Transition-specific formula (paper-aligned reduced specification):
series_transition_2016_2017_to_2018_2019 ~ Form(~edges + gwesp(0.25, 
    fixed = TRUE) + gwdegree(0.25, fixed = TRUE) + edgecov(proximity_mat_transition_2016_2017_to_2018_2019)) + 
    Persist(~edges + gwesp(0.25, fixed = TRUE) + gwdegree(0.25, 
        fixed = TRUE) + edgecov(proximity_mat_transition_2016_2017_to_2018_2019))

Removed from transition-specific models only:
- nodecov("evcent_lag_sqrt")
- absdiff("evcent_lag_sqrt")
- nodecov("tech_size_lag_sqrt")
- absdiff("tech_size_lag_sqrt")
- edgecov(history_*)

Kept in pooled overall model:
- full original specification
