M. Scott Taylor
Personal Details
First Name: | M. Scott |
Middle Name: | |
Last Name: | Taylor |
Suffix: | |
RePEc Short-ID: | pta60 |
[This author has chosen not to make the email address public] | |
http://www.mstaylor1.org | |
Department of Economics The University of Calgary 2500 University Drive, N.W. Calgary, Alberta Canada, T2N 1N4 | |
403-220-8912 | |
Terminal Degree: | 1991 Economics Department; Queen's University (from RePEc Genealogy) |
Affiliation
(95%) Department of Economics
University of Calgary
Calgary, Canadahttp://econ.ucalgary.ca/
RePEc:edi:declgca (more details at EDIRC)
(5%) National Bureau of Economic Research (NBER)
Cambridge, Massachusetts (United States)http://www.nber.org/
RePEc:edi:nberrus (more details at EDIRC)
Research output
Jump to: Working papers Articles ChaptersWorking papers
- M. Scott Taylor, 2024. "Is Free Trade Good for Renewable Resources: Brander & Taylor Redux," NBER Working Papers 33113, National Bureau of Economic Research, Inc.
- M. Scott Taylor & Fruzsina Mayer, 2023. "International Trade, Noise Pollution, and Killer Whales," NBER Working Papers 31390, National Bureau of Economic Research, Inc.
- M. Scott Taylor & Rolf Weder, 2023. "On the Economics of Extinction and Mass Extinctions," NBER Working Papers 31952, National Bureau of Economic Research, Inc.
- Jevan M. Cherniwchan & M. Scott Taylor, 2022.
"International Trade and the Environment: Three Remaining Empirical Challenges,"
NBER Working Papers
30020, National Bureau of Economic Research, Inc.
- Jevan Cherniwchan & M.Scott Taylor, 2022. "International Trade and the Environment: Three Remaining Empirical Challenges," Carleton Economic Papers 22-03, Carleton University, Department of Economics.
- Brian R. Copeland & Joseph S. Shapiro & M. Scott Taylor, 2021. "Globalization and the Environment," NBER Working Papers 28797, National Bureau of Economic Research, Inc.
- M. Scott Taylor, 2021. "Trade, Competitive Exclusion, and the Slow-Motion Extinction of the Southern Resident Killer Whales," NBER Working Papers 29014, National Bureau of Economic Research, Inc.
- Juan Moreno-Cruz & M. Scott Taylor, 2020.
"Food, Fuel and the Domesday Economy,"
NBER Working Papers
27414, National Bureau of Economic Research, Inc.
- Moreno-Cruz, Juan & Taylor, M. Scott, 2020. "Food, Fuel and the Domesday Economy," European Economic Review, Elsevier, vol. 128(C).
- M. Scott Taylor, 2018. "Emptying the Tank: Getting the most out of Limited Data," NBER Working Papers 24855, National Bureau of Economic Research, Inc.
- Moreno-Cruz, Juan & Taylor, M. Scott, 2017.
"An Energy-centric Theory of Agglomeration,"
Working papers
2017/01, Faculty of Business and Economics - University of Basel.
- Moreno-Cruz, Juan & Taylor, M. Scott, 2017. "An energy-centric theory of agglomeration," Journal of Environmental Economics and Management, Elsevier, vol. 84(C), pages 153-172.
- Juan Moreno-Cruz & M. Scott Taylor, 2016. "An Energy-centric Theory of Agglomeration," NBER Working Papers 22964, National Bureau of Economic Research, Inc.
- Jevan Cherniwchan & Brian R. Copeland & M. Scott Taylor, 2016.
"Trade and the Environment: New Methods, Measurements, and Results,"
CESifo Working Paper Series
6109, CESifo.
- Jevan Cherniwchan & Brian R. Copeland & M. Scott Taylor, 2017. "Trade and the Environment: New Methods, Measurements, and Results," Annual Review of Economics, Annual Reviews, vol. 9(1), pages 59-85, September.
- Jevan Cherniwchan & Brian R. Copeland & M. Scott Taylor, 2016. "Trade and the Environment: New Methods, Measurements, and Results," NBER Working Papers 22636, National Bureau of Economic Research, Inc.
- Juan Moreno-Cruz & M. Scott Taylor, 2014.
"A Spatial Approach to Energy Economics: Theory, Measurement and Empirics,"
CESifo Working Paper Series
4845, CESifo.
- M. Scott Taylor & Moreno, "undated". "A Spatial Approach to Energy Economics: Theory, Measurement and Empirics," Working Papers 2014-67, Department of Economics, University of Calgary, revised 29 Sep 2014.
- Juan Moreno-Cruz & M. Scott Taylor, 2013.
"A Spatial Approach to Energy Economics,"
CESifo Working Paper Series
4173, CESifo.
- Juan Moreno Cruz & M. Scott Taylor, 2013. "A Spatial Approach to Energy Economics," NBER Working Papers 18908, National Bureau of Economic Research, Inc.
- M. Scott Taylor & Juan Moreno Cruz, "undated". "A Spatial Approach to Energy Economics," Working Papers 2014-68, Department of Economics, University of Calgary, revised 29 Sep 2014.
- M. Scott Taylor, 2007.
"Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison,"
NBER Working Papers
12969, National Bureau of Economic Research, Inc.
- M. Scott Taylor, 2011. "Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison," American Economic Review, American Economic Association, vol. 101(7), pages 3162-3195, December.
- William A. Brock & M. Scott Taylor, 2004.
"Economic Growth and the Environment: A Review of Theory and Empirics,"
NBER Working Papers
10854, National Bureau of Economic Research, Inc.
- Brock, William A. & Taylor, M. Scott, 2005. "Economic Growth and the Environment: A Review of Theory and Empirics," Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 1, chapter 28, pages 1749-1821, Elsevier.
- Arik Levinson & M. Scott Taylor, 2004.
"Unmasking the Pollution Haven Effect,"
NBER Working Papers
10629, National Bureau of Economic Research, Inc.
- Arik Levinson & M. Scott Taylor, 2008. "Unmasking The Pollution Haven Effect," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 49(1), pages 223-254, February.
- Brian R. Copeland & M. Scott Taylor, 2004.
"Trade, Tragedy, and the Commons,"
NBER Working Papers
10836, National Bureau of Economic Research, Inc.
- Brian R. Copeland & M. Scott Taylor, 2009. "Trade, Tragedy, and the Commons," American Economic Review, American Economic Association, vol. 99(3), pages 725-749, June.
- Arik Levinson and M. Scott Taylor, 2004. "Unmasking the Pollution Haven Hypothesis," Working Papers gueconwpa~04-04-04, Georgetown University, Department of Economics.
- Brock,W.A. & Taylor,M.S., 2004.
"The Green Solow model,"
Working papers
16, Wisconsin Madison - Social Systems.
- William Brock & M. Taylor, 2010. "The Green Solow model," Journal of Economic Growth, Springer, vol. 15(2), pages 127-153, June.
- William A. Brock & M. Scott Taylor, 2004. "The Green Solow Model," NBER Working Papers 10557, National Bureau of Economic Research, Inc.
- Brock,W.A. & Taylor,M.S., 2003.
"The kindergarten rule of sustainable growth,"
Working papers
8, Wisconsin Madison - Social Systems.
- W.A. Brock & M. Scott Taylor, 2003. "The Kindergarten Rule of Sustainable Growth," Public Economics 0303005, University Library of Munich, Germany.
- M. Scott Taylor & William A. Brock, "undated". "The Kindergarten Rule of Sustainable Growth," Working Papers 2014-70, Department of Economics, University of Calgary, revised 29 Sep 2014.
- William A. Brock & M. Scott Taylor, 2003. "The Kindergarten Rule of Sustainable Growth," NBER Working Papers 9597, National Bureau of Economic Research, Inc.
- Brock,W.A. & Taylor,M.S., 2003. "Economic growth and the environment : matching the stylized facts," Working papers 16, Wisconsin Madison - Social Systems.
- Copeland,B.R. & Scott Taylor,M., 2003.
"Trade, growth and the environment,"
Working papers
10, Wisconsin Madison - Social Systems.
- Brian R. Copeland & M. Scott Taylor, 2004. "Trade, Growth, and the Environment," Journal of Economic Literature, American Economic Association, vol. 42(1), pages 7-71, March.
- Brian R. Copeland & M. Scott Taylor, 2003. "Trade, Growth and the Environment," NBER Working Papers 9823, National Bureau of Economic Research, Inc.
- Copeland,B.R. & Taylor,M.S., 2000.
"Free trade and global warming : a trade theory view of the Kyoto protocol,"
Working papers
4, Wisconsin Madison - Social Systems.
- Copeland, Brian R. & Taylor, M. Scott, 2005. "Free trade and global warming: a trade theory view of the Kyoto protocol," Journal of Environmental Economics and Management, Elsevier, vol. 49(2), pages 205-234, March.
- Brian R. Copeland & M. Scott Taylor, 2000. "Free Trade and Global Warming: A Trade Theory View of the Kyoto Protocol," NBER Working Papers 7657, National Bureau of Economic Research, Inc.
- Werner Antweiler & Brian R. Copeland & M. Scott Taylor, 1998.
"Is Free Trade Good for the Environment?,"
NBER Working Papers
6707, National Bureau of Economic Research, Inc.
- Werner Antweiler & Brian R. Copeland & M. Scott Taylor, 2001. "Is Free Trade Good for the Environment?," American Economic Review, American Economic Association, vol. 91(4), pages 877-908, September.
- James Brander & M. Scott Taylor, 1997.
"International Trade Between Consumer and Conservationist Countries,"
NBER Working Papers
6006, National Bureau of Economic Research, Inc.
- Brander, James A. & Scott Taylor, M., 1997. "International trade between consumer and conservationist countries," Resource and Energy Economics, Elsevier, vol. 19(4), pages 267-297, November.
- Brian R. Copeland & M. Scott Taylor, 1997. "A Simple Model of Trade, Capital Mobility, and the Environment," NBER Working Papers 5898, National Bureau of Economic Research, Inc.
- James A. Brander & M. Scott Taylor, 1996.
"Open Access Renewable Resources: Trade and Trade Policy in a Two-CountryModel,"
NBER Working Papers
5474, National Bureau of Economic Research, Inc.
- Brander, James A. & Scott Taylor, M., 1998. "Open access renewable resources: Trade and trade policy in a two-country model," Journal of International Economics, Elsevier, vol. 44(2), pages 181-209, April.
- Brian R. Copeland & M. Scott Taylor, 1995.
"Trade, Spatial Separation, and the Environment,"
NBER Working Papers
5242, National Bureau of Economic Research, Inc.
- Copeland, Brian R. & Taylor, M. Scott, 1999. "Trade, spatial separation, and the environment," Journal of International Economics, Elsevier, vol. 47(1), pages 137-168, February.
- James A. Brander & M. Scott Taylor, 1995.
"International Trade and Open Access Renewable Resources: The Small Open Economy Case,"
NBER Working Papers
5021, National Bureau of Economic Research, Inc.
- James A. Brander & M. Scott Taylor, 1997. "International Trade and Open-Access Renewable Resources: The Small Open Economy Case," Canadian Journal of Economics, Canadian Economics Association, vol. 30(3), pages 526-552, August.
- M. Scott Taylor, "undated". "Trade and the Environment: New Methods, Measurements, and Results NBER Working Paper No. 22636," Working Papers 2016-46, Department of Economics, University of Calgary, revised 01 Dec 2016.
- M. Scott Taylor & Juan Moreno Cruz, "undated".
"Back to the Future of Green Powered Economies,"
Working Papers
2014-69, Department of Economics, University of Calgary, revised 29 Sep 2014.
- Juan Moreno Cruz & M. Scott Taylor, 2012. "Back to the Future of Green Powered Economies," NBER Working Papers 18236, National Bureau of Economic Research, Inc.
- M. Scott Taylor & Brian R. Copeland, "undated".
"International Trade and the Environment: A Framework for Analysis,"
Working Papers
2014-71, Department of Economics, University of Calgary, revised 29 Sep 2014.
- Brian R. Copeland & M. Scott Taylor, 2001. "International Trade and the Environment: A Framework for Analysis," NBER Working Papers 8540, National Bureau of Economic Research, Inc.
Articles
- M. Scott Taylor, 2014. "Can Green Power Save Us from Climate Change?," Swiss Journal of Economics and Statistics (SJES), Swiss Society of Economics and Statistics (SSES), vol. 150(I), pages 23-31, March.
- M. Scott Taylor, 2011.
"Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison,"
American Economic Review, American Economic Association, vol. 101(7), pages 3162-3195, December.
- M. Scott Taylor, 2007. "Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison," NBER Working Papers 12969, National Bureau of Economic Research, Inc.
- William Brock & M. Taylor, 2010.
"The Green Solow model,"
Journal of Economic Growth, Springer, vol. 15(2), pages 127-153, June.
- Brock,W.A. & Taylor,M.S., 2004. "The Green Solow model," Working papers 16, Wisconsin Madison - Social Systems.
- William A. Brock & M. Scott Taylor, 2004. "The Green Solow Model," NBER Working Papers 10557, National Bureau of Economic Research, Inc.
- Brian R. Copeland & M. Scott Taylor, 2009.
"Trade, Tragedy, and the Commons,"
American Economic Review, American Economic Association, vol. 99(3), pages 725-749, June.
- Brian R. Copeland & M. Scott Taylor, 2004. "Trade, Tragedy, and the Commons," NBER Working Papers 10836, National Bureau of Economic Research, Inc.
- M. Scott Taylor, 2009. "Innis Lecture: Environmental crises: past, present, and future," Canadian Journal of Economics, Canadian Economics Association, vol. 42(4), pages 1240-1275, November.
- Arik Levinson & M. Scott Taylor, 2008.
"Unmasking The Pollution Haven Effect,"
International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 49(1), pages 223-254, February.
- Arik Levinson & M. Scott Taylor, 2004. "Unmasking the Pollution Haven Effect," NBER Working Papers 10629, National Bureau of Economic Research, Inc.
- Copeland, Brian R. & Taylor, M. Scott, 2005.
"Free trade and global warming: a trade theory view of the Kyoto protocol,"
Journal of Environmental Economics and Management, Elsevier, vol. 49(2), pages 205-234, March.
- Copeland,B.R. & Taylor,M.S., 2000. "Free trade and global warming : a trade theory view of the Kyoto protocol," Working papers 4, Wisconsin Madison - Social Systems.
- Brian R. Copeland & M. Scott Taylor, 2000. "Free Trade and Global Warming: A Trade Theory View of the Kyoto Protocol," NBER Working Papers 7657, National Bureau of Economic Research, Inc.
- Taylor M. Scott, 2005. "Unbundling the Pollution Haven Hypothesis," The B.E. Journal of Economic Analysis & Policy, De Gruyter, vol. 4(2), pages 1-28, June.
- Brian R. Copeland & M. Scott Taylor, 2004.
"Trade, Growth, and the Environment,"
Journal of Economic Literature, American Economic Association, vol. 42(1), pages 7-71, March.
- Copeland,B.R. & Scott Taylor,M., 2003. "Trade, growth and the environment," Working papers 10, Wisconsin Madison - Social Systems.
- Brian R. Copeland & M. Scott Taylor, 2003. "Trade, Growth and the Environment," NBER Working Papers 9823, National Bureau of Economic Research, Inc.
- Werner Antweiler & Brian R. Copeland & M. Scott Taylor, 2001.
"Is Free Trade Good for the Environment?,"
American Economic Review, American Economic Association, vol. 91(4), pages 877-908, September.
- Werner Antweiler & Brian R. Copeland & M. Scott Taylor, 1998. "Is Free Trade Good for the Environment?," NBER Working Papers 6707, National Bureau of Economic Research, Inc.
- Copeland, Brian R. & Taylor, M. Scott, 1999.
"Trade, spatial separation, and the environment,"
Journal of International Economics, Elsevier, vol. 47(1), pages 137-168, February.
- Brian R. Copeland & M. Scott Taylor, 1995. "Trade, Spatial Separation, and the Environment," NBER Working Papers 5242, National Bureau of Economic Research, Inc.
- Brander, James A. & Scott Taylor, M., 1998.
"Open access renewable resources: Trade and trade policy in a two-country model,"
Journal of International Economics, Elsevier, vol. 44(2), pages 181-209, April.
- James A. Brander & M. Scott Taylor, 1996. "Open Access Renewable Resources: Trade and Trade Policy in a Two-CountryModel," NBER Working Papers 5474, National Bureau of Economic Research, Inc.
- Brander, James A & Taylor, M Scott, 1998. "The Simple Economics of Easter Island: A Ricardo-Malthus Model of Renewable Resource Use," American Economic Review, American Economic Association, vol. 88(1), pages 119-138, March.
- James A. Brander & M. Scott Taylor, 1997.
"International Trade and Open-Access Renewable Resources: The Small Open Economy Case,"
Canadian Journal of Economics, Canadian Economics Association, vol. 30(3), pages 526-552, August.
- James A. Brander & M. Scott Taylor, 1995. "International Trade and Open Access Renewable Resources: The Small Open Economy Case," NBER Working Papers 5021, National Bureau of Economic Research, Inc.
- Copeland, Brian R. & Taylor, M. Scott, 1997. "The trade-induced degradation hypothesis," Resource and Energy Economics, Elsevier, vol. 19(4), pages 321-344, November.
- Brander, James A. & Scott Taylor, M., 1997.
"International trade between consumer and conservationist countries,"
Resource and Energy Economics, Elsevier, vol. 19(4), pages 267-297, November.
- James Brander & M. Scott Taylor, 1997. "International Trade Between Consumer and Conservationist Countries," NBER Working Papers 6006, National Bureau of Economic Research, Inc.
- Copeland, Brian R & Taylor, M Scott, 1995. "Trade and Transboundary Pollution," American Economic Review, American Economic Association, vol. 85(4), pages 716-737, September.
- Brian R. Copeland & M. Scott Taylor, 1995. "Trade and the Environment: A Partial Synthesis," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 77(3), pages 765-771.
- Taylor, M Scott, 1994. "TRIPs, Trade, and Growth," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 35(2), pages 361-381, May.
- Brian R. Copeland & M. Scott Taylor, 1994. "North-South Trade and the Environment," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 109(3), pages 755-787.
- M. Scott Taylor, 1994. ""Once-off" and Continuing Gains from Trade," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 61(3), pages 589-601.
- M. Scott Taylor, 1993. "TRIPS, Trade, and Technology Transfer," Canadian Journal of Economics, Canadian Economics Association, vol. 26(3), pages 625-637, August.
- Taylor, M. Scott, 1993. "'Quality ladders' and Ricardian trade," Journal of International Economics, Elsevier, vol. 34(3-4), pages 225-243, May.
Chapters
- Brock, William A. & Taylor, M. Scott, 2005.
"Economic Growth and the Environment: A Review of Theory and Empirics,"
Handbook of Economic Growth, in: Philippe Aghion & Steven Durlauf (ed.), Handbook of Economic Growth, edition 1, volume 1, chapter 28, pages 1749-1821,
Elsevier.
- William A. Brock & M. Scott Taylor, 2004. "Economic Growth and the Environment: A Review of Theory and Empirics," NBER Working Papers 10854, National Bureau of Economic Research, Inc.
More information
Research fields, statistics, top rankings, if available.Statistics
Access and download statistics for all items
Rankings
This author is among the top 5% authors according to these criteria:- Average Rank Score
- Number of Distinct Works, Weighted by Simple Impact Factor
- Number of Distinct Works, Weighted by Recursive Impact Factor
- Number of Distinct Works, Weighted by Number of Authors and Simple Impact Factors
- Number of Distinct Works, Weighted by Number of Authors and Recursive Impact Factors
- Number of Citations
- Number of Citations, Discounted by Citation Age
- Number of Citations, Weighted by Simple Impact Factor
- Number of Citations, Weighted by Simple Impact Factor, Discounted by Citation Age
- Number of Citations, Weighted by Recursive Impact Factor
- Number of Citations, Weighted by Recursive Impact Factor, Discounted by Citation Age
- Number of Citations, Weighted by Number of Authors
- Number of Citations, Weighted by Number of Authors, Discounted by Citation Age
- Number of Citations, Weighted by Number of Authors and Simple Impact Factors
- Number of Citations, Weighted by Number of Authors and Simple Impact Factors, Discounted by Citation Age
- Number of Citations, Weighted by Number of Authors and Recursive Impact Factors
- Number of Citations, Weighted by Number of Authors and Recursive Impact Factors, Discounted by Citation Age
- h-index
- Number of Registered Citing Authors
- Number of Registered Citing Authors, Weighted by Rank (Max. 1 per Author)
- Number of Journal Pages, Weighted by Simple Impact Factor
- Number of Journal Pages, Weighted by Recursive Impact Factor
- Number of Journal Pages, Weighted by Number of Authors and Simple Impact Factors
- Number of Journal Pages, Weighted by Number of Authors and Recursive Impact Factors
- Number of Abstract Views in RePEc Services over the past 12 months
- Number of Downloads through RePEc Services over the past 12 months
- Number of Abstract Views in RePEc Services over the past 12 months, Weighted by Number of Authors
- Number of Downloads through RePEc Services over the past 12 months, Weighted by Number of Authors
- Euclidian citation score
- Breadth of citations across fields
- Wu-Index
- Record of graduates
Co-authorship network on CollEc
Featured entries
This author is featured on the following reading lists, publication compilations, Wikipedia, or ReplicationWiki entries:NEP Fields
NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 27 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.- NEP-ENV: Environmental Economics (17) 2000-05-16 2000-08-26 2001-10-16 2004-07-18 2005-10-15 2007-03-17 2012-07-29 2014-10-22 2014-10-22 2014-10-22 2014-11-01 2016-09-25 2016-12-04 2021-05-24 2022-06-20 2023-07-31 2024-01-08. Author is listed
- NEP-ENE: Energy Economics (10) 2000-05-16 2000-08-26 2013-03-30 2014-10-22 2014-10-22 2014-10-22 2014-11-01 2017-01-08 2020-07-27 2021-05-24. Author is listed
- NEP-INT: International Trade (7) 2007-03-17 2014-10-22 2016-09-25 2016-12-04 2021-05-24 2022-06-20 2023-07-31. Author is listed
- NEP-GEO: Economic Geography (4) 2013-03-30 2014-10-22 2017-01-08 2020-07-27
- NEP-AGR: Agricultural Economics (3) 2000-05-16 2000-09-05 2021-05-24
- NEP-DEV: Development (3) 2003-04-02 2003-04-09 2004-06-22
- NEP-DGE: Dynamic General Equilibrium (2) 2003-04-09 2003-07-10
- NEP-HIS: Business, Economic and Financial History (2) 2000-05-16 2007-03-17
- NEP-REG: Regulation (2) 2013-03-30 2014-10-22
- NEP-GRO: Economic Growth (1) 2020-07-27
- NEP-LAM: Central and South America (1) 2001-10-01
- NEP-ORE: Operations Research (1) 2021-07-26
- NEP-PBE: Public Economics (1) 2001-10-16
- NEP-PKE: Post Keynesian Economics (1) 2014-10-22
- NEP-RES: Resource Economics (1) 2021-05-24
- NEP-URE: Urban and Real Estate Economics (1) 2017-01-08
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. For general information on how to correct material on RePEc, see these instructions.
To update listings or check citations waiting for approval, M. Scott Taylor should log into the RePEc Author Service.
To make corrections to the bibliographic information of a particular item, find the technical contact on the abstract page of that item. There, details are also given on how to add or correct references and citations.
To link different versions of the same work, where versions have a different title, use this form. Note that if the versions have a very similar title and are in the author's profile, the links will usually be created automatically.
Please note that most corrections can take a couple of weeks to filter through the various RePEc services.