Professor Dr Boris Hirsch

Professor Dr Boris Hirsch
Current Position

since 12/16

Research Fellow Department of Structural Change and Productivity

Halle Institute for Economic Research (IWH) – Member of the Leibniz Association

since 08/16

Professor of Economics

Leuphana University of Lüneburg

 

 

Research Interests

  • labour markets
  • industrial relations
  • empirical labour economics

Boris Hirsch joined the Department of Structural Change and Productivity as a Research Fellow in December 2016. His research focuses on the theory and empirics of imperfectly competitive labour markets, empirical labour economics, industrial relations, and migration.

Boris Hirsch is Professor of Economics, in particular Microeconometrics and Policy Evaluation, at Leuphana University of Lüneburg.

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Professor Dr Boris Hirsch
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Publications

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The Urban Wage Premium in Imperfect Labour Markets

Boris Hirsch Elke J. Jahn Alan Manning Michael Oberfichtner

in: Journal of Human Resources, forthcoming

Abstract

Using administrative data for West Germany, this paper investigates whether part of the urban wage premium stems from greater competition in denser labor markets. We show that employers possess less wage-setting power in denser markets. We further document that an important part of the observed urban wage premia can be explained by greater competition in denser labor markets.

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Uncovered Workers in Plants Covered by Collective Bargaining: Who Are They and How Do They Fare?

Boris Hirsch Philipp Lentge Claus Schnabel

in: British Journal of Industrial Relations, forthcoming

Abstract

Abstract In Germany, employers used to pay union members and non-members in a plant the same union wage in order to prevent workers from joining unions. Using recent administrative data, we investigate which workers in firms covered by collective bargaining agreements still individually benefit from these union agreements, which workers are not covered anymore and what this means for their wages. We show that about 9 per cent of workers in plants with collective agreements do not enjoy individual coverage (and thus the union wage) anymore. Econometric analyses with unconditional quantile regressions and firm-fixed-effects estimations demonstrate that not being individually covered by a collective agreement has serious wage implications for most workers. Low-wage non-union workers and those at low hierarchy levels particularly suffer since employers abstain from extending union wages to them in order to pay lower wages. This jeopardizes unions' goal of protecting all disadvantaged workers.

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Firm Wage Premia, Industrial Relations, and Rent Sharing in Germany

Boris Hirsch Steffen Müller

in: ILR Review, No. 5, 2020

Abstract

The authors use three distinct methods to investigate the influence of industrial relations on firm wage premia in Germany. First, ordinary least squares (OLS) regressions for the firm effects from a two-way fixed-effects decomposition of workers’ wages reveal that average premia are larger in firms bound by collective agreements and in firms with a works council, holding constant firm performance. Next, recentered influence function (RIF) regressions show that premia are less dispersed among covered firms but more dispersed among firms with a works council. Finally, in an Oaxaca–Blinder decomposition, the authors find that decreasing bargaining coverage is the only factor they consider that contributes to the marked rise in premia dispersion over time.

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Working Papers

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Organised Labour, Labour Market Imperfections, and Employer Wage Premia

Sabien Dobbelaer Boris Hirsch Steffen Müller Georg Neuschäffer

in: Tinbergen Institute Discussion Paper, No. 81, 2020

Abstract

This paper examines how collective bargaining through unions and workplace co-determination through works councils shape labour market imperfections and how labourmarket imperfections matter for employer wage premia. Based on representative Germanplant data for the years 1999{2016, we document that labour market imperfections arethe norm rather than the exception. Wage mark-downs, that is wages below the marginalrevenue product of labour rooted in employers' monopsony power, are the most prevalentoutcome. We further nd that both types of organised labour are accompanied by asmaller prevalence and intensity of wage mark-downs whereas the opposite holds for wagemark-ups, that is wages above the marginal revenue product of labour rooted in workers'monopoly power. Finally, we document a close link between our production-based labourmarket imperfection measures and employer wage premia. The prevalence and intensityof wage mark-downs are associated with a smaller level and larger dispersion of premiawhereas wage mark-ups are only accompanied by a higher premium level.

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Uncovered Workers in Plants Covered by Collective Bargaining: Who Are They and How Do They Fare?

Boris Hirsch Philipp Lentge Claus Schnabel

in: IZA Institute of Labor Economics, February 2022

Abstract

In Germany, employers used to pay union members and non-members in a plant the same union wage in order to prevent workers from joining unions. Using recent administrative data, we investigate which workers in firms covered by collective bargaining agreements still individually benefit from these union agreements, which workers are not covered anymore, and what this means for their wages. We show that about 9 percent of workers in plants with collective agreements do not enjoy individual coverage (and thus the union wage) anymore. Econometric analyses with unconditional quantile regressions and firm-fixed-effects estimations demonstrate that not being individually covered by a collective agreement has serious wage implications for most workers. Low-wage non-union workers and those at low hierarchy levels particularly suffer since employers abstain from extending union wages to them in order to pay lower wages. This jeopardizes unions' goal of protecting all disadvantaged workers.

read publication
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