Impact of Korea's Non‐regular Worker Protection Act on job satisfaction

Exploiting the exogenous introduction of the Non‐regular Worker Protection Act on non‐regular workers, this paper examines the impact of this law's enactment on workers' job satisfaction. Using the Korea Labor and Income Panel Study, we apply a difference‐in‐differences method combined with propensity score matching to confirm the common trends assumption and construct a comparable control group. We investigate workers' job satisfaction in terms of the following categories: satisfaction with wages, satisfaction with job stability, satisfaction with working conditions, and overall satisfaction. Our results indicate positive effects of the Non‐regular Worker Protection Act on job satisfaction for all workers affected by the law, including those who converted from non‐regular employment to regular employment.