Template-type: ReDIF-Paper 1.0 Author-Name: Yann Dorville Author-Name: Francesco Filippucci Author-Name: Luca Marcolin Title: How do structural trends affect labour shortages and mismatch? Abstract: This paper examines how AI and digital technology diffusion, the green transition, globalisation and population ageing jointly affect labour market tightness across 26 OECD countries and 34 sectors. It finds that digitalisation and decarbonisation increase tightness, while ageing does so only over time. Import competition and labour-substituting AI diffusion, conversely, reduce shortages. Classification-JEL: J21; J23; J24; O33 Keywords: ageing, labour market tightness, labour shortages, skill shortages, technological change Creation-Date: 2025-12-23 Number: 38 Handle: RePEc:oec:ecoaac:38-EN