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Experimental auctions, collective induction and choice shift: willingness-to-pay for rice quality in Senegal

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Abstract
We propose a collective induction treatment as an aggregator of information and preferences, which enables testing whether consumer preferences for food quality elicited through experimental auctions are robust to aggregation. We develop a two-stage estimation method based on social judgement scheme theory to identify the determinants of social influence in collective induction. Our method is tested in a market experiment aiming to assess consumers willingness-to-pay for rice quality in Senegal. No significant choice shift was observed after collective induction, which suggests that consumer preferences for rice quality are robust to aggregation. Almost three quarters of social influence captured by the model and the variables was explained by social status, market expertise and information.
Keywords
word-of mouth communication, Sharpe style weights, C24, C91, C92, D12, D71, WORD-OF-MOUTH, GROUP DECISION-MAKING, GROUP POLARIZATION, CONSUMER PREFERENCES, SENSORY EVALUATION, SOCIAL NETWORKS, VALUATION, INFORMATION, DIFFUSION, FOOD, group decision-making, social decision schemes, Vickrey auctions

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MLA
Demont, Matty, Pieter Rutsaert, Maïmouna Ndour, et al. “Experimental Auctions, Collective Induction and Choice Shift: Willingness-to-pay for Rice Quality in Senegal.” EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS 40.2 (2013): 261–286. Print.
APA
Demont, M., Rutsaert, P., Ndour, M., Verbeke, W., Seck, P. A., & Tollens, E. (2013). Experimental auctions, collective induction and choice shift: willingness-to-pay for rice quality in Senegal. EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS, 40(2), 261–286.
Chicago author-date
Demont, Matty, Pieter Rutsaert, Maïmouna Ndour, Wim Verbeke, Papa A Seck, and Eric Tollens. 2013. “Experimental Auctions, Collective Induction and Choice Shift: Willingness-to-pay for Rice Quality in Senegal.” European Review of Agricultural Economics 40 (2): 261–286.
Chicago author-date (all authors)
Demont, Matty, Pieter Rutsaert, Maïmouna Ndour, Wim Verbeke, Papa A Seck, and Eric Tollens. 2013. “Experimental Auctions, Collective Induction and Choice Shift: Willingness-to-pay for Rice Quality in Senegal.” European Review of Agricultural Economics 40 (2): 261–286.
Vancouver
1.
Demont M, Rutsaert P, Ndour M, Verbeke W, Seck PA, Tollens E. Experimental auctions, collective induction and choice shift: willingness-to-pay for rice quality in Senegal. EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS. 2013;40(2):261–86.
IEEE
[1]
M. Demont, P. Rutsaert, M. Ndour, W. Verbeke, P. A. Seck, and E. Tollens, “Experimental auctions, collective induction and choice shift: willingness-to-pay for rice quality in Senegal,” EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS, vol. 40, no. 2, pp. 261–286, 2013.
@article{3188248,
  abstract     = {{We propose a collective induction treatment as an aggregator of information and preferences, which enables testing whether consumer preferences for food quality elicited through experimental auctions are robust to aggregation. We develop a two-stage estimation method based on social judgement scheme theory to identify the determinants of social influence in collective induction. Our method is tested in a market experiment aiming to assess consumers willingness-to-pay for rice quality in Senegal. No significant choice shift was observed after collective induction, which suggests that consumer preferences for rice quality are robust to aggregation. Almost three quarters of social influence captured by the model and the variables was explained by social status, market expertise and information.}},
  author       = {{Demont, Matty and Rutsaert, Pieter and Ndour, Maïmouna and Verbeke, Wim and Seck, Papa A and Tollens, Eric}},
  issn         = {{0165-1587}},
  journal      = {{EUROPEAN REVIEW OF AGRICULTURAL ECONOMICS}},
  keywords     = {{word-of mouth communication,Sharpe style weights,C24,C91,C92,D12,D71,WORD-OF-MOUTH,GROUP DECISION-MAKING,GROUP POLARIZATION,CONSUMER PREFERENCES,SENSORY EVALUATION,SOCIAL NETWORKS,VALUATION,INFORMATION,DIFFUSION,FOOD,group decision-making,social decision schemes,Vickrey auctions}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{261--286}},
  title        = {{Experimental auctions, collective induction and choice shift: willingness-to-pay for rice quality in Senegal}},
  url          = {{http://dx.doi.org/10.1093/erae/jbs021}},
  volume       = {{40}},
  year         = {{2013}},
}

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