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Wage Penalties for Career Interruptions: An Empirical Analysis for West Germany

Beblo, Miriam; Wolf, Elke - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2002

This paper examines the wage effects of different types of career interruptions. We consider the timing and duration of non-employment spells by exploiting an administrative data set of German social security accounts (IAB employment sample) supplemented with information on the employees? entire...

Persistent link: https://www.econbiz.de/10005097794

How much does a year off cost? Estimating the wage effects of employment breaks and part-time periods

Beblo, Miriam; Wolf, Elke - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2000

Discontinuities in the employment profile are supposed to cause wage cuts since they imply an interruption in the accumulation of human capital as well as a depreciation of the human capital stock built up in the past. In this paper, we estimate the return to effective experience, taking into...

Persistent link: https://www.econbiz.de/10005098272

Durable Goods, Innovation and Network Externalities

Cerquera Dussán, Daniel - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2007

We develop a model of R&D competition between an incumbent and a potential entrant with network externalities and durable goods. We show that the threat of entry eliminates the commitment problem that an incumbent may face in its R&D decision due to the goods? durability. Moreover, a potential...

Persistent link: https://www.econbiz.de/10005097721

R&D incentives, compatibility and network externalities

Cerquera Dussán, Daniel - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006

This paper analyzes the impact of network externalities on R&D competition between an incumbent and a potential entrant. The analysis shows that the incumbent always invests more than the entrant in the development of higher quality network goods. However, the incumbent exhibits a too low level...

Persistent link: https://www.econbiz.de/10005097740

Export and innovation activities in the German service sector: empirical evidence at the firm level

Ebling, Günther; Janz, Norbert - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 1999

In this paper we analyse the relationship between export and innovation activities of German service sector companies … using data from the 1997 wave of the Mannheim Innovation Panel in the Service Sector. There is a lot of support for the … Schumpeterian hypothesis of export activities being mainly driven by innovation activities. Factor endowment theories are only …

Persistent link: https://www.econbiz.de/10005098107

Firm Level Innovation and Productivity: Is there a Common Story Across Countries?

Peters, Bettina; Lööf, Hans; Janz, Norbert - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2003

observations from Germany and Sweden. Applying a knowledge production function that gives the relationship between innovation input …, innovation output and productivity, we find to a very large extent a common cross-country story for knowledge intensive …Recent studies have documented extensive heterogeneity in firm performance within countries, and innovation has been …

Persistent link: https://www.econbiz.de/10005098157

Innovation dynamics and endogenous market structure: econometric results from aggregated survey data

Gottschalk, Sandra; Janz, Norbert - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2001

This paper examines empirically the relationship between innovation and market structure within a simultaneous … concentration. In contrast, competition enforces innovation, i.e. sales concentration has a negative impact on R&D. …

Persistent link: https://www.econbiz.de/10005098331

Dynamic R&D incentives with network externalities

Cerquera Dussán, Daniel - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2006

This paper studies the incentives to undertake uncertain R&D initiatives in a dynamic duopoly network industry. It is shown that network externalities positively affect the incentives to invest in R&D. In the model, competition resembles a preemption race and, therefore, market performance...

Persistent link: https://www.econbiz.de/10005098390

Open Source, ICT infrastructure and firm performance

Cerquera Dussán, Daniel; Müller, Bettina - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2009

This paper empirically studies the impact of the adoption of open source software (OSS) on firms' labor productivity and innovative behavior. Using a representative sample of German firms, the results show that the adoption of OSS operating systems for servers and general OSS applications has no...

Persistent link: https://www.econbiz.de/10008615600