[go: up one dir, main page]
IDEAS home Printed from https://ideas.repec.org/p/tea/wpaper/0610.html
   My bibliography  Save this paper

Lexicographic preferences for rural environmental landscape improvements: implications on individual-specific willingness to pay estimates

Author

Listed:
  • Danny Campbell

    (Institute of Agri-Food and Land Use, Queen’s University Belfast)

  • George Hutchinson

    (Institute of Agri-Food and Land Use, Queen’s University Belfast)

  • Riccardo Scarpa

    (Waikato Management School, Hamilton, New Zealand)

Abstract
In discrete choice experiments respondents are generally assumed to consider all of the attributes across each of the alternatives, and to choose their most preferred. However, results in this paper indicate that for many respondents employ simplified lexicographic decisionmaking rules, whereby they have a ranking of the attributes, but their choice of an alternative is based solely on the level of their most important attribute(s). Not accounting for these simple decision-making heuristics introduces systemic errors and leads to biased point estimates, as they are a violation of the continuity axiom and a departure from the use of compensatory decision-making. In this paper the implications of lexicographic preferences is studied for a number of rural environmental landscape improvement measures. Differently from previous analysis, this paper uses a mixed logit specification and focuses on the sensitivity of individual-specific willingness to pay estimates conditional on whether lexicographic decision-making rules are accounted for in the modelling of discrete choice responses.

Suggested Citation

  • Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Lexicographic preferences for rural environmental landscape improvements: implications on individual-specific willingness to pay estimates," Working Papers 0610, Rural Economy and Development Programme,Teagasc.
    • Handle: RePEc:tea:wpaper:0610
    as

    Download full text from publisher

    File URL: http://www.teagasc.ie/rural-economy/downloads/workingpapers/06wpre10.pdf
    File Function: First version, 2006
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. R.K. Blamey & J.W. Bennett & J.J. Louviere & M.D. Morrison & J.C. Rolfe, 2002. "Attribute Causality in Environmental Choice Modelling," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 23(2), pages 167-186, October.
    2. Colombo, Sergio & Calatrava-Requena, Javier & Hanley, Nick, 2006. "Analysing the social benefits of soil conservation measures using stated preference methods," Ecological Economics, Elsevier, vol. 58(4), pages 850-861, July.
    3. Spash, Clive L. & Hanley, Nick, 1995. "Preferences, information and biodiversity preservation," Ecological Economics, Elsevier, vol. 12(3), pages 191-208, March.
    4. Bhat, Chandra R., 2001. "Quasi-random maximum simulated likelihood estimation of the mixed multinomial logit model," Transportation Research Part B: Methodological, Elsevier, vol. 35(7), pages 677-693, August.
    5. Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Using mixed logit models to derive individual-specific WTP estimates for landscape improvements under agri-environmental schemes: evidence from the Rural Environment Protection Scheme in Ireland," Working Papers 0607, Rural Economy and Development Programme,Teagasc.
    6. Rosenberger, Randall S. & Peterson, George L. & Clarke, Andrea & Brown, Thomas C., 2003. "Measuring dispositions for lexicographic preferences of environmental goods: integrating economics, psychology and ethics," Ecological Economics, Elsevier, vol. 44(1), pages 63-76, February.
    7. Lockwood, Michael, 1996. "Non-Compensatory Preference Structures In Non-Market Valuation Of Natural Area Policy," Australian Journal of Agricultural Economics, Australian Agricultural and Resource Economics Society, vol. 40(2), pages 1-17, August.
    8. McIntosh, E. & Ryan, M., 2002. "Using discrete choice experiments to derive welfare estimates for the provision of elective surgery: Implications of discontinuous preferences," Journal of Economic Psychology, Elsevier, vol. 23(3), pages 367-382, June.
    9. Silvia Ferrini & Riccardo Scarpa, 2005. "Experimental Designs for Environmental Valuation with Choice-Experiments: A Monte-Carlo Investigation," Working Papers in Economics 05/08, University of Waikato.
    10. Train,Kenneth E., 2009. "Discrete Choice Methods with Simulation," Cambridge Books, Cambridge University Press, number 9780521766555.
    11. F Alpizar & F Carlsson & P Martinsson, 2003. "Using Choice Experiments for Non-Market Valuation," Economic Issues Journal Articles, Economic Issues, vol. 8(1), pages 83-110, March.
    12. Stephane Hess & John Polak, 2003. "An alternative method to the scrambled Halton sequence for removing correlation between standard Halton sequences in high dimensions," ERSA conference papers ersa03p406, European Regional Science Association.
    13. Train, K. & Weeks, M., 2004. "Discrete Choice Models in Preference Space and Willingness-to Pay Space," Cambridge Working Papers in Economics 0443, Faculty of Economics, University of Cambridge.
    14. Samuelson, William & Zeckhauser, Richard, 1988. "Status Quo Bias in Decision Making," Journal of Risk and Uncertainty, Springer, vol. 1(1), pages 7-59, March.
    15. DeShazo, J. R. & Fermo, German, 2002. "Designing Choice Sets for Stated Preference Methods: The Effects of Complexity on Choice Consistency," Journal of Environmental Economics and Management, Elsevier, vol. 44(1), pages 123-143, July.
    16. David Revelt & Kenneth Train, 1998. "Mixed Logit With Repeated Choices: Households' Choices Of Appliance Efficiency Level," The Review of Economics and Statistics, MIT Press, vol. 80(4), pages 647-657, November.
    17. Lockwood, Michael, 1997. "Integrated value theory for natural areas," Ecological Economics, Elsevier, vol. 20(1), pages 83-93, January.
    18. Campbell, Danny & Hutchinson, W. George & Scarpa, Riccardo, 2006. "Using Discrete Choice Experiments to Derive Individual-Specific WTP Estimates for Landscape Improvements under Agri-Environmental Schemes: Evidence from the Rural Environment Protection Scheme in Irel," Sustainability Indicators and Environmental Valuation Working Papers 12220, Fondazione Eni Enrico Mattei (FEEM).
    19. Kelvin J. Lancaster, 1966. "A New Approach to Consumer Theory," Journal of Political Economy, University of Chicago Press, vol. 74(2), pages 132-132.
    20. Kenneth E. Train, 1998. "Recreation Demand Models with Taste Differences over People," Land Economics, University of Wisconsin Press, vol. 74(2), pages 230-239.
    21. Christie, Mike & Hanley, Nick & Warren, John & Murphy, Kevin & Wright, Robert & Hyde, Tony, 2006. "Valuing the diversity of biodiversity," Ecological Economics, Elsevier, vol. 58(2), pages 304-317, June.
    22. Nyquist, Hans, 1992. "Optimal Designs of Discrete Response Experiments in Contingent Valuation Studies," The Review of Economics and Statistics, MIT Press, vol. 74(3), pages 559-563, August.
    23. Gelso, Brett R. & Peterson, Jeffrey M., 2005. "The influence of ethical attitudes on the demand for environmental recreation: incorporating lexicographic preferences," Ecological Economics, Elsevier, vol. 53(1), pages 35-45, April.
    24. David Hensher & John Rose & William Greene, 2005. "The implications on willingness to pay of respondents ignoring specific attributes," Transportation, Springer, vol. 32(3), pages 203-222, May.
    25. Riccardo Scarpa & Danny Campbell & W. George Hutchinson, 2007. "Benefit Estimates for Landscape Improvements: Sequential Bayesian Design and Respondents’ Rationality in a Choice Experiment," Land Economics, University of Wisconsin Press, vol. 83(4), pages 617-634.
    26. Luce, Mary Frances & Payne, John W. & Bettman, James R., 2000. "Coping with Unfavorable Attribute Values in Choice," Organizational Behavior and Human Decision Processes, Elsevier, vol. 81(2), pages 274-299, March.
    27. Caussade, Sebastián & Ortúzar, Juan de Dios & Rizzi, Luis I. & Hensher, David A., 2005. "Assessing the influence of design dimensions on stated choice experiment estimates," Transportation Research Part B: Methodological, Elsevier, vol. 39(7), pages 621-640, August.
    28. Gowdy, John M. & Mayumi, Kozo, 2001. "Reformulating the foundations of consumer choice theory and environmental valuation," Ecological Economics, Elsevier, vol. 39(2), pages 223-237, November.
    29. Bhat, Chandra R., 2003. "Simulation estimation of mixed discrete choice models using randomized and scrambled Halton sequences," Transportation Research Part B: Methodological, Elsevier, vol. 37(9), pages 837-855, November.
    30. Saelensminde, Kjartan, 2006. "Causes and consequences of lexicographic choices in stated choice studies," Ecological Economics, Elsevier, vol. 59(3), pages 331-340, September.
    31. Greene, William H. & Hensher, David A. & Rose, John, 2006. "Accounting for heterogeneity in the variance of unobserved effects in mixed logit models," Transportation Research Part B: Methodological, Elsevier, vol. 40(1), pages 75-92, January.
    32. Swait, Joffre & Adamowicz, Wiktor, 2001. "Choice Environment, Market Complexity, and Consumer Behavior: A Theoretical and Empirical Approach for Incorporating Decision Complexity into Models of Consumer Choice," Organizational Behavior and Human Decision Processes, Elsevier, vol. 86(2), pages 141-167, November.
    33. Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Integrating landscape improvement indices and discrete choice experiments: evidence from the Rural Environment Protection Scheme in Ireland," Working Papers 0609, Rural Economy and Development Programme,Teagasc.
    34. Heiner, Ronald A, 1983. "The Origin of Predictable Behavior," American Economic Review, American Economic Association, vol. 73(4), pages 560-595, September.
    35. Kjartan Sælensminde, 2001. "Inconsistent choices in Stated Choice data;Use of the logit scaling approach to handle resulting variance increases," Transportation, Springer, vol. 28(3), pages 269-296, August.
    36. Spash, Clive L., 2000. "Ecosystems, contingent valuation and ethics: the case of wetland re-creation," Ecological Economics, Elsevier, vol. 34(2), pages 195-215, August.
    37. Mandy Ryan & Angela Bate, 2001. "Testing the assumptions of rationality, continuity and symmetry when applying discrete choice experiments in health care," Applied Economics Letters, Taylor & Francis Journals, vol. 8(1), pages 59-63.
    38. Kanninen Barbara J., 1993. "Design of Sequential Experiments for Contingent Valuation Studies," Journal of Environmental Economics and Management, Elsevier, vol. 25(1), pages 1-11, July.
    39. Daniel McFadden & Kenneth Train, 2000. "Mixed MNL models for discrete response," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 15(5), pages 447-470.
    40. Foster, Vivien & Mourato, Susana, 2002. "Testing for Consistency in Contingent Ranking Experiments," Journal of Environmental Economics and Management, Elsevier, vol. 44(2), pages 309-328, September.
    41. Kjartan Sælensminde, 2002. "The Impact of Choice Inconsistencies in Stated Choice Studies," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 23(4), pages 403-420, December.
    42. Jayson L. Lusk & F. Bailey Norwood, 2005. "Effect of Experimental Design on Choice-Based Conjoint Valuation Estimates," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 87(3), pages 771-785.
    43. Jeff Bennett & Russell Blamey (ed.), 2001. "The Choice Modelling Approach to Environmental Valuation," Books, Edward Elgar Publishing, number 2028.
    44. Mika Rekola, 2003. "Lexicographic Preferences in Contingent Valuation: A Theoretical Framework with Illustrations," Land Economics, University of Wisconsin Press, vol. 79(2), pages 277-291.
    45. David Hensher & William Greene, 2003. "The Mixed Logit model: The state of practice," Transportation, Springer, vol. 30(2), pages 133-176, May.
    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. Schmid, Basil & Jokubauskaite, Simona & Aschauer, Florian & Peer, Stefanie & Hössinger, Reinhard & Gerike, Regine & Jara-Diaz, Sergio R. & Axhausen, Kay W., 2019. "A pooled RP/SP mode, route and destination choice model to investigate mode and user-type effects in the value of travel time savings," Transportation Research Part A: Policy and Practice, Elsevier, vol. 124(C), pages 262-294.
    2. Pavel CIAIAN & Sergio GOMEZ y PALOMA, 2011. "The Value of EU Agricultural Landscape," JRC Research Reports JRC65456, Joint Research Centre.
    3. Moser, Riccarda & Raffaelli, Roberta & Thilmany, Dawn D., 2011. "Consumer Preferences for Fruit and Vegetables with Credence-Based Attributes: A Review," International Food and Agribusiness Management Review, International Food and Agribusiness Management Association, vol. 14(2), pages 1-22, May.
    4. Ariane Kehlbacher & Kelvin Balcombe & Richard Bennett, 2013. "Stated Attribute Non-attendance in Successive Choice Experiments," Journal of Agricultural Economics, Wiley Blackwell, vol. 64(3), pages 693-706, September.
    5. Fredrik Carlsson & Mitesh Kataria & Elina Lampi, 2010. "Dealing with Ignored Attributes in Choice Experiments on Valuation of Sweden’s Environmental Quality Objectives," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 47(1), pages 65-89, September.
    6. Feyaerts, Hendrik & Maertens, Miet, 2021. "The Market for Onions or Lemons? Import Substitution and Consumer Preferences in Senegal," 2021 Conference, August 17-31, 2021, Virtual 315170, International Association of Agricultural Economists.
    7. Rulleau, Bénédicte & Dachary-Bernard, Jeanne, 2012. "Preferences, rational choices and economic valuation: Some empirical tests," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 41(2), pages 198-206.
    8. Mridu Prabal Goswami & Manipushpak Mitra & Debapriya Sen, 2022. "A Characterization of Lexicographic Preferences," Decision Analysis, INFORMS, vol. 19(2), pages 170-187, June.
    9. Wongprawmas, Rungsaran & Canavari, Maurizio, 2017. "Consumers’ willingness-to-pay for food safety labels in an emerging market: The case of fresh produce in Thailand," Food Policy, Elsevier, vol. 69(C), pages 25-34.
    10. Ivan Sever & Miroslav Verbič & Eva Klaric Sever, 2020. "Estimating Attribute-Specific Willingness-to-Pay Values from a Health Care Contingent Valuation Study: A Best–Worst Choice Approach," Applied Health Economics and Health Policy, Springer, vol. 18(1), pages 97-107, February.
    11. Rambonilaza, Tina, 2005. "Land-use planning and public preferences: What can we learn from choice experiments method?," MPRA Paper 9225, University Library of Munich, Germany, revised May 2007.
    12. Nesha Beharry-Borg & Riccardo Scarpa, 2010. "Researcher-Selected versus Respondent-Selected Attributes: Improved Coastal Water Quality in Tobago," Chapters, in: Jeff Bennett & Ekin Birol (ed.), Choice Experiments in Developing Countries, chapter 5, Edward Elgar Publishing.
    13. Banerji, A. & Chowdhury, Shyamal K. & de Groote, Hugo & Meenakshi, Jonnalagadda V. & Haleegoah, Joyce & Ewoo, Manfred, 2013. "Using elicitation mechanisms to estimate the demand for nutritious maize: Evidence from experiments in rural Ghana," HarvestPlus working papers 10, International Food Policy Research Institute (IFPRI).
    14. Meenakshi, J. V. & Banerji, A. & Manyong, Victor & Tomlins, Keith & Hamukwala, Priscilla & Zulu, Rodah & Mungoma, Catherine, 2010. "Consumer acceptance of provitamin A orange maize in rural Zambia:," HarvestPlus working papers 4, International Food Policy Research Institute (IFPRI).
    15. Pavel Ciaian & Sergio Gomez y Paloma, 2011. "Valuation of EU Agricultural Landscape," EERI Research Paper Series EERI_RP_2011_20, Economics and Econometrics Research Institute (EERI), Brussels.
    16. Galassi, Veronica & Madlener, Reinhard, 2014. "Identifying Business Models for Photovoltaic Systems with Storage in the Italian Market: A Discrete Choice Experiment," FCN Working Papers 19/2014, E.ON Energy Research Center, Future Energy Consumer Needs and Behavior (FCN).
    17. Kwak, So-Yoon & Yoo, Seung-Hoon & Kwak, Seung-Jun, 2010. "Valuing energy-saving measures in residential buildings: A choice experiment study," Energy Policy, Elsevier, vol. 38(1), pages 673-677, January.
    18. Admasu, Wubante Fetene & Van Passel, Steven & Nyssen, Jan & Minale, Amare Sewnet & Tsegaye, Enyew Adgo, 2021. "Eliciting farmers’ preferences and willingness to pay for land use attributes in Northwest Ethiopia: A discrete choice experiment study," Land Use Policy, Elsevier, vol. 109(C).
    19. Christoph, Inken B. & Peter, Guenter & Rothe, Andrea & Salamon, Petra & Weber, Sascha A. & Weible, Daniela, 2011. "School Milk Consumption in Germany - What are Important Product Attributes for Children and Parents?," 2011 International Congress, August 30-September 2, 2011, Zurich, Switzerland 114294, European Association of Agricultural Economists.
    20. Meenakshi, J.V. & Banerji, A. & Manyong, Victor & Tomlins, Keith & Mittal, Nitya & Hamukwala, Priscilla, 2012. "Using a discrete choice experiment to elicit the demand for a nutritious food: Willingness-to-pay for orange maize in rural Zambia," Journal of Health Economics, Elsevier, vol. 31(1), pages 62-71.

    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. Danny Campbell & W. George Hutchinson & Riccardo Scarpa, 2006. "Lexicographic Preferences in Discrete Choice Experiments: Consequences on Individual-Specific Willingness to Pay Estimates," Working Papers 2006.128, Fondazione Eni Enrico Mattei.
    2. Danny Campbell & W. Hutchinson & Riccardo Scarpa, 2008. "Incorporating Discontinuous Preferences into the Analysis of Discrete Choice Experiments," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 41(3), pages 401-417, November.
    3. Campbell, Danny, 2007. "Combining mixed logit models and random effects models to identify the determinants of willingness to pay for rural landscape improvements," 81st Annual Conference, April 2-4, 2007, Reading University, UK 7975, Agricultural Economics Society.
    4. Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Using mixed logit models to derive individual-specific WTP estimates for landscape improvements under agri-environmental schemes: evidence from the Rural Environment Protection Scheme in Ireland," Working Papers 0607, Rural Economy and Development Programme,Teagasc.
    5. Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Integrating landscape improvement indices and discrete choice experiments: evidence from the Rural Environment Protection Scheme in Ireland," Working Papers 0609, Rural Economy and Development Programme,Teagasc.
    6. Campbell, Danny & Hutchinson, W. George & Scarpa, Riccardo, 2006. "Using Discrete Choice Experiments to Derive Individual-Specific WTP Estimates for Landscape Improvements under Agri-Environmental Schemes: Evidence from the Rural Environment Protection Scheme in Irel," Sustainability Indicators and Environmental Valuation Working Papers 12220, Fondazione Eni Enrico Mattei (FEEM).
    7. Saelensminde, Kjartan, 2006. "Causes and consequences of lexicographic choices in stated choice studies," Ecological Economics, Elsevier, vol. 59(3), pages 331-340, September.
    8. Haghani, Milad & Bliemer, Michiel C.J. & Hensher, David A., 2021. "The landscape of econometric discrete choice modelling research," Journal of choice modelling, Elsevier, vol. 40(C).
    9. Kosenius, Anna-Kaisa, 2013. "Preference discontinuity in choice experiment: Determinants and implications," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 45(C), pages 138-145.
    10. Robert J. Johnston & Kevin J. Boyle & Wiktor (Vic) Adamowicz & Jeff Bennett & Roy Brouwer & Trudy Ann Cameron & W. Michael Hanemann & Nick Hanley & Mandy Ryan & Riccardo Scarpa & Roger Tourangeau & Ch, 2017. "Contemporary Guidance for Stated Preference Studies," Journal of the Association of Environmental and Resource Economists, University of Chicago Press, vol. 4(2), pages 319-405.
    11. Hoyos, David, 2010. "The state of the art of environmental valuation with discrete choice experiments," Ecological Economics, Elsevier, vol. 69(8), pages 1595-1603, June.
    12. Hoyos Ramos, David, 2010. "Using discrete choice experiments for environmental valuation," BILTOKI 1134-8984, Universidad del País Vasco - Departamento de Economía Aplicada III (Econometría y Estadística).
    13. Danny Campbell & George Hutchinson & Riccardo Scarpa, 2006. "Benefit Estimates For Landscape Improvements: Sequential Bayesian Design And Respondents’ Rationality In A Choice Experiment Study," Working Papers 0606, Rural Economy and Development Programme,Teagasc.
    14. Silvia Ferrini & Riccardo Scarpa, 2005. "Experimental Designs for Environmental Valuation with Choice-Experiments: A Monte-Carlo Investigation," Working Papers in Economics 05/08, University of Waikato.
    15. Yoo, James & Ready, Richard C., 2014. "Preference heterogeneity for renewable energy technology," Energy Economics, Elsevier, vol. 42(C), pages 101-114.
    16. Abildtrup, Jens & Garcia, Serge & Olsen, Søren Bøye & Stenger, Anne, 2013. "Spatial preference heterogeneity in forest recreation," Ecological Economics, Elsevier, vol. 92(C), pages 67-77.
    17. Rulleau, Bénédicte & Dachary-Bernard, Jeanne, 2012. "Preferences, rational choices and economic valuation: Some empirical tests," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 41(2), pages 198-206.
    18. Espinosa-Goded, Maria & Barreiro-Hurlé, Jesús & Ruto, Eric, 2009. "Modeling Farmers Prefences For Agrienvironmental Scheme Design: A Spanish Case Study," 2009 Conference, August 16-22, 2009, Beijing, China 50328, International Association of Agricultural Economists.
    19. Marit Kragt & Jeffrey Bennett, 2012. "Attribute Framing in Choice Experiments: How Do Attribute Level Descriptions Affect Value Estimates?," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 51(1), pages 43-59, January.

    More about this item

    JEL classification:

    • C35 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Discrete Regression and Qualitative Choice Models; Discrete Regressors; Proportions
    • Q24 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - Land
    • Q51 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Valuation of Environmental Effects

    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:tea:wpaper:0610. 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: John Lennon (email available below). General contact details of provider: https://edirc.repec.org/data/reteaie.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.