Climbing the Economic Ladder: Earnings Inequality and Intragenerational Mobility among Thai Formal Workers

Athiphat Muthitacharoen and Trongwut Burong

No 196, PIER Discussion Papers from Puey Ungphakorn Institute for Economic Research

Abstract: This paper investigates inequality and intragenerational economic mobility among formal workers in a developing country with large inequality. Understanding economic mobility is important because it shapes our perception of inequality. Despite its significance, evidence on intragenerational mobility, especially that based on administrative data, is relatively limited in developing countries. Using Thailand’s tax return data, we study the evolution of earnings inequality, estimate medium-term earnings mobility, and examine the heterogeneity of mobility across age, gender and employment arrangement. Our analysis yields three main findings. First, annual earnings inequality rises during the 2009–2018 period. We find that the inequality is largely permanent, and its increase is primarily driven by top-earnings workers. Second, medium-term mobility tends to be limited at both ends of the earnings distribution, with particularly pronounced persistence observed at the top decile. Our suggestive comparison indicates that Thailand’s earnings mobility is among the lowest in the pool of evidence from both developed and developing countries. Third, there is a considerable heterogeneity in mobility regarding employment arrangement. Workers in less-formal jobs have much lower upward mobility than those in more-formal employment. Our findings also indicate significant heterogeneity in mobility with respect to gender and age.

Keywords: Intragenerational earnings mobility; Inequality (search for similar items in EconPapers)
JEL-codes: D31 D63 H20 J31 J60 (search for similar items in EconPapers)
Pages: 36 pages
Date: 2023-01
New Economics Papers: this item is included in nep-dev, nep-lma, nep-pbe and nep-sea
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Journal Article: Climbing the economic ladder: Earnings inequality and intragenerational mobility among Thai formal workers (2023)
Working Paper: Climbing the Economic Ladder: Earnings Inequality and Intragenerational Mobility among Thai Formal Workers (2023)
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