“…In this issue, our articles pick up on several strands of political science and policy studies that have become staples in Politics & Policy' s fold over the last decade. Vivian Ike discusses policy change and implementation in Australia's Carbon Tax Policy that brings to mind past publications on similar subjects (see e.g., Brant, Myers, and Runge 2017; Lantis 2016). Extending his former discussions on the index of fluidity (Pelizzo and Nwokora 2016, 2018), Riccardo Pelizzo's article continues the important foray into how the institutionalization of parties intersects with claims concerning good governance, with empirical reference to Sub‐Saharan Africa.…”