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Data analysis Descriptive statistics (frequencies, percentages, means, and standard deviations) were used to summarize the survey data using SPSS statistical software version 26 (SPSS Inc., Chicago, USA)

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Next steps Apply the SCM to other states that implemented tobacco control programs after California (e.g., Massachusetts, Oregon) Explore heterogeneous effects by analyzing how the treatment effect varies across post-treatment years using rolling-window or recursive estimations Compare SCM estimates with difference-in-differences approaches applied to the same data Investigate conformal inference methods (Chernozhukov et al., 2021) for formal confidence intervals in the SCM framework 12

He recently spent the last four years with the Campbell Soup Company

Harrison specializes in a variety of mixed-use and multifamily development throughout Washington, D.C., North Carolina and Virginia primarily throughout metro Richmond