IDEAS home Printed from https://ideas.repec.org/f/ppr362.html
   My authors  Follow this author

Allan Provins

Personal Details

First Name:Allan
Middle Name:
Last Name:Provins
Suffix:
RePEc Short-ID:ppr362

Affiliation

Economics for the Environment Consultancy (eftec)

http://www.eftec.co.uk/
London

Research output

as
Jump to: Working papers Articles

Working papers

  1. Bruno Lanz & Allan Provins, 2015. "Using discrete choice experiments to regulate the provision of water services: Do status quo choices reflect preferences?," CIES Research Paper series 35-2015, Centre for International Environmental Studies, The Graduate Institute.
  2. Bruno Lanz & Allan Provins, 2014. "The demand for tap water quality: Survey evidence on water hardness and aesthetic quality," CIES Research Paper series 23-2014, Centre for International Environmental Studies, The Graduate Institute.
  3. Bruno Lanz & Allan Provins, 2011. "Valuing Local Environmental Amenity with Discrete Choice Experiments: Spatial Scope Sensitivity and Heterogeneous Marginal Utility of Income," CEPE Working paper series 11-79, CEPE Center for Energy Policy and Economics, ETH Zurich.

Articles

  1. Bruno Lanz & Allan Provins, 2015. "Using discrete choice experiments to regulate the provision of water services: do status quo choices reflect preferences?," Journal of Regulatory Economics, Springer, vol. 47(3), pages 300-324, June.
  2. Antara Sen & Amii Harwood & Ian Bateman & Paul Munday & Andrew Crowe & Luke Brander & Jibonayan Raychaudhuri & Andrew Lovett & Jo Foden & Allan Provins, 2014. "Economic Assessment of the Recreational Value of Ecosystems: Methodological Development and National and Local Application," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 57(2), pages 233-249, February.
  3. Bruno Lanz & Allan Provins, 2013. "Valuing Local Environmental Amenity with Discrete Choice Experiments: Spatial Scope Sensitivity and Heterogeneous Marginal Utility of Income," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 56(1), pages 105-130, September.
  4. Peter Tyler & Colin Warnock & Allan Provins & Bruno Lanz, 2013. "Valuing the Benefits of Urban Regeneration," Urban Studies, Urban Studies Journal Limited, vol. 50(1), pages 169-190, January.
  5. Giles Atkinson & Sian Morse-Jones & Susana Mourato & Allan Provins, 2012. "‘When to Take “No” for an Answer’? Using Entreaties to Reduce Protests in Contingent Valuation Studies," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 51(4), pages 497-523, April.

Citations

Many of the citations below have been collected in an experimental project, CitEc, where a more detailed citation analysis can be found. These are citations from works listed in RePEc that could be analyzed mechanically. So far, only a minority of all works could be analyzed. See under "Corrections" how you can help improve the citation analysis.

Working papers

  1. Bruno Lanz & Allan Provins, 2015. "Using discrete choice experiments to regulate the provision of water services: Do status quo choices reflect preferences?," CIES Research Paper series 35-2015, Centre for International Environmental Studies, The Graduate Institute.

    Cited by:

    1. Boxebeld, Sander, 2024. "Ordering effects in discrete choice experiments: A systematic literature review across domains," Journal of choice modelling, Elsevier, vol. 51(C).
    2. Bruno Lanz & Allan Provins, 2016. "Using averting expenditures to estimate the demand for public goods: Combining objective and perceived quality," IRENE Working Papers 16-06, IRENE Institute of Economic Research.
    3. Oehlmann, Malte & Weller, Priska & Meyerhoff, Jürgen, 2014. "Complexity-induced Status Quo Effects in Discrete Choice Experiments for Environmental Valutation," VfS Annual Conference 2014 (Hamburg): Evidence-based Economic Policy 100616, Verein für Socialpolitik / German Economic Association.
    4. Bruno Lanz & Allan Provins, 2014. "The demand for tap water quality: Survey evidence on water hardness and aesthetic quality," CIES Research Paper series 23-2014, Centre for International Environmental Studies, The Graduate Institute.
    5. Murwirapachena, Genius & Dikgang, Johane, 2018. "An empirical examination of reducing status quo bias in heterogeneous populations: evidence from the South African water sector," MPRA Paper 91549, University Library of Munich, Germany.
    6. Shi, Wei & Halstead, John M. & Huang, Ju-Chin, 2017. "Market Experience Matters: Status Quo Effect in the Economic Valuation of Consumer Preferences for Local Produce," 2017 Annual Meeting, July 30-August 1, Chicago, Illinois 258290, Agricultural and Applied Economics Association.
    7. Oehlmann, Malte & Meyerhoff, Jürgen & Mariel, Petr & Weller, Priska, 2017. "Uncovering context-induced status quo effects in choice experiments," Journal of Environmental Economics and Management, Elsevier, vol. 81(C), pages 59-73.

  2. Bruno Lanz & Allan Provins, 2014. "The demand for tap water quality: Survey evidence on water hardness and aesthetic quality," CIES Research Paper series 23-2014, Centre for International Environmental Studies, The Graduate Institute.

    Cited by:

    1. Bruno Lanz & Allan Provins, 2016. "Using averting expenditures to estimate the demand for public goods: Combining objective and perceived quality," IRENE Working Papers 16-06, IRENE Institute of Economic Research.
    2. Anna-Maria Aksan & William F. Vásquez, 2019. "Quality Perceptions and Water Treatment Behavior at the Household Level," Water Economics and Policy (WEP), World Scientific Publishing Co. Pte. Ltd., vol. 5(03), pages 1-33, July.
    3. Józef Ober & Janusz Karwot, 2021. "Tap Water Quality: Seasonal User Surveys in Poland," Energies, MDPI, vol. 14(13), pages 1-22, June.
    4. Robert Hahn & Robert Metcalfe & Florian Rundhammer, 2020. "Promoting customer engagement: A new trend in utility regulation," Regulation & Governance, John Wiley & Sons, vol. 14(1), pages 121-149, January.
    5. Vanaja, Shiuli, 2021. "Are People Making Correct Choices? Drivers of Water Source Choices in Rural Jharkhand, India," 2021 Conference, August 17-31, 2021, Virtual 315156, International Association of Agricultural Economists.

  3. Bruno Lanz & Allan Provins, 2011. "Valuing Local Environmental Amenity with Discrete Choice Experiments: Spatial Scope Sensitivity and Heterogeneous Marginal Utility of Income," CEPE Working paper series 11-79, CEPE Center for Energy Policy and Economics, ETH Zurich.

    Cited by:

    1. Boxebeld, Sander, 2024. "Ordering effects in discrete choice experiments: A systematic literature review across domains," Journal of choice modelling, Elsevier, vol. 51(C).
    2. Fedrigotti Valérie Bossi & Troiano Stefania & Fischer Christian & Marangon Francesco, 2020. "Public Preferences for Farmed Landscapes: the Case of Traditional Chestnut Orchards in South Tyrol," European Countryside, Sciendo, vol. 12(1), pages 99-118, March.
    3. Julia Bronnmann & Veronika Liebelt & Fabian Marder & Jasper Meya & Martin Quaas, 2023. "The Value of Naturalness of Urban Green Spaces: Evidence from a Discrete Choice Experiment," Land Economics, University of Wisconsin Press, vol. 99(4), pages 528-542.
    4. Jie He & Anping Huang & Luodan Xu, 2015. "Spatial heterogeneity and transboundary pollution: a contingent valuation study on the Xijiang River drainage basin in south China," Cahiers de recherche 15-04, Departement d'économique de l'École de gestion à l'Université de Sherbrooke.
    5. George Halkos & Panagiotis Stavros Aslanidis & Angelos Plataniotis & Phoebe Koundouri, 2024. "Global insights on Sustainable Development Goal 14: Reviewing willingness-to-pay levels for marine ecosystem protection and conservation," DEOS Working Papers 2416, Athens University of Economics and Business.
    6. Interis, Matthew G., 2014. "A Challenge to Three Widely Held Ideas," Journal of Agricultural and Applied Economics, Southern Agricultural Economics Association, vol. 46(3), pages 1-10, August.
    7. Schaeffer, Y. & Dissart, J.-C., 2018. "Natural and Environmental Amenities: A Review of Definitions, Measures and Issues," Ecological Economics, Elsevier, vol. 146(C), pages 475-496.
    8. Wei-Bin Zhang, 2017. "Multi-Regional Growth, Agglomeration and Land Values in a Generalized Heckscher-Ohlin Trade Model," Eastern European Business and Economics Journal, Eastern European Business and Economics Studies Centre, vol. 3(3), pages 270-305.
    9. Cristiano Franceschinis & Riccardo Scarpa & Mara Thiene & John Rose & Michele Moretto & Raffaele Cavalli, 2016. "Exploring the Spatial Heterogeneity of Individual Preferences for Ambient Heating Systems," Energies, MDPI, vol. 9(6), pages 1-19, May.
    10. Catalina M. Torres & Sergio Colombo & Nick Hanley, 2014. "Incorrectly accounting for preference heterogeneity in choice experiments: what are the implications for welfare measurement?," DEA Working Papers 65, Universitat de les Illes Balears, Departament d'Economía Aplicada.
    11. Velvart, Joëlle & Dato, Prudence & Kuhlmey, Florian, 2022. "Tailored interventions in a major life decision: A home relocation discrete choice experiment," Working papers 2022/03, Faculty of Business and Economics - University of Basel.
    12. Bertram, Christine & Rehdanz, Katrin, 2015. "The role of urban green space for human well-being," Ecological Economics, Elsevier, vol. 120(C), pages 139-152.
    13. Sauthoff, Saramena & Anastassiadis, Friederike & Mußhoff, Oliver, 2015. "Analyzing farmers’ preferences for substrate supply contracts for sugar beets," Department of Agricultural and Rural Development (DARE) Discussion Papers 260783, Georg-August-Universitaet Goettingen, Department of Agricultural Economics and Rural Development (DARE).

Articles

  1. Bruno Lanz & Allan Provins, 2015. "Using discrete choice experiments to regulate the provision of water services: do status quo choices reflect preferences?," Journal of Regulatory Economics, Springer, vol. 47(3), pages 300-324, June.
    See citations under working paper version above.
  2. Antara Sen & Amii Harwood & Ian Bateman & Paul Munday & Andrew Crowe & Luke Brander & Jibonayan Raychaudhuri & Andrew Lovett & Jo Foden & Allan Provins, 2014. "Economic Assessment of the Recreational Value of Ecosystems: Methodological Development and National and Local Application," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 57(2), pages 233-249, February.

    Cited by:

    1. Hermes, Johannes & Albert, Christian & von Haaren, Christina, 2018. "Assessing the aesthetic quality of landscapes in Germany," Ecosystem Services, Elsevier, vol. 31(PC), pages 296-307.
    2. De Valck, Jeremy & Beames, Alistair & Liekens, Inge & Bettens, Maarten & Seuntjens, Piet & Broekx, Steven, 2019. "Valuing urban ecosystem services in sustainable brownfield redevelopment," Ecosystem Services, Elsevier, vol. 35(C), pages 139-149.
    3. Sonter, Laura J. & Johnson, Justin A. & Nicholson, Charles C. & Richardson, Leif L. & Watson, Keri B. & Ricketts, Taylor H., 2017. "Multi-site interactions: Understanding the offsite impacts of land use change on the use and supply of ecosystem services," Ecosystem Services, Elsevier, vol. 23(C), pages 158-164.
    4. Nielsen, Anne Sofie Elberg & Lundhede, Thomas Hedemark & Jacobsen, Jette Bredahl, 2016. "Local consequences of national policies - A spatial analysis of preferences for forest access reduction," Forest Policy and Economics, Elsevier, vol. 73(C), pages 68-77.
    5. Huber, Christopher & Meldrum, James & Richardson, Leslie, 2018. "Improving confidence by embracing uncertainty: A meta-analysis of U.S. hunting values for benefit transfer," Ecosystem Services, Elsevier, vol. 33(PB), pages 225-236.
    6. Reynaud, Arnaud & Lanzanova, Denis & Liquete, Camino & Grizzetti, Bruna, 2017. "Going green? Ex-post valuation of a multipurpose water infrastructure in Northern Italy," Ecosystem Services, Elsevier, vol. 27(PA), pages 70-81.
    7. Richard Yao & David Palmer & Barbara Hock & Duncan Harrison & Tim Payn & Juan Monge, 2019. "Forest Investment Framework as a Support Tool for the Sustainable Management of Planted Forests," Sustainability, MDPI, vol. 11(12), pages 1-22, June.
    8. Léa Tardieu & Laetitia Tufféry, 2019. "From supply to demand factors : what are the determinants of attractiveness for outdoor recreation?," Post-Print hal-02883545, HAL.
    9. Hermes, Johannes & von Haaren, Christina & Schmücker, Dirk & Albert, Christian, 2021. "Nature-based recreation in Germany: Insights into volume and economic significance," Ecological Economics, Elsevier, vol. 188(C).
    10. De Salvo, Maria & Signorello, Giovanni, 2015. "Non-market valuation of recreational services in Italy: A meta-analysis," Ecosystem Services, Elsevier, vol. 16(C), pages 47-62.
    11. Tardieu, Léa & Tuffery, Laëtitia, 2019. "From supply to demand factors: What are the determinants of attractiveness for outdoor recreation?," Ecological Economics, Elsevier, vol. 161(C), pages 163-175.
    12. Anna Széchy & Zsuzsanna Szerényi, 2023. "Valuing the Recreational Services Provided by Hungary’s Forest Ecosystems," Sustainability, MDPI, vol. 15(5), pages 1-16, February.
    13. Trudy Ann Cameron & Sonja H. Kolstoe, 2022. "Using Auxiliary Population Samples for Sample-Selection Correction in Models Based on Crowd-Sourced Volunteered Geographic Information," Land Economics, University of Wisconsin Press, vol. 98(1), pages 1-21.
    14. Bayliss, Julian & Schaafsma, Marije & Balmford, Andrew & Burgess, Neil D. & Green, Jonathan M.H. & Madoffe, Seif S. & Okayasu, Sana & Peh, Kelvin S.-H. & Platts, Philip J. & Yu, Douglas W., 2014. "The current and future value of nature-based tourism in the Eastern Arc Mountains of Tanzania," Ecosystem Services, Elsevier, vol. 8(C), pages 75-83.
    15. Valentino Dardanone & Carla Guerriero, 2019. "Children's Willingness to Pay for Environmental Protection," CSEF Working Papers 550, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy.
    16. Dardanoni, Valentino & Guerriero, Carla, 2021. "Young people' s willingness to pay for environmental protection," Ecological Economics, Elsevier, vol. 179(C).
    17. Schägner, Jan Philipp & Brander, Luke & Paracchini, Maria Luisa & Maes, Joachim & Gollnow, Florian & Bertzky, Bastian, 2018. "Spatial dimensions of recreational ecosystem service values: A review of meta-analyses and a combination of meta-analytic value-transfer and GIS," Ecosystem Services, Elsevier, vol. 31(PC), pages 395-409.
    18. Léa Tardieu, 2017. "The need for integrated spatial assessments in ecosystem service mapping," Review of Agricultural, Food and Environmental Studies, Springer, vol. 98(3), pages 173-200, December.
    19. Everard, Mark, 2016. "Community-based groundwater and ecosystem restoration in semi-arid north Rajasthan (2): Reviving cultural meaning and value," Ecosystem Services, Elsevier, vol. 18(C), pages 33-44.

  3. Bruno Lanz & Allan Provins, 2013. "Valuing Local Environmental Amenity with Discrete Choice Experiments: Spatial Scope Sensitivity and Heterogeneous Marginal Utility of Income," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 56(1), pages 105-130, September.
    See citations under working paper version above.
  4. Peter Tyler & Colin Warnock & Allan Provins & Bruno Lanz, 2013. "Valuing the Benefits of Urban Regeneration," Urban Studies, Urban Studies Journal Limited, vol. 50(1), pages 169-190, January.

    Cited by:

    1. Cristina Mateos-Mora & María Rosa Herrera-Gutiérrez & Cristina González-Benítez, 2021. "The Impacts of Area-Based Policies on Essential Retail in Vulnerable Areas," Sustainability, MDPI, vol. 13(14), pages 1-17, July.
    2. Kevin Dean & Claudia Trillo & Erik Bichard, 2017. "Assessing the Value of Housing Schemes through Sustainable Return on Investment: A Path towards Sustainability-Led Evaluations?," Sustainability, MDPI, vol. 9(12), pages 1-19, December.
    3. Bruno Lanz & Allan Provins, 2013. "Valuing Local Environmental Amenity with Discrete Choice Experiments: Spatial Scope Sensitivity and Heterogeneous Marginal Utility of Income," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 56(1), pages 105-130, September.
    4. Ghadiri, Mohaddese & Sarrafi, Mozaffar, 2022. "Integrating support groups, an effective approach to regenerate historic neighborhoods of Iran Case study: Oudlajan Neighborhood, Tehran," Land Use Policy, Elsevier, vol. 112(C).
    5. Aarland, Kristin & Osland, Liv & Gjestland, Arnstein, 2017. "Do area-based intervention programs affect house prices? A quasi-experimental approach," Journal of Housing Economics, Elsevier, vol. 37(C), pages 67-83.
    6. Jin Hui Lee & Sangyon Lim, 2018. "An Analytic Hierarchy Process (AHP) Approach for Sustainable Assessment of Economy-Based and Community-Based Urban Regeneration: The Case of South Korea," Sustainability, MDPI, vol. 10(12), pages 1-14, November.
    7. Paul Lawless & Henry G. Overman & Peter Tyler, 2011. "Strategies for Underperforming Places," SERC Policy Papers 006, Centre for Economic Performance, LSE.
    8. Huub Ploegmakers & Pascal Beckers, 2015. "Evaluating urban regeneration: An assessment of the effectiveness of physical regeneration initiatives on run-down industrial sites in the Netherlands," Urban Studies, Urban Studies Journal Limited, vol. 52(12), pages 2151-2169, September.
    9. Lupton, Ruth & Arque, Amanda, 2015. "The Coalition's record on area regeneration and neighbourhood renewal: policy, spending and outcomes 2010-2015," LSE Research Online Documents on Economics 121534, London School of Economics and Political Science, LSE Library.
    10. Mike Chadwick & Peter Tyler & Colin Warnock, 2013. "How to raise the bar on impact evaluation: Challenges for the evaluation of local enterprise partnerships and the regional growth fund in times of austerity," Local Economy, London South Bank University, vol. 28(7-8), pages 842-851, November.
    11. Jasper Beekmans & Huub Ploegmakers & Karel Martens & Erwin van der Krabben, 2016. "Countering decline of industrial sites: Do local economic development policies target the neediest places?," Urban Studies, Urban Studies Journal Limited, vol. 53(14), pages 3027-3047, November.
    12. Meng Yuan & Hongjuan Wu, 2024. "Positive or Negative: The Heterogeneities in the Effects of Urban Regeneration on Surrounding Economic Vitality—From the Perspective of Housing Price," Land, MDPI, vol. 13(5), pages 1-27, May.
    13. Egan, Matt & Kearns, Ade & Katikireddi, Srinivasa V. & Curl, Angela & Lawson, Kenny & Tannahill, Carol, 2016. "Proportionate universalism in practice? A quasi-experimental study (GoWell) of a UK neighbourhood renewal programme's impact on health inequalities," Social Science & Medicine, Elsevier, vol. 152(C), pages 41-49.
    14. Melissa Butcher & Luke Dickens, 2016. "Spatial Dislocation and Affective Displacement: Youth Perspectives on Gentrification in London," International Journal of Urban and Regional Research, Wiley Blackwell, vol. 40(4), pages 800-816, July.

  5. Giles Atkinson & Sian Morse-Jones & Susana Mourato & Allan Provins, 2012. "‘When to Take “No” for an Answer’? Using Entreaties to Reduce Protests in Contingent Valuation Studies," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 51(4), pages 497-523, April.

    Cited by:

    1. Miguel Ángel Tobarra-González, 2015. "A new recoding method for treating protest responses in contingent valuation studies using travel cost data," Journal of Environmental Planning and Management, Taylor & Francis Journals, vol. 58(8), pages 1479-1489, August.
    2. Dominique Ami & Frédéric Aprahamian & Olivier Chanel & Stéphane Luchini, 2011. "A Test of Cheap Talk in Different Hypothetical Contexts: The Case of Air Pollution," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 50(1), pages 111-130, September.
    3. 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.
    4. Villanueva, Anastasio J. & Glenk, Klaus & Rodriguez-Entrena, M., 2016. "Serial non-participation and ecosystem services providers’ preferences towards incentive-based schemes," 90th Annual Conference, April 4-6, 2016, Warwick University, Coventry, UK 236348, Agricultural Economics Society.
    5. Kontogianni, Areti & Tourkolias, Christos & Skourtos, Michalis, 2013. "Renewables portfolio, individual preferences and social values towards RES technologies," Energy Policy, Elsevier, vol. 55(C), pages 467-476.
    6. Melville Saayman & Andrea Saayman, 2014. "Who is Willing to Pay to See the Big 7?," Tourism Economics, , vol. 20(6), pages 1181-1198, December.
    7. Tanya O'Garra & Susana Mourato, 2016. "Are we willing to give what it takes? Willingness to pay for climate change adaptation in developing countries," Journal of Environmental Economics and Policy, Taylor & Francis Journals, vol. 5(3), pages 249-264, September.
    8. Tobarra-González, Miguel Angel, 2014. "Valoración del Parque Natural de Calblanque y tratamiento de respuestas protesta," Economia Agraria y Recursos Naturales, Spanish Association of Agricultural Economists, vol. 14(01), pages 1-24, June.
    9. Moritz A. Drupp & Zachary M. Turk & Ben Groom & Jonas Heckenhahn, 2024. "Limited Substitutability, Relative Price Changes and the Uplifting of Public Natural Capital Values," CESifo Working Paper Series 11156, CESifo.
    10. Lewis, David J. & Provencher, Bill & Beardmore, Ben, 2015. "Using an intervention framework to value salient ecosystem services in a stated preference experiment," Ecological Economics, Elsevier, vol. 114(C), pages 141-151.

More information

Research fields, statistics, top rankings, if available.

Statistics

Access and download statistics for all items

Co-authorship network on CollEc

NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 4 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.
  1. NEP-DCM: Discrete Choice Models (3) 2011-10-01 2012-10-20 2015-03-05
  2. NEP-AGR: Agricultural Economics (2) 2014-05-17 2015-03-05
  3. NEP-ENV: Environmental Economics (1) 2011-10-01
  4. NEP-MFD: Microfinance (1) 2015-03-05
  5. NEP-REG: Regulation (1) 2015-03-05
  6. NEP-TUR: Tourism Economics (1) 2011-10-01
  7. NEP-UPT: Utility Models and Prospect Theory (1) 2012-10-20
  8. NEP-URE: Urban and Real Estate Economics (1) 2011-10-01

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, Allan Provins 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.

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