Adrian Lerche

I am a post-doctoral researcher at the Department of Economics at LMU Munich (academic year 2022/23) and a senior researcher at the Institute for Employment Research (IAB) in Nuremberg. I am also a Research Affiliate at the IZA Institute of Labor Economics. I received my PhD in Economics from Universitat Pompeu Fabra in Barcelona.

Labor Economics, Public Economics, Applied Microeconomics


LMU Munich
Department of Economics
Schackstr. 4
80539 Munich

CV (pdf)


Occupational Recognition and Immigrant Labor Market Outcomes
with Herbert Brücker, Albrecht Glitz, Agnese Romiti
Journal of Labor Economics, vol. 39, no. 2, 2021

We analyze how the formal recognition of foreign qualifications affects immigrants’ labor market outcomes. The empirical analysis is based on a novel German data set that links respondents’ survey information to their administrative records, allowing us to observe immigrants at monthly intervals before, during, and after their application for occupational recognition. We find that 3 years after obtaining recognition, immigrants earn 19.8% higher wages and are 24.5 percentage points more likely to be employed than immigrants in the control group. We further document that occupational recognition leads to full convergence of immigrants’ earnings to those of their native counterparts.

Social Inequality in the Homeschooling Efforts of German High School Students during a School Closing Period
with Hans Dietrich, Alexander Patzina
European Societies, vol. 23, sup1, 2021

School closings have been a key policy measure worldwide for reducing the spread of corona-virus disease (COVID-19). In Germany, federal states closed schools in mid-March and started to reopen them in late April. This policy potentially increased parental obligations for supervision and support during homeschooling and, thus, might reinforce social inequality in educational opportunities. Therefore, this research note investigates social inequality in students’ homeschooling efforts. Moreover, it asks whether social disparities in home learning environments, social support, teacher support, and cost–benefit-related considerations account for the social differences in homeschooling efforts during the school closing period in Germany. To that end, we use data from an ongoing research project on high school students in their final years that were collected during the school closing period. Our results show pronounced differences in home schooling efforts by social background. Thus far, the mechanisms under study can explain only a moderate part of the social origin effect. In summary, the results show that school closings have the potential to exacerbate social inequality in educational opportunities. Therefore, future research should scrutinise the extent to which school closings reinforce inequality in educational opportunities.

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Investment Tax Credits and the Response of Firms
IZA Discussion Paper, IAB Discussion Paper
Best Paper Award at Oxford Centre for Business Taxation Doctoral Conference 2019
IIPF Young Economists Award 2019
Revise & Resubmit American Economic Review

This paper estimates the direct effects of investment tax credits on firms’ production behavior and the additional indirect effects arising from agglomeration economies. Exploiting a change in tax credit rates by firm size in Germany, I find that manufacturing firms increase capital and employment, with labor demand in information and communication technology-intensive industries shifting towards college-educated workers. Using geolocation data, I show that agglomeration benefits lead to a sizable further firm production expansion with these benefits materializing within distances of 5 kilometers. Worker flows from the service sector and from non-employment, rather than between manufacturing firms, explain the employment effects.

Technological Change, Firm Heterogeneity and Wage Inequality
with Matias Cortes, Uta Schönberg, Jeanne Tschopp

We show that task-biased technological change is an important driver of the rise in between-establishment wage inequality in Germany. Using rich administrative social security data, we document that, within industries, establishments have become more heterogeneous in terms of their labor productivity, the share of abstract task workers that they hire, and the wages that they pay to workers in a given task. Moreover, within industries, more productive workplaces experience larger employment growth, larger increases in their abstract task share, and larger wage growth for both abstract and routine workers. We show that, within the context of a heterogeneous firm framework where firms differ in their technology of production, an aggregate task-biased shock is able to generate these patterns. In line with the predictions of the model, we find that industries with more ICT and robot adoption have experienced larger increases in worker sorting and between-establishment wage inequality within tasks.

Espionage-Based Knowledge Flows and Firm Outcomes
with Albrecht Glitz, Lukas Mergele

Economic espionage is a pervasive global phenomenon. We study how espionage-based knowledge flows alter the production structure and performance of firms in the perpetrating country. Exploiting a historical East German database that traces the flows of scientific-technical information from their sources in the West to their destinations in the East, we show that economic espionage during the Cold War increased firms' output and productivity. This positive impact is driven by intelligence reports internally assessed as valuable. We also show that a higher inflow of information in the past is associated with a higher likelihood of successful privatization following German reunification.

Helping High-School Students in Choosing Their Career: Experimental Evidence from a Large-Scale School Policy
with Silke Anger, Sarah Bernhard, Hans Dietrich, Alexander Patzina, Malte Sandner, Carina Toussaint
AEA RCT Registry AEARCTR-0004587

The Preference for College Education: The Role of Parents
with Malte Sandner

Firms’ Internet Access, ICT and Occupational Outcomes
with Sarra Ben Yahmed

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Abiturjahrgang 2020: Ohne Abiball zum Studium - allein am Bildschirm bricht die Lebenszufriedenheit ein
with Silke Anger, Sarah Bernhard, Hans Dietrich, Alexander Patzina, Malte Sandner, Carina Toussaint
IAB-Kurzbericht, 19/2021

Der Abiturjahrgang 2021 in Zeiten von Corona: Zukunftssorgen und psychische Belastungen nehmen zu
with Silke Anger, Sarah Bernhard, Hans Dietrich, Alexander Patzina, Malte Sandner, Carina Toussaint
IAB-Forum, 2021

Integration von Migrantinnen und Migranten in Deutschland: Anerkennung ausländischer Berufsabschlüsse hat positive Arbeitsmarkteffekte
with Herbert Brücker, Albrecht Glitz, Agnese Romiti
(based on refereed publication 'Occupational Recognition and Immigrant Labor Market Outcomes')
IAB-Kurzbericht, 02/2021

School Closings during the Covid-19 Pandemic: Findings from German High School Students
with Silke Anger, Sarah Bernhard, Hans Dietrich, Alexander Patzina, Malte Sandner, Carina Toussaint
IAB-Forum, 2020

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Technological Change and Labor Markets (LMU Munich)
The Labor Market Effects of New Technology (LMU Munich)

Data Science: Econometrics (FAU Nuremberg)

Current Policy Issues in Europe (University of Bamberg)
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