Intra-Country Wage Inequality in the OECD Countries

Manuel Carlos Nogueira () and Óscar Afonso ()

Panoeconomicus, 2018, vol. 65, issue 3, 339-362

Abstract: Two reasons are mainly brought to explain the recent increase in intra-country wage inequality in favour of high-skilled labour: Skill-Biased Technological Change (SBTC) and International Trade Liberalisation (IT). Since few empirical studies have attempted to assess both interpretations across a comprehensive sample of countries, we have analysed the impact of both and added some new variables within a unified framework and across 30 OECD countries, between 2001 and 2015. Using panel data, results show that both explanations are crucial. However, considering all 30 OECD countries, the IT argument dominates. Further, we show that seven clusters must be considered in which at least one theory influence the wage gap. Key words: Skill-biased technological change, International trade, Immigration, Education, Wage inequality, Cluster analysis. JEL: C23, F41, J31, O33, O50. Dva razloga uglavnom objašnjavaju rastuće povećanje nejednakosti zarada unutar zemalja u korist visoko-kvalifikovanih radnika: tehnološke promene zasnovane na veštinama (SBCT) i međunarodna trgovinska liberalizacija (IT). Budući da je nekoliko empirijskih studija pokušalo da proceni oba tumačenja preko sveobuhvatnog uzorka zemalja, mi smo analizirali oba uticaja i dodali neke nove varijable u jedinstveni okvir od 30 zemalja OECD-a, između 2001. i 2015. godine. Koristeći podatke panela, rezultati pokazuju da su oba objašnjenja od presudnog značaja. Međutim, posmatrajući svih 30 zemalja OECD-a, IT argumenti dominiraju. Dalje, pokazujemo da sedam klastera mora da se razmatra u kojima najmanje jedna teorija utiču na razliku u zaradama. Ključne reči: Tehnološke promene zasnovane na veštinama, međunarodna trgovina, imigracije, obrazovanje, nejednakost zarada, klaster analiza.

Keywords: Skill-biased technological change; International trade; Immigration; Education; Wage inequality; Cluster analysis (search for similar items in EconPapers)
Date: 2018
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