I study how consumers, firms, markets, and policy affect technological change, with a goal of facilitating transitions to sustainable, low-carbon technologies. I have expertise in choice modeling, programming in R, and qualitative research methods, as well as the global electric vehicle industry.
logitr
: Fast Estimation of Multinomial and Mixed Logit Models with Preference Space and Willingness to Pay Space Utility Parameterizationsâ Under review.
logitr
: Fast Estimation of Multinomial and Mixed Logit Models with Preference Space and Willingness to Pay Space Utility Parameterizationsâ R package version 0.4.0.
Documentation
xaringanBuilder
: Functions For Building Xaringan Slides To Different Outputsâ R package version 0.0.9.
Documentation
conjointTools
: Tools For Designing Conjoint Survey Experimentsâ R package version 0.0.8.
Documentation
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Text and figures are licensed under Creative Commons Attribution CC BY-SA 4.0. Source code is available at https://github.com/jhelvy/jhelvy_distill, unless otherwise noted. The figures that have been reused from other sources don't fall under this license and can be recognized by a note in their caption: "Figure from ...".