25 Jahre IWH

Professor Florian Hoffmann, Ph.D.

Aktuelle Position


seit 12/16

Research Fellow der Abteilung Strukturwandel und Produktivität

Leibniz-Institut für Wirtschaftsforschung Halle (IWH)

seit 07/10

Assistant Professor

Vancouver School of Economics


  • Humankapital
  • dynamische allgemeine Gleichgewichtsmodelle

Florian Hoffmann ist seit Dezember 2016 Research Fellow am IWH. Seine Forschungsinteressen umfassen Bestimmungsgrößen für Lebenszyklus-Einkommen und Karrieredynamik, dynamische diskrete Entscheidungsmodelle für Humankapitalbildung, die Einschätzung von Gleichgewichtssuchmodellen und die Bedeutung der Interaktionen zwischen Student und Lehrer für akademische Leistungen in der Hochschulbildung.

Seit Juli 2010 ist Florian Hoffmann Assistant Professor an der Vancouver School of Economics. Er promovierte an der University of Toronto.

Ihr Kontakt

Professor Florian Hoffmann, Ph.D.
Mitglied - Abteilung Strukturwandel und Produktivität
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Complex-task biased technological change and the labor market

Colin Caines Florian Hoffmann Gueorgui Kambourov

in: Review of Economic Dynamics , 2017


In this paper we study the relationship between task complexity and the occupational wage- and employment structure. Complex tasks are defined as those requiring higher-order skills, such as the ability to abstract, solve problems, make decisions, or communicate effectively. We measure the task complexity of an occupation by performing Principal Component Analysis on a broad set of occupational descriptors in the Occupational Information Network (O*NET) data. We establish four main empirical facts for the U.S. over the 1980–2005 time period that are robust to the inclusion of a detailed set of controls, subsamples, and levels of aggregation: (1) There is a positive relationship across occupations between task complexity and wages and wage growth; (2) Conditional on task complexity, routine-intensity of an occupation is not a significant predictor of wage growth and wage levels; (3) Labor has reallocated from less complex to more complex occupations over time; (4) Within groups of occupations with similar task complexity labor has reallocated to non-routine occupations over time. We then formulate a model of Complex-Task Biased Technological Change with heterogeneous skills and show analytically that it can rationalize these facts. We conclude that workers in non-routine occupations with low ability of solving complex tasks are not shielded from the labor market effects of automatization.

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Burdett–Mortensen Model of on-the-Job Search with Two Sectors

Florian Hoffmann Shouyong Shi

in: Review of Economic Dynamics , 2016


The focus of this paper is on the steady state of a two-sector economy with undirected search where employed and unemployed workers can search for jobs, both within a sector and between the sectors. As in the one-sector model, on-the-job search generates wage dispersion among homogeneous workers. The analysis of the two-sector model uncovers a property called constant tension that is responsible for analytical tractability. We characterize the steady state in all cases with constant tension. When time discounting vanishes, constant tension yields the endogenous separation rate in each sector as a linear function of the present value for a worker. The one-sector economy automatically satisfies constant tension, in which case the linear separation rate implies that equilibrium offers of the worker value are uniformly distributed. Constant tension also has strong predictions for worker transitions and value/wage dispersion, both within a sector and between the two sectors. When constant tension does not hold, we compute the steady state numerically and illustrate its properties.

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Unemployment in the Great Recession: A Comparison of Germany, Canada, and the United States

Florian Hoffmann Thomas Lemieux

in: Journal of Labor Economics , 2016


This paper looks at the surprisingly different labor market performance of the United States, Canada, Germany, and several other OECD countries during and after the Great Recession of 2008–9. A first important finding is that the large employment swings in the construction sector linked to the boom and bust in US housing markets is an important factor behind the different labor market performances of the three countries. We also find that cross-country differences among OECD countries are consistent with a conventional Okun relationship linking gross domestic product growth to employment performance.

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