A decade of Hong Kong panel data (2011–2021): HKPSSD Phase II within a comparative Chinese Urban Research Program

The Hong Kong Panel Study of Social Dynamics (HKPSSD) is a city-wide, representative household panel survey designed to investigate social and economic dynamics in Hong Kong. Phase II (2017–2021) extended Phase I’s initial three waves by adding two additional waves (Waves 4–5), along with a second refreshment sample administered in between. Wave 4 (2017–2018) re-interviewed 2,000 households, comprising 3,407 adults and 412 children. In 2018–2019, Refreshment 2 was introduced, adding 840 households with 1,102 adults and 119 children. Wave 5 (2020–2021) adopted a mixed-mode design that combined self-administered online questionnaires with telephone interviews, comprising three rounds that re-contacted previously interviewed households (Wave 5, Rounds 1–3, abbreviated W5R1–W5R3) and one online refreshment sample (Refreshment 3). Spanning a decade from 2011 to 2021 across five waves, HKPSSD has produced a unique longitudinal dataset for studying social change, inequality, family and community, attitudes and identity in Hong Kong, and now constitutes an important resource for comparative urban studies with other major Chinese metropolises.