Photo Edouard Civel

Edouard Civel

Jeunes docteurs et ATER
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  • Research group

      Développement Durable, Environnement et Energie

  • Theme(s)
    • Prise de décision et incertitude
    • Performance thermique
    • Imperfection et asymétries d'information

2018-35 "Green, yellow or red lemons? Framed field experiment on houses energy labels perception."

Edouard Civel, Nathaly Cruz-Garcia

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Abstract
Labels are increasingly popular among policy-makers, companies and NGOs to improve consumers awareness, especially about environmental footprints. Yet, the efficiency of these informational tools is mostly looked as their ability to shift behaviors, whereas their first goal is to enable people to discriminate labelled goods. This paper studies how the complex information displayed by houses' Energy Performance Certificates is processed by real economic agents. Through a randomized framed field experiment on 3,000 French subjects, we test the impact of these labels on people's perception of a home energy performance.

Results evidence that 24% of subjects did not take heed of the energy label. Unexpectedly, we find out that gender is the most differentiating characteristic in this changing sensitivity to energy performance certificates. We interpret this effect by the Selectivity Hypothesis: energy labels design engages more male subjects.

Among sensitive subjects, energy labels' efficiency to transmit information is mixed, as our results indicate a Bayesian reading of houses energy labels. Subjects identify separately each label's grades, and their perception is not systematically biased by individual characteristics, but idiosyncratic features blur their judgment. Moreover, this perception exhibits strong asymmetries. While worsening grades induce decreasing judgments, upgrading label's class do not strongly enhance people's evaluation of energy quality: on the contrary, top level quality label seems to undergo skepticism and intensifies idiosyncratic noise.
Classification-JEL
D03 ; D12 ; D83 ; L15.
Mot(s) clé(s)
Information treatment ; Experimental economics ; Cognitive psychology ; Green Value ; Energy efficiency.
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2018-47 "The Fate of Inventions. What can we learn from Bayesian learning in strategic options model of adoption ?"

Marc Baudry, Edouard Civel

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Abstract
We develop a game where heterogeneous agents have the option of adopting an invention of uncertain quality or postponing their decision to benefit from others' experience through Bayesian learning. Messages produced on the invention nature are noisy, representing the "teething troubles" of innovation. Our model gives microeconomic foundations to the S-shaped innovation diffusion curves, informational externality inducing strategic delay in agents' behavior. Moreover, noise could nip in the bud the diffusion of inventions: numerical simulations underline a bi-modal distribution of steady states for innovation diffusion, stillborn or fully developed, bringing to light a reputational valley of death for inventions.
Classification-JEL
O33 ; L15 ; D83 ; C73.
Mot(s) clé(s)
Innovation diffusion ; Invention adoption ; Information ; Strategic options ; Bayesian learning.
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