How does technical progress affect long-term unemployment? The relationship between long-term unemployment and the rate of growth attributable to technical progress is evaluated in a growth-matching-model with heterogeneous jobless workers and with endogenously determined long-term unemployed...

Production often causes pollution as a by-product. Once pollution problems become too severe, regulation is introduced by political authorities which forces the economy to make a transition to cleaner production processes. We model this transition as a change in general purpose technology (GPT)...

The European Union has implemented demand push and technology pull policies to foster innovation on the energy and resource efficiency of capital goods. The state of the art of general equilibrium modelling applied to environmental policy rarely treats product and process innovation separately...

We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme. When labor is scarcer it becomes more expensive and innovation investments that increase labor...

We analyze the impact of obsolescence of economic inventions by incorporating maintenance costsin the endogenous growth model of expanding product varieties. This contrasts with the existingliterature, which ignores maintenance costs and uses the model of quality improvements todescribe...

In der vorliegenden Arbeit wird ein Modell beschrieben, mit dem Ungleichverteilungen von VC untersucht werden. Im Zentrum stehen zwei Hypothesen: Die Spezialisierungshypothese, nach deren Aussage kein stattlicher Eingriff erforderlich ist, und die Hypothese der ineffizienten...

We introduce a class of production function whose inputs and outputs constitute multiples of quality and quantity. Under the efficiency unit approach, we precisely reduce innovation regarding qualitative and quantitative improvements of production to the measurement of quality-adjusted...

This paper explores the trade-off between economic growth and environmental quality along two paradigms of endogenous growth theory: variety expansion (HIP) and quality improvements (VIP). We compare the policies that match the decentralised economies' paths with the optimal "strong sustainable"...

The diversity of technological activities that contribute to growth in labour productivity is examined in this paper for manufacturing and services industries in eight major EU countries. We test the relevance of the two major strategies of technological competitiveness (based on innovation in...

This paper studies a two-country production economy with complete and frictionless financial markets and international trade in which competition in R&D leads to endogenous new firm creation and economic growth. Current monopolists ("incumbents") and potential new firms ("entrants") compete in...