa, Florida, matching methodology is described in the final sections of the article. Included in the discussion are the results of the matching itself, an independent clerical review of the matches and nonmatches, conclusions, problem areas, and future work required."
Correspondence: M. A. Jaro, System Automation Corporation, Silver Spring, MD 20910. Location: Princeton University Library (SPR).

55:30763 Johnson, Robert A. Evaluation of U.S. Census Bureau measures of Hispanic origin. In: American Statistical Association, 1987 proceedings of the Social Statistics Section. [1987]. 124-8 pp. American Statistical Association: Alexandria, Virginia. In Eng.
"The objectives of this paper are as follows: 1) to compare two statistical approaches to evaluating survey data on Hispanic origin, namely a) the U.S. Census Bureau survey error model (Hansen, et al., 1961, 1964), and related models, and b) latent structure analysis (Goodman, 1974; Clogg and Goodman, 1984); 2) to test the assumptions of these approaches; and 3) to reach conclusions about the appropriateness of the approaches for research on measurement and for decision-making."
Correspondence: R. A. Johnson, U.S. Bureau of the Census, CSMR, 3644-3, Washington, D.C. 20233. Location: Princeton University Library (SPR).

55:30764 Kingkade, W. Ward. Content, organization, and methodology in recent Soviet population censuses. Population and Development Review, Vol. 15, No. 1, Mar 1989. 123-38, 180, 182 pp. New York, New York. In Eng. with sum. in Fre; Spa.
"Four population censuses have been conducted in the Soviet Union since World War II: in 1959, 1970, 1979, and 1989. This note reviews the scope and methodology of these censuses. The 1989 census incorporated a number of new questions related to the Gorbachev-era reforms. For the first time since 1926, the Soviet census has included housing characteristics, while additional questions address migration, employment in the private sector, vocational training, and secondary incomes. The availability of data from postwar Soviet censuses has been minimal, particularly in the case of the 1979 census, but there are indications that the 1989 results will be published more widely."
Correspondence: W. W. Kingkade, Soviet Branch, Center for International Research, U.S. Bureau of the Census, Washington, D.C. 20233. Location: Princeton University Library (SPR).

55:30765 Labutova, T. The socioeconomic structure of the population. [Sotsial'no-ekonomicheskaya struktura naseleniya.] Vestnik Statistiki, No. 12, 1988. 31-4 pp. Moscow, USSR. In Rus.
The author discusses plans for the next all-Union population census in the USSR, with a focus on gathering data on socioeconomic characteristics.
Location: Princeton University Library (SPR).

55:30766 Robey, Bryant. Two hundred years and counting: the 1990 census. Population Bulletin, Vol. 44, No. 1, Apr 1989. 44 pp. Population Reference Bureau: Washington, D.C. In Eng.
"This Bulletin discusses the [U.S.] Census Bureau's plans for taking the 1990 Census, looks back on 200 years of census taking in America, and details such key aspects of the 1990 Census as the questionnaire, census geography, and data dissemination plans. It also examines such issues as census undercount and the homeless population that will be particularly important in the coming census."
Correspondence: Population Reference Bureau, 777 14th Street NW, Suite 800, Washington, D.C. 20005. Location: Princeton University Library (SPR).

55:30767 Royce, Donald A.; Pryor, Edward T. Canada's census of population: 1986 experience and 1991 plans. In: American Statistical Association, 1987 proceedings of the Social Statistics Section. [1987]. 407-12 pp. American Statistical Association: Alexandria, Virginia. In Eng.
"This paper describes the 1986 [Canadian census] experience and how it has shaped the planning for the next Census in 1991." Included is an evaluation of the 1986 census and an identification of problem areas, specifically problems involved in data collection. "The current state of development for the 1991 Census is described...with special emphasis on the content consultation activities and the research and testing being conducted in preparation for 1991."
Correspondence: D. A. Royce, Methodology Branch, Statistics Canada, Ottawa, Ontario K1A 0T6, Canada. Location: Princeton University Library (SPR).

55:30768 Schwartz, Joe. The census means business. American Demographics, Vol. 11, No. 7, Jul 1989. 18-23 pp. Ithaca, New York. In Eng.
The author reviews the latest technology in microcomputing and digital mapping methods that will be useful in analyzing data from the 1990 U.S. census. Changes in the distribution of census results are described, and an example of the information on a sample census tape is presented. The importance of these advances for businesses wanting to use census data is emphasized.
Correspondence: J. Schwartz, American Demographics, 108 North Cayuga Street, Ithaca, NY 14850. Location: Princeton University Library (SPR).

55:30769 Stoker, D. J. The 1985 sample census in the Transkei Republic. [Die 1985-steekproefbevolkingsopname in die Republiek van Transkei.] Southern African Journal of Demography/Suidelike Afrikaanse Tydskrif vir Demografie, Vol. 1, No. 1, Jul 1987. 26-31 pp. Pretoria, South Africa. In Afr.
A method to improve census accuracy using air photography is introduced and the application of the method in the 1985 sample census of Transkei, South Africa, is described. The author relates how results obtained from detailed air photographs were checked with data collected in the traditional way by enumerators.
Correspondence: D. J. Stoker, Raad vir Geesteswetenskaplike Navorsing, Pretoria, South Africa. Location: Princeton University Library (SPR).

55:30770 Sweden. Statistiska Centralbyran (Stockholm, Sweden). Population and housing census, 1985. Part 9: planning and processing. [Folk- och bostadsrakningen, 1985. Del 9: upplaggning och genomforande.] Sveriges Officiella Statistik, ISBN 91-618-0301-4. 1989. 77 pp. Stockholm, Sweden. In Swe. with sum. in Eng.
Organizational and methodological aspects of the 1985 census of Sweden are described. Sections are included on census contents; the information campaign for the census; local contributions; distribution and collection of census forms; checks using civil registration data; the production of population and property registers; employment statistics; data entry, editing, and coding; presentation of results; marketing efforts; and definitions.
Correspondence: Statistiska Centralbyran, Karlavagen 100, S-102 50 Stockholm, Sweden. Location: Princeton University Library (SPR).

55:30771 Zhang, Qingwu. Basic facts on the household registration system. Chinese Economic Studies, Vol. 22, No. 1, Fall 1988. 106 pp. Armonk, New York. In Eng.
The author describes China's household registration system. An introduction by the translator first considers the relationship of the present system to the one that existed in traditional China, its relationship to the Soviet system of registration, and the effect of recent economic reforms on registration. The author then analyzes the system and discusses what information it is supposed to provide, how it works and is managed, and how household registration changes are made. The need to implement the registration regulations effectively is stressed. Details are given of the regulations on household registration adopted in 1958.
Translated from the Chinese by Michael Dutton.
Location: Princeton University Library (PF).

O.4. Surveys

Studies of periodic or special surveys relevant to population studies, excluding KAP (knowledge, attitudes, and practice of family planning) studies, which are coded under F.4.4. Attitudes Toward Fertility and Fertility Control .

55:30772 Mexico. Consejo Estatal de Poblacion de Baja California (Mexicali, Mexico). The Demographic Survey of Baja California (1986): results. [Enquesta Demografica de Baja California (1986): resultados.] [1987]. 412 pp. Mexicali, Mexico. In Spa.
Results from the 1986 Demographic Survey of Baja California, Mexico, are presented. Consideration is given to problems concerning data in the 1980 census, recent population trends, the region's economic development, and migration, including international, internal, and seasonal migration.
Location: East-West Population Institute, Honolulu, HI.

55:30773 Population Council (New York, New York). Burundi 1987: results from the Demographic and Health Survey. Studies in Family Planning, Vol. 20, No. 3, May-Jun 1989. 175-9 pp. New York, New York. In Eng.
Results from the 1987 Demographic and Health Survey for Burundi are presented. Tabular data are included on population characteristics, fertility, contraceptive use, contraception, nuptiality, infant mortality, health, and nutrition.
Correspondence: Population Council, One Dag Hammarskjold Plaza, New York, NY 10017. Location: Princeton University Library (SPR).

55:30774 Population Council (New York, New York). Trinidad and Tobago 1987: results from the Demographic and Health Survey. Studies in Family Planning, Vol. 20, No. 4, Jul-Aug 1989. 235-9 pp. New York, New York. In Eng.
Selected results from the 1987 Demographic and Health Survey undertaken in Trinidad and Tobago are presented. The data concern fertility trends and differentials, fertility preferences, contraceptive use, nuptiality and contraception, postpartum variables, infant mortality, child health, and infant nutrition.
Correspondence: Population Council, One Dag Hammarskjold Plaza, New York, NY 10017. Location: Princeton University Library (SPR).

55:30775 Riandey, Benoit. Index of population surveys: results for metropolitan France. [Repertoire des enquetes demographiques: bilan pour la France metropolitaine.] Revue Francaise de Sociologie, Vol. 30, No. 2, Apr-Jun 1989. 279-97, 354, 356 pp. Paris, France. In Fre. with sum. in Eng; Ger.
Developments in survey techniques that have occurred in France since the end of World War II are reviewed, with an emphasis on improvements in the availability of demographic data. The author describes changes in vital statistics, the development of permanent surveys, and specific surveys carried out since 1970. Some consideration is also given to plans for future surveys.
Correspondence: B. Riandey, INED, Service des Enquetes, 27 rue du Commandeur, 75675 Paris Cedex 14, France. Location: Princeton University Library (PR).

55:30776 Seeman, Isadore; Poe, Gail S.; McLaughlin, Joseph K. Design of the 1986 National Mortality Followback Survey: considerations on collecting data on decedents. Public Health Reports, Vol. 104, No. 2, Mar-Apr 1989. 183-8 pp. Washington, D.C. In Eng.
This is a review of the design and methodology of the U.S. National Mortality Followback Survey. The survey "was conducted by the National Center for Health Statistics on a national probability sample of adult deaths in the United States in 1986. Data were collected on (a) socioeconomic differentials in mortality, (b) prevention of premature death by inquiring into the association of risk factors and cause of death, (c) health care services provided in the last year of life, and (d) the reliability of certain items reported on the death certificate. In addition to demographic characteristics of the decedent available from the death certificate and the questionnaire, information was secured on cigarette smoking practices, alcohol use, food consumption patterns, use of hospital, nursing home, and hospice care, sources of payment for care, duration of disability, and assistance with activities of daily living."
Correspondence: J. K. McLaughlin, Room 415 Executive Plaza North, 6130 Executive Boulevard, Rockville, MD 20852. Location: Princeton University Library (SPR).

55:30777 Somalia. Central Statistical Department (Mogadishu, Somalia). National survey of population, 1980-81: report on findings. May 1986. ix, 50 pp. Central Statistical Department: Mogadishu, Somalia; Westinghouse Institute for Resource Development, Demographic Data for Development: Columbia, Maryland. In Eng.
"This report presents findings from the Survey of Population, a two-round demographic survey that was conducted by the Central Statistical Department of the Ministry of National Planning in 1980 and 1981. The survey covered a national-level sample of 7,239 households in four sectors: other cities and towns, rural and nomadic." Chapters are included on age and sex structure, nuptiality, fertility, mortality, migration, and literacy and labor force participation.
Correspondence: Central Statistical Department, Ministry of National Planning, PO Box 1742, Mogadishu, Somalia. Location: Princeton University Library (SPR).

55:30778 Tuncbilek, Ergul; Toros, Aykut; Cerit, Sevil; Ulusoy, Mahir; Akadli Ergocmen, Banu; Kulu, Isik; Unalan, Turgay. 1988 Turkish Population and Health Survey. Apr 1989. xviii, 173 pp. Hacettepe University, Institute of Population Studies: Ankara, Turkey. In Eng.
Results are presented of the national population and health survey, the fifth quinquennial survey conducted in Turkey since 1968. This survey contains a nationally representative sample of over 5,000 women and nearly 3,000 of their husbands. The methodology of the survey is first outlined. The findings from the women's questionnaire are then presented, with consideration given to nuptiality, consanguineous marriages, fertility, fertility preferences, knowledge and use of contraception, infant health and mortality, and induced abortion. Findings from the husband's and household questionnaires are provided separately. A final chapter examines data quality.
Correspondence: Institute of Population Studies, Hacettepe University, Hacettepi Parki, Ankara, Turkey. Location: Princeton University Library (SPR).

Copyright © 1989-1996, Office of Population Research, Princeton University.