Nikolaj Broberg

Nikolaj Broberg

Economist

OECD

Hello and welcome to my website!

I am an applied economist working in the Structural Policy and Research Division of the OECD’s Economics Department.

Prior to joining the Economics Department, I was an analyst in the Directorate for Education and Skills and before that a Research Associate at the Migration Policy Centre at the Robert Schuman Centre for Advanced Studies.

I received my PhD from the European University Institute under the supervision of Andrea Ichino and Andrea Mattozzi in May 2022.

You can find my CV here.

Note: This is my personal webpage and the views expressed here do not necessarily reflect the official position of the OECD.

Publications

Working papers

Declining and diverging investment responsiveness to firm productivity

Business investment has weakened across OECD economies in recent decades. Using firm-level data for 17 OECD countries over 2003–2022, this paper documents a marked decline in the responsiveness of tangible investment to firm productivity following the Global Financial Crisis, with only a partial recovery thereafter, pointing to a weakening of capital reallocation toward more productive firms. The decline is broad-based across countries and sectors, holds after accounting for intangible investment, and is confirmed under an instrumental-variables strategy. Both frontier and non-frontier firms experienced a reduction in responsiveness, though the decline is larger and more persistent among non-frontier firms, while frontier firms proved more resilient. Partial-equilibrium counterfactuals suggest that maintaining pre-crisis responsiveness would translate into substantially higher aggregate investment and measurable productivity gains. Policy and market conditions shape how strongly investment responds to productivity. Responsiveness is weaker in sectors where firms depend more on external finance and in countries with less efficient insolvency regimes, the latter most apparent at the frontier. More concentrated markets are associated with lower responsiveness, particularly among non-frontier firms, whereas greater trade openness is associated with stronger responsiveness across the productivity distribution.

Essential Work, Migrant Labour: What Explains Migrant Employment in European Key Sectors?

Amidst the COVID-19 lockdowns, it became obvious that migrants play a critical role in economic sectors that are essential to the functioning of everyday life. Are they over-represented in these sectors, and how is the use of migrant labour linked to structural factors in the provision of essential services? Using micro data from the EU Labour Force Survey (EU-LFS) 2011-2020 for 17 countries, this paper investigates the extent and the drivers of migrants’ over-representation in key sectors (e.g. health, long-term care, food supply) relative to the rest of the economy. We measure the difference in the probability of working in key sectors for various types of migrants to similar natives across countries of destination. Our results show that in most countries, migrants are over-represented with respect to native-born workers after accounting for individual characteristics. We also provide an overview of the correlation between this residual over-representation and potential structural factors. We find a strong and robust correlation between migrants’ relative employment probability in key sectors and precarious job conditions, the degree of autonomy and flexibility at work, as well as attitudes to migrants, both at the country-level and across sub-national regions.

Work in progress

Policy work

IDR Macroeconomic imbalances - France 2014