The Impact of Domestic Investment on Economic Growth New Policy Analysis from Algeria
Author
Abstract
Suggested Citation
Download full text from publisher
As the access to this document is restricted, you may want to look for a different version below or search for a different version of it.
Other versions of this item:
- Bakari, Sayef, 2017. "The Impact of Domestic Investment on Economic Growth: New Policy Analysis from Algeria," MPRA Paper 80053, University Library of Munich, Germany.
References listed on IDEAS
- Romer, Paul M, 1986.
"Increasing Returns and Long-run Growth,"
Journal of Political Economy, University of Chicago Press, vol. 94(5), pages 1002-1037, October.
- Paul M Romer, 1999. "Increasing Returns and Long-Run Growth," Levine's Working Paper Archive 2232, David K. Levine.
- Ouedraogo Nosseyamba Benjamin, 2013. "International finance inflows and economic growth in the Independent Republic of Kazakhstan," African Journal of Economic and Sustainable Development, Inderscience Enterprises Ltd, vol. 2(3), pages 229-246.
- Strike Mbulawa, 2017. "The Impact Of Economic Infrastructure On Long Term Economic Growth In Botswana," Journal of Smart Economic Growth, , vol. 2(1), pages 15-33, March.
- Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-1072, June.
- Johansen, Soren & Juselius, Katarina, 1990. "Maximum Likelihood Estimation and Inference on Cointegration--With Applications to the Demand for Money," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 52(2), pages 169-210, May.
- Marilyne Huchet†Bourdon & Chantal Le Mouël & Mariana Vijil, 2018.
"The relationship between trade openness and economic growth: Some new insights on the openness measurement issue,"
The World Economy, Wiley Blackwell, vol. 41(1), pages 59-76, January.
- Marilyne Huchet & Chantal Le Mouël & Mariana Vijil, 2011. "The relationship between trade openness and economic growth: some new insights on the openness measurement issue," Post-Print hal-00729399, HAL.
- Marilyne HUCHET-BOURDON & Chantal Le Mouël & Mariana Vijil, 2013. "The relationship between trade openness and economic growth: Some new insights on the openness measurement issue," EcoMod2013 5131, EcoMod.
- Marilyne Huchet & Chantal Le Mouël & Mariana Vijil, 2018. "The relationship between trade openness and economic growth: Some new insights on the openness measurement issue," Post-Print hal-01987393, HAL.
- Barro, Robert J, 1990.
"Government Spending in a Simple Model of Endogenous Growth,"
Journal of Political Economy, University of Chicago Press, vol. 98(5), pages 103-126, October.
- Robert J. Barro, 1988. "Government Spending in a Simple Model of Endogenous Growth," NBER Working Papers 2588, National Bureau of Economic Research, Inc.
- Barro, Robert J., 1990. "Government Spending in a Simple Model of Endogeneous Growth," Scholarly Articles 3451296, Harvard University Department of Economics.
- Barro, R.J., 1988. "Government Spending In A Simple Model Of Endogenous Growth," RCER Working Papers 130, University of Rochester - Center for Economic Research (RCER).
- repec:ipg:wpaper:2014-583 is not listed on IDEAS
- Robert J. Barro, 1991.
"Economic Growth in a Cross Section of Countries,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 106(2), pages 407-443.
- Robert J. Barro, 1989. "Economic Growth in a Cross Section of Countries," NBER Working Papers 3120, National Bureau of Economic Research, Inc.
- Barro, R.J., 1989. "Economic Growth In A Cross Section Of Countries," RCER Working Papers 201, University of Rochester - Center for Economic Research (RCER).
- Fischer, Stanley, 1993.
"The role of macroeconomic factors in growth,"
Journal of Monetary Economics, Elsevier, vol. 32(3), pages 485-512, December.
- Stanley Fischer, 1993. "The Role of Macroeconomic Factors in Growth," NBER Working Papers 4565, National Bureau of Economic Research, Inc.
- N. Gregory Mankiw & David Romer & David N. Weil, 1992.
"A Contribution to the Empirics of Economic Growth,"
The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 107(2), pages 407-437.
- N. Gregory Mankiw & David Romer & David Weil, 1990. "A Contribution to the Empirics of Economic Growth," Working Papers 1990-24, Brown University, Department of Economics.
- N. Gregory Mankiw & David Romer & David N. Weil, 1990. "A Contribution to the Empirics of Economic Growth," NBER Working Papers 3541, National Bureau of Economic Research, Inc.
- Sayef Bakari, 2017.
"The Long Run and Short Run Impacts of Exports on Economic Growth: Evidence from Gabon,"
Economic Research Guardian, Weissberg Publishing, vol. 7(1), pages 40-57, June.
- Bakari, Sayef, 2017. "The Long Run and Short Run Impacts of Exports on Economic Growth: Evidence from Gabon," MPRA Paper 79871, University Library of Munich, Germany.
- Adams, Samuel & Opoku, Eric Evans Osei, 2015. "Foreign direct investment, regulations and growth in sub-Saharan Africa," Economic Analysis and Policy, Elsevier, vol. 47(C), pages 48-56.
- Sims, Christopher A, 1980. "Macroeconomics and Reality," Econometrica, Econometric Society, vol. 48(1), pages 1-48, January.
- Bakari, Sayef, 2018.
"The Impact of Domestic Investment on Economic Growth New Policy Analysis from Algeria,"
Bulletin of Economic Theory and Analysis, BETA Journals, vol. 3(1), pages 35-51, March.
- Bakari, Sayef, 2017. "The Impact of Domestic Investment on Economic Growth: New Policy Analysis from Algeria," MPRA Paper 80053, University Library of Munich, Germany.
- Forgha, Njimanted G. & Mbella, Mukete E. & Ngangnchi, Forbe H., 2014. "“External Debt, Domestic Investment and Economic Growth in Cameroon” A system Estimation Approach," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 1(1), pages 3-16.
- Njimanted G. FORGHA & Mukete E. MBELLA & Forbe H. NGANGNCHI, 2014. "“External Debt, Domestic Investment and Economic Growth in Cameroon” A system Estimation Approach," Journal of Economics Bibliography, KSP Journals, vol. 1(1), pages 3-16, December.
- Mohsin S. Khan, 1996. "Government Investment and Economic Growth in the Developing World," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 35(4), pages 419-439.
- Hlalefang Khobai & Gift Mugano & Pierre Le Roux, 2017. "The Impact of Electricity Price on Economic Growth in South Africa," International Journal of Energy Economics and Policy, Econjournals, vol. 7(1), pages 108-116.
- Yaya KEHO, 2017. "The Exports and Economic Growth Nexus in Cote D ivoire: Evidence from a Multivariate Time Series Analysis," Asian Journal of Economic Modelling, Asian Economic and Social Society, vol. 5(2), pages 135-146.
- Yılmaz Bayar, 2014. "Savings, Foreign Direct Investment Inflows and Economic Growth in Emerging Asian Economies," Asian Economic and Financial Review, Asian Economic and Social Society, vol. 4(8), pages 1106-1122.
- Sahbi Farhani & Muhammad Shahbaz & Mohammad Mafizur Rahman, 2014. "Natural gas consumption and economic growth in France: Evidence for the role of exports, capital and labor," Working Papers 2014-226, Department of Research, Ipag Business School.
- Omri, Anis & kahouli, Bassem, 2014. "The nexus among foreign investment, domestic capital and economic growth: Empirical evidence from the MENA region," Research in Economics, Elsevier, vol. 68(3), pages 257-263.
- Sayef Bakari & Mohamed Mabrouki, 2017.
"The Effect Of Agricultural Exports On Economic Growth In South-Eastern Europe: An Empirical Investigation Using Panel Data,"
Journal of Smart Economic Growth, , vol. 2(4), pages 49-64, December.
- Bakari, Sayef & Mabrouki, Mohamed, 2017. "The Effect of Agricultural Exports on Economic Growth in South-Eastern Europe: An Empirical Investigation Using Panel Data," MPRA Paper 83810, University Library of Munich, Germany.
- Aschauer, David Alan, 1988.
"The Equilibrium Approach to Fiscal Policy,"
Journal of Money, Credit and Banking, Blackwell Publishing, vol. 20(1), pages 41-62, February.
- David Alan Aschauer, 1986. "The equilibrium approach to fiscal policy," Staff Memoranda 86-2, Federal Reserve Bank of Chicago.
- Sayef Bakari, 2017.
"Appraisal of Trade Potency on Economic Growth in Sudan: New Empirical and Policy Analysis,"
Asian Development Policy Review, Asian Economic and Social Society, vol. 5(4), pages 213-225.
- Bakari, Sayef, 2017. "Appraisal of Trade Potency on Economic Growth in Sudan: New Empirical and Policy Analysis," MPRA Paper 79788, University Library of Munich, Germany.
- Baxter, Marianne & King, Robert G, 1993.
"Fiscal Policy in General Equilibrium,"
American Economic Review, American Economic Association, vol. 83(3), pages 315-334, June.
- King, R.G. & Baxter, M., 1990. "Fiscal Policy In General Equilibrium," RCER Working Papers 244, University of Rochester - Center for Economic Research (RCER).
- Marilyne Huchet & Chantal Le Mouel & Mariana Vijil, 2018. "The relationship between trade openness and economic growth: Some new insights on the openness measurement issue," Post-Print hal-01883878, HAL.
- Sayef Bakari, 2017.
"Appraisal of Trade Potency on Economic Growth in Sudan: New Empirical and Policy Analysis,"
Asian Development Policy Review, Asian Economic and Social Society, vol. 5(4), pages 213-225, December.
- Bakari, Sayef, 2017. "Appraisal of Trade Potency on Economic Growth in Sudan: New Empirical and Policy Analysis," MPRA Paper 79788, University Library of Munich, Germany.
- Sayef Bakari, 2017.
"The Impact Of Domestic Investment On Economic Growth: New Evidence From Malaysia,"
Journal of Smart Economic Growth, , vol. 2(2), pages 105-121, September.
- Bakari, Sayef, 2017. "The Impact of Domestic Investment on Economic Growth: New Evidence from Malaysia," MPRA Paper 79436, University Library of Munich, Germany.
- Mohammad Sharif Karimi & Elham Heshmati Daiari, 2018. "Does Institutions Matter for Economic Development? Evidence for ASEAN Selected Countries," Iranian Economic Review (IER), Faculty of Economics,University of Tehran.Tehran,Iran, vol. 22(1), pages 1-20, Winter.
- Grier, Kevin B. & Tullock, Gordon, 1989. "An empirical analysis of cross-national economic growth, 1951-1980," Journal of Monetary Economics, Elsevier, vol. 24(2), pages 259-276, September.
- repec:bla:scandj:v:95:y:1993:i:4:p:607-25 is not listed on IDEAS
- Adams, Samuel, 2009. "Foreign Direct investment, domestic investment, and economic growth in Sub-Saharan Africa," Journal of Policy Modeling, Elsevier, vol. 31(6), pages 939-949, November.
- Aschauer, David Alan & Greenwood, Jeremy, 1985.
"Macroeconomic effects of fiscal policy,"
Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 23(1), pages 91-138, January.
- David Aschauer & Jeremy Greenwood, 1985. "Macroeconomic Effects of Fiscal Policy," University of Western Ontario, Departmental Research Report Series 8501, University of Western Ontario, Department of Economics.
- Yaya KEHO, 2017. "The Exports and Economic Growth Nexus in Cote D ivoire: Evidence from a Multivariate Time Series Analysis," Asian Journal of Economic Modelling, Asian Economic and Social Society, vol. 5(2), pages 135-146, June.
- repec:ipg:wpaper:2014-557 is not listed on IDEAS
- Granger, C W J, 1969. "Investigating Causal Relations by Econometric Models and Cross-Spectral Methods," Econometrica, Econometric Society, vol. 37(3), pages 424-438, July.
- Johansen, Soren, 1991. "Estimation and Hypothesis Testing of Cointegration Vectors in Gaussian Vector Autoregressive Models," Econometrica, Econometric Society, vol. 59(6), pages 1551-1580, November.
- Yilmaz BAYAR, 2014. "Savings, Foreign Direct Investment Inflows and Economic Growth in Emerging Asian Economies," Asian Economic and Financial Review, Asian Economic and Social Society, vol. 4(8), pages 1106-1122, August.
- Johansen, Soren, 1988. "Statistical analysis of cointegration vectors," Journal of Economic Dynamics and Control, Elsevier, vol. 12(2-3), pages 231-254.
- Chor Foon Tang & Eu Chye Tan, 2015. "The Relative Contributions Of Domestic And Foreign Direct Investments And Exports To Malaysia'S Economic Growth," The Singapore Economic Review (SER), World Scientific Publishing Co. Pte. Ltd., vol. 60(02), pages 1-20.
- Sapkota, Pratikshya & Bastola, Umesh, 2017. "Foreign direct investment, income, and environmental pollution in developing countries: Panel data analysis of Latin America," Energy Economics, Elsevier, vol. 64(C), pages 206-212.
- Nikolaos Dritsakis & Erotokritos Varelas & Antonios Adamopoulos, 2006. "The Main Determinants of Economic Growth : An Empirical Investigation with Granger Causality Analysis for Greece," European Research Studies Journal, European Research Studies Journal, vol. 0(3-4), pages 47-58.
- Lucas, Robert Jr., 1988. "On the mechanics of economic development," Journal of Monetary Economics, Elsevier, vol. 22(1), pages 3-42, July.
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.- Sayef Bakari & Sofien Tiba & Nissar Fakraoui, 2019.
"Does Domestic Investment Contribute To Economic Growth In Uruguay? What Did The Empirical Facts Say?,"
Journal of Smart Economic Growth, , vol. 4(2), pages 53-69, September.
- Bakari, Sayef & Tiba, Sofien & Fakraoui, Nissar, 2019. "Does Domestic Investment Contribute to Economic Growth in Uruguay? What did the Empirical Facts Say?," MPRA Paper 95594, University Library of Munich, Germany.
- Bakari, Sayef & Tiba, Sofien & Fakraoui, Nissar, 2019. "Does Domestic Investment Contribute to Economic Growth in Uruguay? What did the Empirical Facts Say?," MPRA Paper 95526, University Library of Munich, Germany.
- Bakari, Sayef, 2017. "Why is South Africa Still a Developing Country?," MPRA Paper 80763, University Library of Munich, Germany.
- Bakari, Sayef & Fakraoui, Nissar & Mabrouki, Mohamed, 2020. "The Contribution of Domestic Investment, Exports and Imports on Economic Growth: A Case Study of Peru," MPRA Paper 99041, University Library of Munich, Germany.
- Sayef Bakari & Mohamed Mabrouki & Asma Elmakki, 2018.
"The Impact of Domestic Investment in the Industrial Sector on Economic Growth with Partial Openness: Evidence from Tunisia,"
Economics Bulletin, AccessEcon, vol. 38(1), pages 111-128.
- Bakari, Sayef & Mabrouki, Mohamed & elmakki, asma, 2017. "The Impact of Domestic Investment in the Industrial Sector on Economic Growth with Partial Openness: Evidence from Tunisia," MPRA Paper 81039, University Library of Munich, Germany.
- Sayef Bakari, 2017.
"The Relationship between Export, Import, Domestic Investment and Economic Growth in Egypt: Empirical Analysis,"
EuroEconomica, Danubius University of Galati, issue 2(36), pages 34-43, November.
- Bakari, Sayef, 2016. "The relationship between Export, Import, Domestic Investment and Economic Growth in Egypt: Empirical Analysis," MPRA Paper 76627, University Library of Munich, Germany.
- Sayef Bakari & Nissar Fakraoui & Sofien Tiba, 2021.
"Domestic Investment, Export, Import And Economic Growth In Brazil: An Application Of Vector Error Correction Model,"
Journal of Smart Economic Growth, , vol. 6(1), pages 31-48, Mars.
- Bakari, Sayef & Fakraoui, Nissar & Tiba, Sofien, 2019. "Domestic Investment, Export, Import and Economic Growth in Brazil: An Application of Vector Error Correction Model," MPRA Paper 95528, University Library of Munich, Germany.
- Bakari, Sayef & Fakraoui, Nissar & Sofien, Tiba, 2019. "Domestic Investment, Export, Import and Economic Growth in Brazil: An Application of Vector Error Correction Model," MPRA Paper 95474, University Library of Munich, Germany.
- Sayef Bakari & Mohamed Mabrouki & Abdelhafidh Othmani, 2018.
"The Six Linkages Between Foreign Direct Investment, Domestic Investment, Exports, Imports, Labor Force And Economic Growth: New Empirical And Policy Analysis From Nigeria,"
Journal of Smart Economic Growth, , vol. 3(1), pages 25-43, Juin.
- Bakari, Sayef & Mabrouki, Mohamed & Othmani, Abdelhafidh, 2018. "The Six Linkages between Foreign Direct Investment, Domestic Investment, Exports, Imports, Labor Force and Economic Growth: New Empirical and Policy Analysis from Nigeria," MPRA Paper 88259, University Library of Munich, Germany.
- Sayef Bakari & Mohamed Mabrouki & Asma Elmakki, 2018.
"The Nexus Between Industrial Exports And Economic Growth In Tunisia: Empirical Analysis,"
Journal of Smart Economic Growth, , vol. 3(2), pages 31-53, December.
- elmakki, asma & Bakari, Sayef & MABROUKI, Mohamed, 2017. "The Nexus between Industrial Exports and Economic Growth in Tunisia: Empirical Analysis," MPRA Paper 79360, University Library of Munich, Germany.
- Bakari, Sayef & Mabrouki, Mohamed & elmakki, asma, 2018. "The Nexus between Industrial Exports and Economic Growth in Tunisia: Empirical Analysis," MPRA Paper 88956, University Library of Munich, Germany.
- Bakari, Sayef, 2018.
"The Impact Of Citrus Exports On Economic Growth: Empirical Analysis From Tunisia,"
International Journal of Food and Agricultural Economics (IJFAEC), Alanya Alaaddin Keykubat University, Department of Economics and Finance, vol. 6(1), January.
- Bakari, Sayef, 2017. "The Impact of Citrus Exports on Economic Growth: Empirical Analysis from Tunisia," MPRA Paper 82414, University Library of Munich, Germany.
- Bakari, Sayef & Khalfallah, Sirine & Zidi, Ahmed, 2021.
"The Determinants of Agricultural Exports: Empirical Validation for the Case of Tunisia,"
International Journal of Food and Agricultural Economics (IJFAEC), Alanya Alaaddin Keykubat University, Department of Economics and Finance, vol. 9(3), October.
- Bakari, Sayef & Khalfallah, Sirine & Zidi, Ahmed, 2020. "The Determinants of Agricultural Exports: Empirical Validation for the Case of Tunisia," MPRA Paper 100611, University Library of Munich, Germany.
- Palakiyèm Kpemoua, 2016. "Levels Of Education And Economic Performances Of Togo [Niveaux D’Education Et Performances Economiques Du Togo]," Working Papers halshs-01506650, HAL.
- Sayef Bakari, 2017.
"The Three-Way Linkages Between Export, Import And Economic Growth: New Evidence From Tunisia,"
Journal of Smart Economic Growth, , vol. 2(3), pages 13-53, December.
- Bakari, Sayef, 2017. "The Three-Way Linkages between Export, Import and Economic Growth: New Evidence from Tunisia," MPRA Paper 81080, University Library of Munich, Germany.
- Bakari, Sayef, 2021. "Reinvest the relationship between exports and economic growth in African countries: New insights from innovative econometric methods," MPRA Paper 108785, University Library of Munich, Germany.
- Panagiotis Pegkas & Constantinos Tsamadias, 2017. "Are There Separate Effects of Male and Female Higher Education on Economic Growth? Evidence from Greece," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 8(1), pages 279-293, March.
- Turnovsky, S., 2000.
"Growth in an Open Economy: some Recent Developments,"
Papers
5, Warwick - Development Economics Research Centre.
- Stephen J. Turnovsky, 2000. "Growth in an open economy: some recent developments," Working Paper Research 05, National Bank of Belgium.
- Stephen Turnovsky, 2000. "Growth in an Open Economy: Some Recent Developments," Working Papers 0015, University of Washington, Department of Economics.
- Stephen Turnovsky, 2000. "Growth in an Open Economy: Some Recent Developments," Discussion Papers in Economics at the University of Washington 0015, Department of Economics at the University of Washington.
- Sayef Bakari & Mohamed Mabrouki, 2017.
"The Effect Of Agricultural Exports On Economic Growth In South-Eastern Europe: An Empirical Investigation Using Panel Data,"
Journal of Smart Economic Growth, , vol. 2(4), pages 49-64, December.
- Bakari, Sayef & Mabrouki, Mohamed, 2017. "The Effect of Agricultural Exports on Economic Growth in South-Eastern Europe: An Empirical Investigation Using Panel Data," MPRA Paper 83810, University Library of Munich, Germany.
- Ali, Amjad & Ur Rehman, Hafeez, 2015.
"Macroeconomic Instability and Its Impact on Gross Domestic Product: An Empirical Analysis of Pakistan,"
MPRA Paper
71037, University Library of Munich, Germany.
- Ali, Amjad & Ur Rehman, Hafeez, 2015. "Macroeconomic Instability and Its Impact on Gross Domestic Product: An Empirical Analysis of Pakistan," MPRA Paper 82496, University Library of Munich, Germany, revised 2015.
- Sayef Bakari & Mohamed Mabrouki, 2019.
"The Relationship Between Economic Growth, Exports And Imports In Morocco: An Empirical Validation Based On Var Modeling Techniques And Causality In The Meaning Of Granger,"
Journal of Smart Economic Growth, , vol. 4(3), pages 47-55, December.
- Bakari, Sayef & Mabrouki, Mohamed, 2019. "The Relationship between Economic Growth, Exports and Imports in Morocco: An Empirical Validation Based on VAR Modeling Techniques and Causality in the Meaning of Granger," MPRA Paper 94488, University Library of Munich, Germany.
- Audi, Marc & Ali, Amjad, 2017.
"Socio-Economic Development, Demographic Changes And Total Labor Productivity In Pakistan: A Co-Integrational and Decomposition Analysis,"
MPRA Paper
82435, University Library of Munich, Germany, revised Jun 2017.
- Audi, Marc & Ali, Amjad, 2017. "Socio-Economic Development, Demographic Changes and Total Labor Productivity in Pakistan: A Co-Integrational and Decomposition Analysis," MPRA Paper 77538, University Library of Munich, Germany.
- Ejaz Ghani & Musleh-Ud Din, 2006. "The Impact of Public Investment on Economic Growth in Pakistan," The Pakistan Development Review, Pakistan Institute of Development Economics, vol. 45(1), pages 87-98.
More about this item
Keywords
Domestic Investment; VECM; Causality; Economic Growth; Algeria;All these keywords.
JEL classification:
- C13 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Estimation: General
- E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity
- F14 - International Economics - - Trade - - - Empirical Studies of Trade
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:ris:betajl:0022. 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: Erginbay Ugurlu (email available below). General contact details of provider: https://dergipark.org.tr/beta .
Please note that corrections may take a couple of weeks to filter through the various RePEc services.