IDEAS home Printed from https://ideas.repec.org/p/iza/izadps/dp6986.html
   My bibliography  Save this paper

Kindergarten for All: Long Run Effects of a Universal Intervention

Author

Listed:
  • Drange, Nina

    (Statistics Norway)

  • Havnes, Tarjei

    (Norwegian Ministry of Finance)

  • Sandsør, Astrid M. J.

    (University of Oslo)

Abstract

Theory and evidence point towards particularly positive effects of high-quality child care for disadvantaged children. At the same time, disadvantaged families often sort out of existing programs. To counter differences in learning outcomes between children from different socioeconomic backgrounds, European governments are pushing for universal child care. However, evidence on the effects of universal programs is scarce. We provide evidence on the long-run effect on schooling of mandating kindergarten at age 5–6. Our identifying variation comes from a reform that lowered school starting-age from 7 to 6 in Norway in 1997. Our precise DD estimates reveal hardly any effect, both overall, across subsamples, and over the grading distribution. A battery of specification checks support our empirical strategy.

Suggested Citation

  • Drange, Nina & Havnes, Tarjei & Sandsør, Astrid M. J., 2012. "Kindergarten for All: Long Run Effects of a Universal Intervention," IZA Discussion Papers 6986, Institute of Labor Economics (IZA).
    • Handle: RePEc:iza:izadps:dp6986
    as

    Download full text from publisher

    File URL: https://docs.iza.org/dp6986.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Anderson, Michael L, 2008. "Multiple Inference and Gender Differences in the Effects of Early Intervention: A Reevaluation of the Abecedarian, Perry Preschool, and Early Training Projects," Department of Agricultural & Resource Economics, UC Berkeley, Working Paper Series qt15n8j26f, Department of Agricultural & Resource Economics, UC Berkeley.
    2. David Deming, 2009. "Early Childhood Intervention and Life-Cycle Skill Development: Evidence from Head Start," American Economic Journal: Applied Economics, American Economic Association, vol. 1(3), pages 111-134, July.
    3. Berlinski, Samuel & Galiani, Sebastian, 2007. "The effect of a large expansion of pre-primary school facilities on preschool attendance and maternal employment," Labour Economics, Elsevier, vol. 14(3), pages 665-680, June.
    4. Eliana Garces & Duncan Thomas & Janet Currie, 2002. "Longer-Term Effects of Head Start," American Economic Review, American Economic Association, vol. 92(4), pages 999-1012, September.
    5. Sandra E. Black & Paul J. Devereux & Katrine V. L�ken & Kjell G. Salvanes, 2014. "Care or Cash? The Effect of Child Care Subsidies on Student Performance," The Review of Economics and Statistics, MIT Press, vol. 96(5), pages 824-837, December.
    6. Eliana Garces & Duncan Thomas & Janet Currie, 2002. "Longer-Term Effects of Head Start," American Economic Review, American Economic Association, vol. 92(4), pages 999-1012, September.
    7. Esther Duflo, 2001. "Schooling and Labor Market Consequences of School Construction in Indonesia: Evidence from an Unusual Policy Experiment," American Economic Review, American Economic Association, vol. 91(4), pages 795-813, September.
    8. Jonah B. Gelbach, 2002. "Public Schooling for Young Children and Maternal Labor Supply," American Economic Review, American Economic Association, vol. 92(1), pages 307-322, March.
    9. Katrine V. Løken & Magne Mogstad & Matthew Wiswall, 2012. "What Linear Estimators Miss: The Effects of Family Income on Child Outcomes," American Economic Journal: Applied Economics, American Economic Association, vol. 4(2), pages 1-35, April.
    10. Felfe, Christina & Lalive, Rafael, 2012. "Early Child Care and Child Development: For Whom it Works and Why," IZA Discussion Papers 7100, Institute of Labor Economics (IZA).
    11. Gordon B. Dahl & Lance Lochner, 2012. "The Impact of Family Income on Child Achievement: Evidence from the Earned Income Tax Credit," American Economic Review, American Economic Association, vol. 102(5), pages 1927-1956, August.
    12. Jens Ludwig & Douglas L. Miller, 2007. "Does Head Start Improve Children's Life Chances? Evidence from a Regression Discontinuity Design," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(1), pages 159-208.
    13. Eric Bettinger & Torbjørn Haegeland & Mari Rege, 2014. "Home with Mom: The Effects of Stay-at-Home Parents on Children's Long-Run Educational Outcomes," Journal of Labor Economics, University of Chicago Press, vol. 32(3), pages 443-467.
    14. Magne Mogstad & Matthew Wiswall, 2009. "How Linear Models Can Mask Non-Linear Causal Relationships. An Application to Family Size and Children's Education," Discussion Papers 586, Statistics Norway, Research Department.
    15. Carneiro, Pedro & Heckman, James J., 2003. "Human Capital Policy," IZA Discussion Papers 821, Institute of Labor Economics (IZA).
    16. Flavio Cunha & James J. Heckman & Susanne M. Schennach, 2010. "Estimating the Technology of Cognitive and Noncognitive Skill Formation," Econometrica, Econometric Society, vol. 78(3), pages 883-931, May.
    17. Leuven, Edwin & Lindahl, Mikael & Oosterbeek, Hessel & Webbink, Dinand, 2010. "Expanding schooling opportunities for 4-year-olds," Economics of Education Review, Elsevier, vol. 29(3), pages 319-328, June.
    18. Janet Currie & Duncan Thomas, 2000. "School Quality and the Longer-Term Effects of Head Start," Journal of Human Resources, University of Wisconsin Press, vol. 35(4), pages 755-774.
    19. DeCicca, Philip & Smith, Justin, 2013. "The long-run impacts of early childhood education: Evidence from a failed policy experiment," Economics of Education Review, Elsevier, vol. 36(C), pages 41-59.
    20. Imbens, Guido W & Angrist, Joshua D, 1994. "Identification and Estimation of Local Average Treatment Effects," Econometrica, Econometric Society, vol. 62(2), pages 467-475, March.
    21. Elizabeth U. Cascio, 2009. "Do Investments in Universal Early Education Pay Off? Long-term Effects of Introducing Kindergartens into Public Schools," NBER Working Papers 14951, National Bureau of Economic Research, Inc.
    22. Pål Schøne, 2004. "Labour supply effects of a cash-for-care subsidy," Journal of Population Economics, Springer;European Society for Population Economics, vol. 17(4), pages 703-727, December.
    23. Berlinski, Samuel & Galiani, Sebastian & Manacorda, Marco, 2008. "Giving children a better start: Preschool attendance and school-age profiles," Journal of Public Economics, Elsevier, vol. 92(5-6), pages 1416-1440, June.
    24. Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2011. "Too Young to Leave the Nest? The Effects of School Starting Age," The Review of Economics and Statistics, MIT Press, vol. 93(2), pages 455-467, May.
    25. Christina Felfe & Natalia Nollenberger & Núria Rodríguez-Planas, 2015. "Can’t buy mommy’s love? Universal childcare and children’s long-term cognitive development," Journal of Population Economics, Springer;European Society for Population Economics, vol. 28(2), pages 393-422, April.
    26. Anderson, Michael L., 2008. "Multiple Inference and Gender Differences in the Effects of Early Intervention: A Reevaluation of the Abecedarian, Perry Preschool, and Early Training Projects," Journal of the American Statistical Association, American Statistical Association, vol. 103(484), pages 1481-1495.
    27. Barnett, W. Steven & Belfield, Clive R., 2006. "Early childhood development and social mobility," MPRA Paper 858, University Library of Munich, Germany.
    28. James Heckman & Rodrigo Pinto & Peter Savelyev, 2013. "Understanding the Mechanisms through Which an Influential Early Childhood Program Boosted Adult Outcomes," American Economic Review, American Economic Association, vol. 103(6), pages 2052-2086, October.
    29. Currie, Janet & Thomas, Duncan, 1995. "Does Head Start Make a Difference?," American Economic Review, American Economic Association, vol. 85(3), pages 341-364, June.
    30. Lundin, Daniela & Mörk, Eva & Öckert, Björn, 2008. "How far can reduced childcare prices push female labour supply?," Labour Economics, Elsevier, vol. 15(4), pages 647-659, August.
    31. Drange, Nina & Rege, Mari, 2013. "Trapped at home: The effect of mothers' temporary labor market exits on their subsequent work career," Labour Economics, Elsevier, vol. 24(C), pages 125-136.
    32. Knudsen, Eric I. & Heckman, James J. & Cameron, Judy L. & Shonkoff, Jack P., 2006. "Economic, Neurobiological and Behavioral Perspectives on Building America's Future Workforce," IZA Discussion Papers 2190, Institute of Labor Economics (IZA).
    33. Michael Baker & Jonathan Gruber & Kevin Milligan, 2008. "Universal Child Care, Maternal Labor Supply, and Family Well-Being," Journal of Political Economy, University of Chicago Press, vol. 116(4), pages 709-745, August.
    34. Eric Knudsen & James J. Heckman & Judy Cameron & Jack P. Shonkoff, 2006. "Economic, Neurobiological and Behavioral Perspectives on Building America’s Future Workforce," World Economics, World Economics, 1 Ivory Square, Plantation Wharf, London, United Kingdom, SW11 3UE, vol. 7(3), pages 17-41, July.
    35. Havnes, Tarjei & Mogstad, Magne, 2015. "Is universal child care leveling the playing field?," Journal of Public Economics, Elsevier, vol. 127(C), pages 100-114.
    36. Sergio Firpo & Nicole M. Fortin & Thomas Lemieux, 2009. "Unconditional Quantile Regressions," Econometrica, Econometric Society, vol. 77(3), pages 953-973, May.
    37. Heckman, James J. & Moon, Seong Hyeok & Pinto, Rodrigo & Savelyev, Peter A. & Yavitz, Adam, 2010. "The rate of return to the HighScope Perry Preschool Program," Journal of Public Economics, Elsevier, vol. 94(1-2), pages 114-128, February.
    38. Michael Baker, 2011. "Innis Lecture: Universal early childhood interventions: what is the evidence base?," Canadian Journal of Economics, Canadian Economics Association, vol. 44(4), pages 1069-1105, November.
    39. Almond, Douglas & Currie, Janet, 2011. "Human Capital Development before Age Five," Handbook of Labor Economics, in: O. Ashenfelter & D. Card (ed.), Handbook of Labor Economics, edition 1, volume 4, chapter 15, pages 1315-1486, Elsevier.
    40. Baker, Michael, 2011. "Universal Early Childhood Interventions: What is the Evidence Base?," CLSSRN working papers clsrn_admin-2011-29, Vancouver School of Economics, revised 28 Nov 2011.
    41. Pierre Lefebvre & Philip Merrigan, 2008. "Child-Care Policy and the Labor Supply of Mothers with Young Children: A Natural Experiment from Canada," Journal of Labor Economics, University of Chicago Press, vol. 26(3), pages 519-548, July.
    42. Datta Gupta, Nabanita & Simonsen, Marianne, 2010. "Non-cognitive child outcomes and universal high quality child care," Journal of Public Economics, Elsevier, vol. 94(1-2), pages 30-43, February.
    43. Gordon B. Dahl & Lance Lochner, 2005. "The Impact of Family Income on Child Achievement," NBER Working Papers 11279, National Bureau of Economic Research, Inc.
    44. Blau, David & Currie, Janet, 2006. "Pre-School, Day Care, and After-School Care: Who's Minding the Kids?," Handbook of the Economics of Education, in: Erik Hanushek & F. Welch (ed.), Handbook of the Economics of Education, edition 1, volume 2, chapter 20, pages 1163-1278, Elsevier.
    45. Janet Currie, 2001. "Early Childhood Education Programs," Journal of Economic Perspectives, American Economic Association, vol. 15(2), pages 213-238, Spring.
    46. Fitzpatrick Maria D, 2008. "Starting School at Four: The Effect of Universal Pre-Kindergarten on Children's Academic Achievement," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 8(1), pages 1-40, November.
    47. Besley, Timothy & Case, Anne, 2000. "Unnatural Experiments? Estimating the Incidence of Endogenous Policies," Economic Journal, Royal Economic Society, vol. 110(467), pages 672-694, November.
    48. Berlinski, Samuel & Galiani, Sebastian & Manacorda, Marco, 2008. "Giving children a better start: Preschool attendance and school-age profiles," Journal of Public Economics, Elsevier, vol. 92(5-6), pages 1416-1440, June.
    49. Tarjei Havnes & Magne Mogstad, 2011. "No Child Left Behind: Subsidized Child Care and Children's Long-Run Outcomes," American Economic Journal: Economic Policy, American Economic Association, vol. 3(2), pages 97-129, May.
    50. Havnes, Tarjei & Mogstad, Magne, 2010. "Is Universal Child Care Leveling the Playing Field? Evidence from Non-Linear Difference-in-Differences," IZA Discussion Papers 4978, Institute of Labor Economics (IZA).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Michihito Ando & Hiroaki Mori & Shintaro Yamaguchi, 2022. "Universal Early Childhood Education and Adolescent Risky Behavior," RF Berlin - CReAM Discussion Paper Series 2218, Rockwool Foundation Berlin (RF Berlin) - Centre for Research and Analysis of Migration (CReAM).
    2. Markussen, Simen & Røed, Knut, 2023. "The rising influence of family background on early school performance," Economics of Education Review, Elsevier, vol. 97(C).
    3. Zhao, Yuejun & Markussen, Simen & Røed, Knut, 2024. "School Starting Age and the Social Gradient in Educational Outcomes," IZA Discussion Papers 16851, Institute of Labor Economics (IZA).
    4. Holla,Alaka & Bendini,Maria Magdalena & Dinarte Diaz,Lelys Ileana & Trako,Iva, 2021. "Is Investment in Preprimary Education Too Low ? Lessons from (Quasi) ExperimentalEvidence across Countries," Policy Research Working Paper Series 9723, The World Bank.
    5. Ando, Michihito & Mori, Hiroaki & Yamaguchi, Shintaro, 2022. "Universal Early Childhood Education and Adolescent Risky Behavior," IZA Discussion Papers 15531, Institute of Labor Economics (IZA).
    6. Siflinger, Bettina & van den Berg, Gerard, 2016. "The Effects of a Universal Child Care Reform on Child Health – Evidence from Sweden," VfS Annual Conference 2016 (Augsburg): Demographic Change 145765, Verein für Socialpolitik / German Economic Association.
    7. Løken, Katrine V. & Lommerud, Kjell Erik & Holm Reiso, Katrine, 2018. "Single mothers and their children: Evaluating a work-encouraging welfare reform," Journal of Public Economics, Elsevier, vol. 167(C), pages 1-20.
    8. Nina Drange & Kjetil Telle, 2018. "Universal child care and inequality of opportunity. Descriptive findings from Norway," Discussion Papers 880, Statistics Norway, Research Department.
    9. Sneha Elango & Jorge Luis García & James J. Heckman & Andrés Hojman, 2015. "Early Childhood Education," NBER Chapters, in: Economics of Means-Tested Transfer Programs in the United States, Volume 2, pages 235-297, National Bureau of Economic Research, Inc.
    10. Vedeler Johnsen, Julian & Holm Reiso, Katrine, 2017. "Economic Impacts of Workfare Reforms for Single Mothers: Benefit Substitution and Labour supply responses," Working Papers in Economics 4/17, University of Bergen, Department of Economics.
    11. Corazzini, Luca & Meschi, Elena & Pavese, Caterina, 2021. "Impact of early childcare on immigrant children’s educational performance," Economics of Education Review, Elsevier, vol. 85(C).
    12. Ando, Michihito & Mori, Hiroaki & Yamaguchi, Shintaro, 2022. "Universal early childhood education and adolescent risky behavior," SocArXiv rnkgs, Center for Open Science.
    13. Julian Vedeler Johnsen & Katrine Holm Reiso, 2020. "Economic Effects of Workfare Reforms for Single Mothers: Benefit Substitution and Labour Supply Responses," Scandinavian Journal of Economics, Wiley Blackwell, vol. 122(2), pages 494-523, April.
    14. van den Berg, Gerard J. & Siflinger, Bettina M., 2018. "The Effects of Day Care on Health During Childhood: Evidence by Age," IZA Discussion Papers 11447, Institute of Labor Economics (IZA).
    15. Christina Felfe & Martin Huber, 2017. "Does preschool boost the development of minority children?: the case of Roma children," Journal of the Royal Statistical Society Series A, Royal Statistical Society, vol. 180(2), pages 475-502, February.
    16. Lauber, Verena & Thomas, Lampert, 2014. "The Effect of Early Universal Daycare on Child Weight Problems," VfS Annual Conference 2014 (Hamburg): Evidence-based Economic Policy 100399, Verein für Socialpolitik / German Economic Association.
    17. repec:ces:ifodic:v:13:y:2015:i:1:p:19158696 is not listed on IDEAS
    18. Christina Felfe & Natalia Nollenberger & Núria Rodríguez-Planas, 2015. "Can’t buy mommy’s love? Universal childcare and children’s long-term cognitive development," Journal of Population Economics, Springer;European Society for Population Economics, vol. 28(2), pages 393-422, April.
    19. Maximilian Bach & Josefine Koebe & Frauke H. Peter, 2019. "Long Run Effects of Universal Childcare on Personality Traits," Discussion Papers of DIW Berlin 1815, DIW Berlin, German Institute for Economic Research.
    20. Andersland, Leroy, 2017. "A Universal Childcare Expansion, Quality, Starting Age, and School Performance," Working Papers in Economics 8/17, University of Bergen, Department of Economics.
    21. Felfe, Christina & Lalive, Rafael, 2014. "Does Early Child Care Help or Hurt Children's Development?," IZA Discussion Papers 8484, Institute of Labor Economics (IZA).
    22. Emilia Soldani, 2021. "Public kindergarten, maternal labor supply, and earnings in the longer run: Too little too late?," LABOUR, CEIS, vol. 35(2), pages 214-263, June.
    23. Henning Finseraas & Inés Hardoy & Pål Schøne, 2017. "School enrolment and mothers’ labor supply: evidence from a regression discontinuity approach," Review of Economics of the Household, Springer, vol. 15(2), pages 621-638, June.
    24. Christina Felfe, 2015. "Childcare and Child Development," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 13(01), pages 16-19, April.
    25. Christina Felfe, 2015. "Childcare and Child Development," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 13(1), pages 16-19, 04.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Drange, Nina & Havnes, Tarjei, 2015. "Child Care Before Age Two and the Development of Language and Numeracy: Evidence from a Lottery," IZA Discussion Papers 8904, Institute of Labor Economics (IZA).
    2. Akabayashi, Hideo & Ruberg, Tim & Shikishima, Chizuru & Yamashita, Jun, 2023. "Education-oriented and care-oriented preschools: Implications on child development," Labour Economics, Elsevier, vol. 84(C).
    3. Jens Dietrichson & Ida Lykke Kristiansen & Bjørn A. Viinholt, 2020. "Universal Preschool Programs And Long‐Term Child Outcomes: A Systematic Review," Journal of Economic Surveys, Wiley Blackwell, vol. 34(5), pages 1007-1043, December.
    4. Rossin-Slater, Maya & Wüst, Miriam, 2016. "What is the Added Value of Preschool? Long-Term Impacts and Interactions with a Health Intervention," IZA Discussion Papers 10254, Institute of Labor Economics (IZA).
    5. Maya Rossin-Slater & Miriam Wüst, 2016. "What is the Added Value of Preschool for Poor Children? Long-Term and Intergenerational Impacts and Interactions with an Infant Health Intervention," NBER Working Papers 22700, National Bureau of Economic Research, Inc.
    6. van Huizen, Thomas & Plantenga, Janneke, 2018. "Do children benefit from universal early childhood education and care? A meta-analysis of evidence from natural experiments," Economics of Education Review, Elsevier, vol. 66(C), pages 206-222.
    7. ANDREOLI Francesco & HAVNES Tarjei & LEFRANC Arnaud, 2014. "Equalization of opportunity: Definitions, implementable conditions and application to early-childhood policy evaluation," LISER Working Paper Series 2014-12, Luxembourg Institute of Socio-Economic Research (LISER).
    8. Carta, Francesca & Rizzica, Lucia, 2018. "Early kindergarten, maternal labor supply and children's outcomes: Evidence from Italy," Journal of Public Economics, Elsevier, vol. 158(C), pages 79-102.
    9. Ylenia Brilli & Daniela Del Boca & Chiara Monfardini, 2013. "Child Care Arrangements: Determinants and Consequences," CHILD Working Papers Series 18, Centre for Household, Income, Labour and Demographic Economics (CHILD) - CCA.
    10. Nina Drange & Kjetil Telle, 2017. "Preschool and school performance of children from immigrant families," Empirical Economics, Springer, vol. 52(2), pages 825-867, March.
    11. Busse, Anna & Gathmann, Christina, 2018. "Free Daycare and its Effects on Children and their Families," IZA Discussion Papers 11269, Institute of Labor Economics (IZA).
    12. Sneha Elango & Jorge Luis García & James J. Heckman & Andrés Hojman, 2015. "Early Childhood Education," NBER Chapters, in: Economics of Means-Tested Transfer Programs in the United States, Volume 2, pages 235-297, National Bureau of Economic Research, Inc.
    13. Brutti, Zelda & Montolio, Daniel, 2021. "Preventing criminal minds: Early education access and adult offending behavior," Journal of Economic Behavior & Organization, Elsevier, vol. 191(C), pages 97-126.
    14. Elizabeth M. Caucutt & Lance Lochner & Youngmin Park, 2017. "Correlation, Consumption, Confusion, or Constraints: Why Do Poor Children Perform so Poorly?," Scandinavian Journal of Economics, Wiley Blackwell, vol. 119(1), pages 102-147, January.
    15. Kuehnle, Daniel & Oberfichtner, Michael, 2017. "Does early child care attendance influence children's cognitive and non-cognitive skill development?," VfS Annual Conference 2017 (Vienna): Alternative Structures for Money and Banking 168241, Verein für Socialpolitik / German Economic Association.
    16. Gruber, Jonathan & Huttunen, Kristiina & Kosonen, Tuomas, 2022. "Paying Moms to Stay Home: Short and Long Run Effects on Parents and Children," Working Papers 151, VATT Institute for Economic Research.
    17. Havnes, Tarjei & Mogstad, Magne, 2015. "Is universal child care leveling the playing field?," Journal of Public Economics, Elsevier, vol. 127(C), pages 100-114.
    18. Datta Gupta, Nabanita & Simonsen, Marianne, 2016. "Academic performance and type of early childhood care," Economics of Education Review, Elsevier, vol. 53(C), pages 217-229.
    19. Andersland, Leroy, 2017. "A Universal Childcare Expansion, Quality, Starting Age, and School Performance," Working Papers in Economics 8/17, University of Bergen, Department of Economics.
    20. Herbst, Chris M., 2013. "Universal Child Care, Maternal Employment, and Children's Long-Run Outcomes: Evidence from the U.S. Lanham Act of 1940," IZA Discussion Papers 7846, Institute of Labor Economics (IZA).

    More about this item

    Keywords

    child care; difference-in-differences; distributional effects; early childhood intervention; kindergarten; child development;
    All these keywords.

    JEL classification:

    • J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
    • H40 - Public Economics - - Publicly Provided Goods - - - General
    • I28 - Health, Education, and Welfare - - Education - - - Government Policy

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:iza:izadps:dp6986. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Holger Hinte (email available below). General contact details of provider: https://edirc.repec.org/data/izaaade.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.