Are Estimates of Non-Standard Employment Wage Penalties Robust to Different Wage Measures? The Case of Zero-hour Contracts in the UK
Peer reviewed, Journal article
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Original versionIndustrial Relations. 2021, 60 (3), 370-399. 10.1111/irel.12284
Evidence suggests that non-standard jobs are associated with wage penalties. Yet, these jobs possess a range of undesirable characteristics that should generate compensating wage differentials. This evidence relies on derived wage variables, prone to measurement error likely to be correlated with employment contract. Stated-rate hourly wage questions are not subjected to the same measurement issues. Using zero-hour contracts in the UK, we show that there is no conditional average ZHC wage penalty once stated-rate hourly wage measures are used. We discuss implications for policy.