Air Pollution during Pregnancy and Birth Outcomes in Italy
Author
Suggested Citation
Download full text from publisher
Other versions of this item:
- Alessandro Palma & Inna Petrunyk & Daniela Vuri, 2019. "Air Pollution During Pregnancy and Birth Outcomes in Italy," CEIS Research Paper 464, Tor Vergata University, CEIS, revised 03 Sep 2019.
References listed on IDEAS
- Rajeev Dehejia & Adriana Lleras-Muney, 2004.
"Booms, Busts, and Babies' Health,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(3), pages 1091-1130.
- Rajeev Dehejia & Adriana Lleras-Muney, 2004. "Booms, Busts, and Babies' Health," Working Papers 250, Princeton University, Woodrow Wilson School of Public and International Affairs, Center for Health and Wellbeing..
- Eva Arceo & Rema Hanna & Paulina Oliva, 2016.
"Does the Effect of Pollution on Infant Mortality Differ Between Developing and Developed Countries? Evidence from Mexico City,"
Economic Journal, Royal Economic Society, vol. 126(591), pages 257-280, March.
- Arceo, Eva & Hanna, Rema & Oliva, Paulina, 2012. "Does the Effect of Pollution on Infant Mortality Differ between Developing and Developed Countries? Evidence from Mexico City," Working Paper Series rwp12-050, Harvard University, John F. Kennedy School of Government.
- Oliva, Paulina & Arceo, Eva & Hanna, Rema N., 2012. "Does the Effect of Pollution on Infant Mortality Differ Between Developing and Developed Countries? Evidence from Mexico City," Scholarly Articles 9924083, Harvard Kennedy School of Government.
- Rema Hanna & Eva Arceo & Paulina Oliva, 2012. "Does the Effect of Pollution on Infant Mortality Differ Between Developing and Developed Countries? Evidence from Mexico City," CID Working Papers 244, Center for International Development at Harvard University.
- Eva O. Arceo-Gomez & Rema Hanna & Paulina Oliva, 2012. "Does the Effect of Pollution on Infant Mortality Differ Between Developing and Developed Countries? Evidence from Mexico City," NBER Working Papers 18349, National Bureau of Economic Research, Inc.
- repec:pri:cheawb:adriana_booms.pdf is not listed on IDEAS
- Avraham Ebenstein & Victor Lavy & Sefi Roth, 2016. "The Long-Run Economic Consequences of High-Stakes Examinations: Evidence from Transitory Variation in Pollution," American Economic Journal: Applied Economics, American Economic Association, vol. 8(4), pages 36-65, October.
- Janet Currie, 2011.
"Inequality at Birth: Some Causes and Consequences,"
American Economic Review, American Economic Association, vol. 101(3), pages 1-22, May.
- Janet Currie, 2011. "Inequality at Birth: Some Causes and Consequences," NBER Working Papers 16798, National Bureau of Economic Research, Inc.
- Sandra E. Black & Paul J. Devereux & Kjell G. Salvanes, 2007.
"From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 122(1), pages 409-439.
- Sandra E. Black & Paul J. Devereux & Kjell Salvanes, 2005. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes," NBER Working Papers 11796, National Bureau of Economic Research, Inc.
- Paul J. Devereux & Sandra E. Black & Kjell G. Salvanes, 2007. "From the cradle to the labor market? The effect of birth weight on adult outcomes," Open Access publications 10197/316, School of Economics, University College Dublin.
- Black, Sandra E. & Devereux, Paul J. & Salvanes, Kjell G., 2006. "From the cradle to the labor market? The effect of birth weight on adult outcomes," LSE Research Online Documents on Economics 19425, London School of Economics and Political Science, LSE Library.
- Sandra E. Black & Paul Devereux & Kjell Salvanes, 2006. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes," CEE Discussion Papers 0061, Centre for the Economics of Education, LSE.
- Sandra E. Black & Paul Devereux & Kjell G. Salvanes, 2007. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes," Working Papers 200718, Geary Institute, University College Dublin.
- Paul J. Devereux & Sandra E. Black & Kjell G. Salvanes, 2007. "From the cradle to the labor market? The effect of birth weight on adult outcomes," Open Access publications 10197/317, School of Economics, University College Dublin.
- Black, Sandra E. & Devereux, Paul J. & Salvanes, Kjell G., 2005. "From the Cradle to the Labor Market? The Effect of Birth Weight on Adult Outcomes," IZA Discussion Papers 1864, Institute of Labor Economics (IZA).
- Kenneth Y. Chay & Michael Greenstone, 2003.
"The Impact of Air Pollution on Infant Mortality: Evidence from Geographic Variation in Pollution Shocks Induced by a Recession,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 118(3), pages 1121-1167.
- Kenneth Y. Chay & Michael Greenstone, 1999. "The Impact of Air Pollution on Infant Mortality: Evidence from Geographic Variation in Pollution Shocks Induced by a Recession," NBER Working Papers 7442, National Bureau of Economic Research, Inc.
- Joshua D. Angrist & Jörn-Steffen Pischke, 2009. "Mostly Harmless Econometrics: An Empiricist's Companion," Economics Books, Princeton University Press, edition 1, number 8769.
- Resul Cesur & Erdal Tekin & Aydogan Ulker, 2017.
"Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure,"
Economic Journal, Royal Economic Society, vol. 127(600), pages 330-362, March.
- Resul Cesur & Erdal Tekin & Aydogan Ulker, 2013. "Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure," NBER Working Papers 18736, National Bureau of Economic Research, Inc.
- Cesur, Resul & Tekin, Erdal & Ulker, Aydogan, 2013. "Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure," IZA Discussion Papers 7179, Institute of Labor Economics (IZA).
- Kenneth Y. Chay & Michael Greenstone, 2005.
"Does Air Quality Matter? Evidence from the Housing Market,"
Journal of Political Economy, University of Chicago Press, vol. 113(2), pages 376-424, April.
- Kenneth Y. Chay & Michael Greenstone, 1998. "Does Air Quality Matter? Evidence from the Housing Market," NBER Working Papers 6826, National Bureau of Economic Research, Inc.
- Janet Currie & Enrico Moretti, 2007.
"Biology as Destiny? Short- and Long-Run Determinants of Intergenerational Transmission of Birth Weight,"
Journal of Labor Economics, University of Chicago Press, vol. 25(2), pages 231-264.
- Janet Currie & Enrico Moretti, 2005. "Biology as Destiny? Short and Long-Run Determinants of Intergenerational Transmission of Birth Weight," NBER Working Papers 11567, National Bureau of Economic Research, Inc.
- Janet Currie, 2005. "Biology As Destiny? Short And Long-Run Determinants Of Intergenerational Transmission Of Birth Weight," Working Papers id:194, eSocialSciences.
- Prashant Bharadwaj & Matthew Gibson & Joshua Graff Zivin & Christopher Neilson, 2017.
"Gray Matters: Fetal Pollution Exposure and Human Capital Formation,"
Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 4(2), pages 505-542.
- Prashant Bharadwaj & Matthew Gibson & Joshua Graff Zivin & Christopher A. Neilson, 2014. "Gray Matters: Fetal Pollution Exposure and Human Capital Formation," NBER Working Papers 20662, National Bureau of Economic Research, Inc.
- Prashant Bharadwaj & Matthew Gibson & Joshua Graff Zivin & Christopher Neilson, 2016. "Gray Matters: Fetal Pollution Exposure and Human Capital Formation," Department of Economics Working Papers 2016-01, Department of Economics, Williams College.
- Olivier Deschenes & Michael Greenstone & Jonathan Guryan, 2009. "Climate Change and Birth Weight," American Economic Review, American Economic Association, vol. 99(2), pages 211-217, May.
- Currie, Janet & Neidell, Matthew & Schmieder, Johannes F., 2009.
"Air pollution and infant health: Lessons from New Jersey,"
Journal of Health Economics, Elsevier, vol. 28(3), pages 688-703, May.
- Janet Currie & Matthew J. Neidell & Johannes Schmieder, 2008. "Air Pollution and Infant Health: Lessons from New Jersey," NBER Working Papers 14196, National Bureau of Economic Research, Inc.
- repec:pri:cheawb:adriana_booms is not listed on IDEAS
- Janet Currie, 2009.
"Healthy, Wealthy, and Wise: Socioeconomic Status, Poor Health in Childhood, and Human Capital Development,"
Journal of Economic Literature, American Economic Association, vol. 47(1), pages 87-122, March.
- Janet Currie, 2008. "Healthy, Wealthy, and Wise: Socioeconomic Status, Poor Health in Childhood, and Human Capital Development," NBER Working Papers 13987, National Bureau of Economic Research, Inc.
- Janet Currie & Reed Walker, 2011.
"Traffic Congestion and Infant Health: Evidence from E-ZPass,"
American Economic Journal: Applied Economics, American Economic Association, vol. 3(1), pages 65-90, January.
- Janet Currie & W. Reed Walker, 2009. "Traffic Congestion and Infant Health: Evidence from E-ZPass," NBER Working Papers 15413, National Bureau of Economic Research, Inc.
- Janet Currie & Hannes Schwandt, 2016.
"The 9/11 Dust Cloud and Pregnancy Outcomes: A Reconsideration,"
Journal of Human Resources, University of Wisconsin Press, vol. 51(4), pages 805-805-831.
- Janet Currie & Hannes Schwandt, 2014. "The 9/11 Dust Cloud and Pregnancy Outcomes: A Reconsideration," NBER Working Papers 20368, National Bureau of Economic Research, Inc.
- Olivier Deschênes & Michael Greenstone, 2011.
"Climate Change, Mortality, and Adaptation: Evidence from Annual Fluctuations in Weather in the US,"
American Economic Journal: Applied Economics, American Economic Association, vol. 3(4), pages 152-185, October.
- Olivier Deschênes & Michael Greenstone, 2007. "Climate Change, Mortality, and Adaptation: Evidence from Annual Fluctuations in Weather in the US," Working Papers 0707, Massachusetts Institute of Technology, Center for Energy and Environmental Policy Research.
- Olivier Deschênes & Michael Greenstone, 2007. "Climate Change, Mortality, and Adaptation: Evidence from Annual Fluctuations in Weather in the US," NBER Working Papers 13178, National Bureau of Economic Research, Inc.
- Todd Elder & David Figlio & Scott Imberman & Claudia Persico, 2020.
"The Role of Neonatal Health in the Incidence of Childhood Disability,"
American Journal of Health Economics, University of Chicago Press, vol. 6(2), pages 216-250.
- Todd Elder & David N. Figlio & Scott A. Imberman & Claudia Persico, 2019. "The Role of Neonatal Health in the Incidence of Childhood Disability," NBER Working Papers 25828, National Bureau of Economic Research, Inc.
- Janet Currie & Matthew Neidell, 2005.
"Air Pollution and Infant Health: What Can We Learn from California's Recent Experience?,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 120(3), pages 1003-1030.
- Currie, Janet & Neidell, Matthew, 2004. "Air Pollution and Infant Health: What Can We Learn From California's Recent Experience?," IZA Discussion Papers 1056, Institute of Labor Economics (IZA).
- Janet Currie & Matthew Neidell, 2004. "Air Pollution and Infant Health: What Can We Learn From California's Recent Experience," NBER Working Papers 10251, National Bureau of Economic Research, Inc.
- Michael L Anderson, 2020.
"As the Wind Blows: The Effects of Long-Term Exposure to Air Pollution on Mortality,"
Journal of the European Economic Association, European Economic Association, vol. 18(4), pages 1886-1927.
- Michael L. Anderson, 2015. "As the Wind Blows: The Effects of Long-Term Exposure to Air Pollution on Mortality," NBER Working Papers 21578, National Bureau of Economic Research, Inc.
- Janet Currie & Lucas Davis & Michael Greenstone & Reed Walker, 2015. "Environmental Health Risks and Housing Values: Evidence from 1,600 Toxic Plant Openings and Closings," American Economic Review, American Economic Association, vol. 105(2), pages 678-709, February.
- Resul Cesur & Erdal Tekin & Aydogan Ulker, 2017.
"Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure,"
Economic Journal, Royal Economic Society, vol. 127(600), pages 330-362, March.
- Resul Cesur & Erdal Tekin & Aydogan Ulker, 2017. "Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure," Economic Journal, Royal Economic Society, vol. 127(600), pages 330-362.
- Resul Cesur & Erdal Tekin & Aydogan Ulker, 2013. "Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure," NBER Working Papers 18736, National Bureau of Economic Research, Inc.
- Cesur, Resul & Tekin, Erdal & Ulker, Aydogan, 2013. "Air Pollution and Infant Mortality: Evidence from the Expansion of Natural Gas Infrastructure," IZA Discussion Papers 7179, Institute of Labor Economics (IZA).
- Damian Clarke, 2016. "RWOLF: Stata module to calculate Romano-Wolf stepdown p-values for multiple hypothesis testing," Statistical Software Components S458276, Boston College Department of Economics, revised 08 Jul 2020.
- Prashant Bharadwaj & Katrine Vellesen L?ken & Christopher Neilson, 2013.
"Early Life Health Interventions and Academic Achievement,"
American Economic Review, American Economic Association, vol. 103(5), pages 1862-1891, August.
- Bharadwaj, Prashant & Loken, Katrine Vellesen & Neilson, Christopher A., 2012. "Early Life Health Interventions and Academic Achievement," IZA Discussion Papers 6864, Institute of Labor Economics (IZA).
- Bharadwaj, Prashant & Løken, Katrine V. & Neilson, Christopher, 2012. "Early Life Health Interventions And Academic Achievement," Working Papers in Economics 13/12, University of Bergen, Department of Economics.
- repec:ucn:wpaper:10197/317 is not listed on IDEAS
Citations
Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
Cited by:
- Carrasco-Garcés, Moisés & Vásquez-Lavín, Felipe & Ponce Oliva, Roberto D. & Diaz Pincheira, Francisco & Barrientos, Manuel, 2021. "Estimating the implicit discount rate for new technology adoption of wood-burning stoves," Energy Policy, Elsevier, vol. 156(C).
- Vásquez Lavin, Felipe & Barrientos, Manuel & Castillo, Álvaro & Herrera, Iván & Ponce Oliva, Roberto D., 2020. "Firewood certification programs: Key attributes and policy implications," Energy Policy, Elsevier, vol. 137(C).
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.- Alessandro Palma & Inna Petrunyk & Daniela Vuri, 2022. "Prenatal air pollution exposure and neonatal health," Health Economics, John Wiley & Sons, Ltd., vol. 31(5), pages 729-759, May.
- Duque, Valentina & Gilraine, Michael, 2022. "Coal use, air pollution, and student performance," Journal of Public Economics, Elsevier, vol. 213(C).
- Dolores de la Mata & Carlos Felipe Gaviria Garces, 2019. "Exposure to Pollution and Infant Health: Evidence from Colombia," CINCH Working Paper Series 1902, Universitaet Duisburg-Essen, Competent in Competition and Health.
- Colmer, Jonathan & Lin, Dajun & Liu, Siying & Shimshack, Jay, 2021.
"Why are pollution damages lower in developed countries? Insights from high-Income, high-particulate matter Hong Kong,"
Journal of Health Economics, Elsevier, vol. 79(C).
- Colmer, Jonathan & Lin, Dajun & Liu, Siying & Shimshack, Jay, 2020. "Why are pollution damages lower in developed countries? Insights from high income, high-particulate matter Hong Kong," LSE Research Online Documents on Economics 108466, London School of Economics and Political Science, LSE Library.
- Colmer, Jonathan & Lin, Dajun & Liu, Siying & Shimshack, Jay, 2021. "Why Are Pollution Damages Lower in Developed Countries? Insights from High-Income, High-Particulate Matter Hong Kong," IZA Discussion Papers 14591, Institute of Labor Economics (IZA).
- Jonathan Colmer & Dajun Lin & Siying Liu & Jay Shimshack, 2021. "Why Are Pollution Damages Lower in Developed Countries? Insights from High-Income, High-Particulate Matter Hong Kong," CESifo Working Paper Series 9206, CESifo.
- Jonathan Colmer & Dajun Lin & Siying Liu & Jay Shimshack, 2020. "Why are pollution damages lower in developed countries? Insights from high income, high-particulate matter Hong Kong," CEP Discussion Papers dp1702, Centre for Economic Performance, LSE.
- Hill, Elaine L., 2018.
"Shale gas development and infant health: Evidence from Pennsylvania,"
Journal of Health Economics, Elsevier, vol. 61(C), pages 134-150.
- Hill, Elaine L., 2012. "Shale Gas Development and Infant Health: Evidence from Pennsylvania," Working Papers 180063, Cornell University, Department of Applied Economics and Management.
- Carlson, Kyle, 2015.
"Fear itself: The effects of distressing economic news on birth outcomes,"
Journal of Health Economics, Elsevier, vol. 41(C), pages 117-132.
- Carlson, Kyle, 2014. "Fear itself: The effects of distressing economic news on birth outcomes," MPRA Paper 56560, University Library of Munich, Germany.
- Wang, Yangjie & Chen, Xiaohong & Ren, Shenggang, 2019. "Clean energy adoption and maternal health: Evidence from China," Energy Economics, Elsevier, vol. 84(C).
- Nicholas J. Sanders, 2012.
"What Doesn’t Kill You Makes You Weaker: Prenatal Pollution Exposure and Educational Outcomes,"
Journal of Human Resources, University of Wisconsin Press, vol. 47(3), pages 826-850.
- Nicholas J. Sanders, 2011. "What Doesn't Kill you Makes you Weaker: Prenatal Pollution Exposure and Educational Outcomes," Discussion Papers 10-019, Stanford Institute for Economic Policy Research.
- Joshua Graff Zivin & Matthew Neidell, 2013.
"Environment, Health, and Human Capital,"
Journal of Economic Literature, American Economic Association, vol. 51(3), pages 689-730, September.
- Joshua Graff Zivin & Matthew Neidell, 2013. "Environment, Health, and Human Capital," NBER Working Papers 18935, National Bureau of Economic Research, Inc.
- Janet Currie, 2011. "Ungleichheiten bei der Geburt: Einige Ursachen und Folgen," Perspektiven der Wirtschaftspolitik, Verein für Socialpolitik, vol. 12(s1), pages 42-65, May.
- Gillingham, Kenneth & Huang, Pei, 2021.
"Racial disparities in the health effects from air pollution: Evidence from ports,"
ZEW Discussion Papers
21-058, ZEW - Leibniz Centre for European Economic Research.
- Kenneth Gillingham & Pei Huang, 2021. "Racial Disparities in the Health Effects from Air Pollution: Evidence from Ports," NBER Working Papers 29108, National Bureau of Economic Research, Inc.
- 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.
- Douglas Almond & Janet Currie, 2010. "Human Capital Development Before Age Five," NBER Working Papers 15827, National Bureau of Economic Research, Inc.
- Garth Heutel & Christopher J. Ruhm, 2016.
"Air Pollution and Procyclical Mortality,"
Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 3(3), pages 667-706.
- Garth Heutel & Christopher J. Ruhm, 2013. "Air Pollution and Procyclical Mortality," NBER Working Papers 18959, National Bureau of Economic Research, Inc.
- Heutel, Garth & Ruhm, Christopher J., 2013. "Air Pollution and Procyclical Mortality," UNCG Economics Working Papers 13-7, University of North Carolina at Greensboro, Department of Economics.
- Fletcher, Jason & Noghanibehambari, Hamid, 2024. "The siren song of cicadas: Early-life pesticide exposure and later-life male mortality," Journal of Environmental Economics and Management, Elsevier, vol. 123(C).
- Ball, Alastair, 2014.
"Air pollution, foetal mortality, and long-term health: Evidence from the Great London Smog,"
MPRA Paper
63229, University Library of Munich, Germany, revised 25 Mar 2015.
- Ball, Alastair, 2017. "The Lifelong Costs of Urban Smogs," IZA Discussion Papers 10691, Institute of Labor Economics (IZA).
- Janet Currie, 2011.
"Inequality at Birth: Some Causes and Consequences,"
American Economic Review, American Economic Association, vol. 101(3), pages 1-22, May.
- Janet Currie, 2011. "Inequality at Birth: Some Causes and Consequences," NBER Working Papers 16798, National Bureau of Economic Research, Inc.
- Kang, Cheolmin & Ota, Mitsuru & Ushijima, Koichi, 2024. "Benefits of diesel emission regulations: Evidence from the World's largest low emission zone," Journal of Environmental Economics and Management, Elsevier, vol. 125(C).
- Babak Jahanshahi & Brian Johnston & Mark E. McGovern & Duncan McVicar & Dermot O’Reilly & Neil Rowland & Stavros Vlachos, 2024. "Prenatal exposure to particulate matter and infant birth outcomes: Evidence from a population‐wide database," Health Economics, John Wiley & Sons, Ltd., vol. 33(9), pages 2182-2200, September.
- Elder, Todd E. & Goddeeris, John H. & Haider, Steven J., 2016. "Racial and ethnic infant mortality gaps and the role of socio-economic status," Labour Economics, Elsevier, vol. 43(C), pages 42-54.
- Joan Calzada & Meritxell Gisbert & Bernard Moscoso, 2021. "The hidden cost of bananas: pesticide effects on newborns’ health," UB School of Economics Working Papers 2021/405, University of Barcelona School of Economics.
More about this item
Keywords
pre-term birth; birth weight; particulate matter; air pollution; environmental policies;All these keywords.
JEL classification:
- I18 - Health, Education, and Welfare - - Health - - - Government Policy; Regulation; Public Health
- J13 - Labor and Demographic Economics - - Demographic Economics - - - Fertility; Family Planning; Child Care; Children; Youth
- Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
- Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy
NEP fields
This paper has been announced in the following NEP Reports:- NEP-ENE-2019-08-19 (Energy Economics)
- NEP-ENV-2019-08-19 (Environmental Economics)
- NEP-HEA-2019-08-19 (Health Economics)
- NEP-URE-2019-08-19 (Urban and Real Estate Economics)
Statistics
Access and download statisticsCorrections
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:dp12467. 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.