The Impact of Human Capital Accumulation on EBIT Margins: A Panel Data Study

This thesis investigates the critical relationship between labour intensity, the ratio of labour costs to total revenue, and operating margins. This thesis puts a focus on the following four sectors: IT, automotive, banking, and retail. By analysing an eleven-year panel dataset from 2014 to 2024, the research identifies a significant "sensitivity gap" in how different sectors transform human capital into profitability. While all sectors show that higher labour intensity correlates with lower margins, the IT sector exhibits a disproportionately high sensitivity coefficient. In the IT sector, reducing labour cost leads to increased profit margins. The change in profit margins is far higher than in the other three sectors. The research concludes that in the modern digital economy, the rigorous management of labour efficiency, rather than the mere accumulation of human capital, serves as the primary driver of corporate value creation.